/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:23:18,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:23:18,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:23:18,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:23:18,238 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:23:18,262 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:23:18,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:23:18,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:23:18,269 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:23:18,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:23:18,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:23:18,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:23:18,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:23:18,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:23:18,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:23:18,271 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:23:18,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:23:18,271 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:23:18,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:23:18,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:23:18,272 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:23:18,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:23:18,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:23:18,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:23:18,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:23:18,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:23:18,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:23:18,274 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:23:18,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:23:18,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:23:18,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:23:18,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:23:18,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:23:18,817 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:23:18,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2021-02-22 02:23:18,914 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7f96369e/13a9696b8cee4f2381cc016a0d155765/FLAG99d160afb [2021-02-22 02:23:19,519 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:23:19,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2021-02-22 02:23:19,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7f96369e/13a9696b8cee4f2381cc016a0d155765/FLAG99d160afb [2021-02-22 02:23:19,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7f96369e/13a9696b8cee4f2381cc016a0d155765 [2021-02-22 02:23:19,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:23:19,922 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:23:19,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:23:19,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:23:19,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:23:19,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:23:19" (1/1) ... [2021-02-22 02:23:19,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34586478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:19, skipping insertion in model container [2021-02-22 02:23:19,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:23:19" (1/1) ... [2021-02-22 02:23:19,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:23:19,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:23:20,244 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i[895,908] [2021-02-22 02:23:20,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:23:20,275 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:23:20,294 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i[895,908] [2021-02-22 02:23:20,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:23:20,319 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:23:20,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:20 WrapperNode [2021-02-22 02:23:20,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:23:20,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:23:20,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:23:20,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:23:20,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:20" (1/1) ... [2021-02-22 02:23:20,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:20" (1/1) ... [2021-02-22 02:23:20,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:20" (1/1) ... [2021-02-22 02:23:20,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:20" (1/1) ... [2021-02-22 02:23:20,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:20" (1/1) ... [2021-02-22 02:23:20,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:20" (1/1) ... [2021-02-22 02:23:20,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:20" (1/1) ... [2021-02-22 02:23:20,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:23:20,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:23:20,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:23:20,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:23:20,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:20" (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 [2021-02-22 02:23:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:23:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:23:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:23:20,518 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-22 02:23:20,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-22 02:23:20,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:23:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:23:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:23:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-22 02:23:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-22 02:23:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:23:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:23:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-22 02:23:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 02:23:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:23:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:23:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:23:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:23:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:23:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:23:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:23:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:23:20,893 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:23:20,895 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:23:20,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:23:20 BoogieIcfgContainer [2021-02-22 02:23:20,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:23:20,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:23:20,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:23:20,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:23:20,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:23:19" (1/3) ... [2021-02-22 02:23:20,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc1fcfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:23:20, skipping insertion in model container [2021-02-22 