/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:21:35,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:21:35,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:21:36,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 00:21:36,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:21:36,170 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:21:36,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:21:36,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:21:36,177 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:21:36,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:21:36,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:21:36,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:21:36,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:21:36,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:21:36,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:21:36,179 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:21:36,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:21:36,180 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:21:36,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:21:36,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:21:36,181 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:21:36,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:21:36,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:21:36,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:21:36,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:21:36,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:21:36,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:21:36,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:21:36,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:21:36,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:21:36,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:21:36,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:21:36,691 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:21:36,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2021-02-24 00:21:36,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/640213e46/9d969