02:23:20,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:20" (2/3) ... [2021-02-22 02:23:20,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc1fcfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:23:20, skipping insertion in model container [2021-02-22 02:23:20,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:23:20" (3/3) ... [2021-02-22 02:23:20,913 INFO L111 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i [2021-02-22 02:23:20,927 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:23:20,935 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:23:20,958 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:23:21,005 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:23:21,005 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:23:21,005 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:23:21,006 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:23:21,006 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:23:21,006 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:23:21,006 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:23:21,006 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:23:21,025 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2021-02-22 02:23:21,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-22 02:23:21,036 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:23:21,038 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] [2021-02-22 02:23:21,038 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:23:21,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:23:21,047 INFO L82 PathProgramCache]: Analyzing trace with hash -297017165, now seen corresponding path program 1 times [2021-02-22 02:23:21,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:23:21,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927685256] [2021-02-22 02:23:21,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:23:21,162 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:23:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:21,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:21,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:21,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:21,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:23:21,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:21,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:21,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:23:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:21,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:21,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:23:21,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927685256] [2021-02-22 02:23:21,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:23:21,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:23:21,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568170690] [2021-02-22 02:23:21,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:23:21,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:23:21,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:23:21,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:23:21,620 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2021-02-22 02:23:21,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:23:21,994 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2021-02-22 02:23:21,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-22 02:23:21,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-02-22 02:23:22,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:23:22,010 INFO L225 Difference]: With dead ends: 51 [2021-02-22 02:23:22,010 INFO L226 Difference]: Without dead ends: 30 [2021-02-22 02:23:22,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:23:22,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-02-22 02:23:22,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-02-22 02:23:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-02-22 02:23:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2021-02-22 02:23:22,077 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 25 [2021-02-22 02:23:22,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:23:22,078 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2021-02-22 02:23:22,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:23:22,079 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2021-02-22 02:23:22,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-22 02:23:22,080 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:23:22,081 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, 1, 1, 1] [2021-02-22 02:23:22,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:23:22,082 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:23:22,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:23:22,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1229223985, now seen corresponding path program 1 times [2021-02-22 02:23:22,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:23:22,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885552873] [2021-02-22 02:23:22,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:23:22,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:23:22,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:23:22,179 WARN L141 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-02-22 02:23:22,196 WARN L147 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size 11 [2021-02-22 02:23:22,204 WARN L141 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size [2021-02-22 02:23:22,210 WARN L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-02-22 02:23:22,211 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-22 02:23:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:22,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:22,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:23:22,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:23:22,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 02:23:22,498 WARN L141 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-02-22 02:23:22,501 WARN L147 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size 21 [2021-02-22 02:23:22,545 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-22 02:23:22,547 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-22 02:23:22,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:23:22,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:23:22,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:22,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:23:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:22,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:23:22,641 WARN L141 QuantifierPusher]: treesize reduction 2, result has 96.6 percent of original size [2021-02-22 02:23:22,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:23:22,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:23:22,660 WARN L147 QuantifierPusher]: treesize reduction 2, result has 96.6 percent of original size 56 [2021-02-22 02:23:22,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:23:22,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:23:22,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:23:22,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:23:22,866 WARN L141 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-02-22 02:23:22,872 WARN L147 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size 52 [2021-02-22 02:23:22,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-02-22 02:23:22,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:22,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:23:22,973 WARN L141 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size [2021-02-22 02:23:22,977 WARN L147 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size 58 [2021-02-22 02:23:22,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-22 02:23:23,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:23,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:23:23,096 WARN L141 QuantifierPusher]: treesize reduction 2, result has 96.7 percent of original size [2021-02-22 02:23:23,103 WARN L147 QuantifierPusher]: treesize reduction 2, result has 96.7 percent of original size 59 [2021-02-22 02:23:23,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-02-22 02:23:23,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:23,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:23,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885552873] [2021-02-22 02:23:23,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:23:23,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 02:23:23,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549215532] [2021-02-22 02:23:23,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 02:23:23,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:23:23,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 02:23:23,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-02-22 02:23:23,175 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 13 states. [2021-02-22 02:23:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:23:24,115 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-02-22 02:23:24,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-22 02:23:24,115 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2021-02-22 02:23:24,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:23:24,116 INFO L225 Difference]: With dead ends: 31 [2021-02-22 02:23:24,116 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 02:23:24,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2021-02-22 02:23:24,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 02:23:24,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 02:23:24,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 02:23:24,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 02:23:24,120 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-02-22 02:23:24,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:23:24,120 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 02:23:24,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 02:23:24,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 02:23:24,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 02:23:24,121 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:23:24,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 02:23:24,689 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-22 02:23:24,689 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-22 02:23:24,690 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-22 02:23:24,690 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-22 02:23:24,690 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-22 02:23:24,690 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 02:23:24,690 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 02:23:24,691 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2021-02-22 02:23:24,691 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-22 02:23:24,691 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-22 02:23:24,691 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-22 02:23:24,691 INFO L185 CegarLoopUtils]: 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)|)) [2021-02-22 02:23:24,692 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-22 02:23:24,692 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 02:23:24,692 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 02:23:24,692 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 02:23:24,692 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 02:23:24,692 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 02:23:24,693 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-02-22 02:23:24,693 INFO L189 CegarLoopUtils]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-02-22 02:23:24,693 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-02-22 02:23:24,693 INFO L189 CegarLoopUtils]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2021-02-22 02:23:24,693 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-02-22 02:23:24,693 INFO L185 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: (and (exists ((v_main_~hi~0_11 Int) (v_main_~mid~0_14 Int)) (let ((.cse0 (* 2 v_main_~mid~0_14))) (and (<= 1 v_main_~mid~0_14) (<= v_main_~hi~0_11 .cse0) (<= .cse0 v_main_~hi~0_11) (let ((.cse1 (+ main_~hi~0 1))) (or (let ((.cse2 (+ main_~hi~0 v_main_~mid~0_14 1))) (and (= v_main_~hi~0_11 (+ main_~lo~0 main_~hi~0)) (<= .cse1 v_main_~hi~0_11) (= (+ main_~mid~0 v_main_~hi~0_11) .cse2) (or (<= v_main_~hi~0_11 .cse1) (<= v_main_~hi~0_11 .cse2)))) (and (= v_main_~hi~0_11 .cse1) (= main_~lo~0 1) (= main_~mid~0 v_main_~mid~0_14))))))) (< 0 main_~mid~0)) [2021-02-22 02:23:24,694 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (or (and (< 0 main_~mid~0) (exists ((v_main_~hi~0_11 Int) (v_main_~mid~0_14 Int)) (let ((.cse0 (* 2 v_main_~mid~0_14))) (and (<= 1 v_main_~mid~0_14) (<= v_main_~hi~0_11 .cse0) (<= .cse0 v_main_~hi~0_11) (let ((.cse1 (+ main_~hi~0 1))) (or (and (= v_main_~hi~0_11 (+ main_~lo~0 main_~hi~0)) (= (+ main_~mid~0 v_main_~hi~0_11) (+ main_~hi~0 v_main_~mid~0_14)) (<= .cse1 v_main_~hi~0_11) (or (<= v_main_~hi~0_11 .cse1) (<= v_main_~hi~0_11 (+ main_~hi~0 v_main_~mid~0_14 1)))) (and (= v_main_~hi~0_11 .cse1) (= main_~lo~0 1) (= (+ main_~mid~0 1) v_main_~mid~0_14)))))))) (and (exists ((v_main_~hi~0_11 Int) (v_main_~mid~0_14 Int)) (let ((.cse2 (* 2 v_main_~mid~0_14))) (and (<= 1 v_main_~mid~0_14) (<= v_main_~hi~0_11 .cse2) (<= .cse2 v_main_~hi~0_11) (or (and (= v_main_~hi~0_11 main_~hi~0) (= main_~lo~0 0) (= main_~mid~0 v_main_~mid~0_14)) (let ((.cse3 (+ main_~hi~0 v_main_~mid~0_14))) (and (= v_main_~hi~0_11 (+ main_~lo~0 main_~hi~0)) (= (+ main_~mid~0 v_main_~hi~0_11) .cse3) (<= main_~hi~0 v_main_~hi~0_11) (or (<= v_main_~hi~0_11 main_~hi~0) (<= v_main_~hi~0_11 .cse3)))))))) (= main_~lo~0 0))) [2021-02-22 02:23:24,694 INFO L185 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: (and (= main_~lo~0 0) (<= 1 main_~mid~0)) [2021-02-22 02:23:24,694 INFO L185 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: (= main_~lo~0 0) [2021-02-22 02:23:24,695 INFO L185 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: (= main_~lo~0 0) [2021-02-22 02:23:24,695 INFO L192 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: true [2021-02-22 02:23:24,695 INFO L185 CegarLoopUtils]: At program point L27-2(line 27) the Hoare annotation is: (= main_~lo~0 0) [2021-02-22 02:23:24,695 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 24 37) the Hoare annotation is: true [2021-02-22 02:23:24,695 INFO L192 CegarLoopUtils]: At program point L25-1(line 25) the Hoare annotation is: true [2021-02-22 02:23:24,695 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 24 37) the Hoare annotation is: true [2021-02-22 02:23:24,696 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (and (< 0 main_~mid~0) (exists ((v_main_~hi~0_11 Int) (v_main_~mid~0_14 Int)) (let ((.cse0 (* 2 v_main_~mid~0_14))) (and (<= 1 v_main_~mid~0_14) (<= v_main_~hi~0_11 .cse0) (<= .cse0 v_main_~hi~0_11) (or (let ((.cse1 (+ main_~hi~0 v_main_~mid~0_14))) (and (= (+ main_~mid~0 v_main_~hi~0_11) .cse1) (<= main_~hi~0 v_main_~hi~0_11) (or (<= v_main_~hi~0_11 main_~hi~0) (<= v_main_~hi~0_11 .cse1)) (= (+ v_main_~hi~0_11 1) (+ main_~lo~0 main_~hi~0)))) (and (= v_main_~hi~0_11 main_~hi~0) (= main_~lo~0 1) (= main_~mid~0 v_main_~mid~0_14))))))) [2021-02-22 02:23:24,696 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 24 37) the Hoare annotation is: true [2021-02-22 02:23:24,696 INFO L185 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: (= main_~lo~0 0) [2021-02-22 02:23:24,696 INFO L185 CegarLoopUtils]: At program point L30-2(lines 30 34) the Hoare annotation is: (exists ((v_main_~hi~0_11 Int) (v_main_~mid~0_14 Int)) (let ((.cse0 (* 2 v_main_~mid~0_14))) (and (<= 1 v_main_~mid~0_14) (<= v_main_~hi~0_11 .cse0) (<= .cse0 v_main_~hi~0_11) (or (and (= v_main_~hi~0_11 main_~hi~0) (= main_~lo~0 0) (= main_~mid~0 v_main_~mid~0_14)) (let ((.cse1 (+ main_~hi~0 v_main_~mid~0_14))) (and (= v_main_~hi~0_11 (+ main_~lo~0 main_~hi~0)) (= (+ main_~mid~0 v_main_~hi~0_11) .cse1) (<= main_~hi~0 v_main_~hi~0_11) (or (<= v_main_~hi~0_11 main_~hi~0) (<= v_main_~hi~0_11 .cse1)))))))) [2021-02-22 02:23:24,696 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-22 02:23:24,697 INFO L185 CegarLoopUtils]: At program point L30-3(lines 30 34) the Hoare annotation is: (and (<= main_~hi~0 main_~lo~0) (exists ((v_main_~hi~0_11 Int) (v_main_~mid~0_14 Int)) (let ((.cse0 (* 2 v_main_~mid~0_14))) (and (<= 1 v_main_~mid~0_14) (<= v_main_~hi~0_11 .cse0) (<= .cse0 v_main_~hi~0_11) (let ((.cse1 (+ main_~hi~0 1))) (or (and (= v_main_~hi~0_11 (+ main_~lo~0 main_~hi~0)) (= (+ main_~mid~0 v_main_~hi~0_11) (+ main_~hi~0 v_main_~mid~0_14)) (<= .cse1 v_main_~hi~0_11) (or (<= v_main_~hi~0_11 .cse1) (<= v_main_~hi~0_11 (+ main_~hi~0 v_main_~mid~0_14 1)))) (and (= v_main_~hi~0_11 .cse1) (= main_~lo~0 1) (= (+ main_~mid~0 1) v_main_~mid~0_14))))))) (< 0 (+ main_~mid~0 1))) [2021-02-22 02:23:24,697 INFO L192 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: true [2021-02-22 02:23:24,697 INFO L192 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: true [2021-02-22 02:23:24,697 INFO L192 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2021-02-22 02:23:24,697 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-02-22 02:23:24,698 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2021-02-22 02:23:24,698 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:23:24,698 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:23:24,698 INFO L185 CegarLoopUtils]: At program point L18(lines 18 20) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-22 02:23:24,699 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:23:24,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,713 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:23:24 BoogieIcfgContainer [2021-02-22 02:23:24,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:23:24,734 INFO L168 Benchmark]: Toolchain (without parser) took 4848.79 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 107.7 MB in the beginning and 146.2 MB in the end (delta: -38.5 MB). Peak memory consumption was 78.4 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:24,734 INFO L168 Benchmark]: CDTParser took 1.34 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:23:24,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.54 ms. Allocated memory is still 151.0 MB. Free memory was 134.3 MB in the beginning and 124.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:24,736 INFO L168 Benchmark]: Boogie Preprocessor took 44.92 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 123.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:24,737 INFO L168 Benchmark]: RCFGBuilder took 529.88 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 120.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:24,738 INFO L168 Benchmark]: TraceAbstraction took 3830.35 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 119.4 MB in the beginning and 146.2 MB in the end (delta: -26.7 MB). Peak memory consumption was 90.3 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:24,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 392.54 ms. Allocated memory is still 151.0 MB. Free memory was 134.3 MB in the beginning and 124.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.92 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 123.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 529.88 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 120.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3830.35 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 119.4 MB in the beginning and 146.2 MB in the end (delta: -26.7 MB). Peak memory consumption was 90.3 MB. Max. memory is 8.0 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_~mid~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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: 30]: Loop Invariant [2021-02-22 02:23:24,751 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,751 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,752 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,752 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,752 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,752 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,753 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,753 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,753 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,753 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,753 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] [2021-02-22 02:23:24,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~hi~0_11,QUANTIFIED] [2021-02-22 02:23:24,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~mid~0_14,QUANTIFIED] Derived loop invariant: (\exists v_main_~hi~0_11 : int, v_main_~mid~0_14 : int :: ((1 <= v_main_~mid~0_14 && v_main_~hi~0_11 <= 2 * v_main_~mid~0_14) && 2 * v_main_~mid~0_14 <= v_main_~hi~0_11) && (((v_main_~hi~0_11 == hi && lo == 0) && mid == v_main_~mid~0_14) || (((v_main_~hi~0_11 == lo + hi && mid + v_main_~hi~0_11 == hi + v_main_~mid~0_14) && hi <= v_main_~hi~0_11) && (v_main_~hi~0_11 <= hi || v_main_~hi~0_11 <= hi + v_main_~mid~0_14)))) - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 48 SDslu, 116 SDs, 0 SdLazy, 166 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 45 PreInvPairs, 55 NumberOfFragments, 444 HoareAnnotationTreeSize, 45 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 38 FomulaSimplificationsInter, 705 FormulaSimplificationTreeSizeReductionInter, 0.4s 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...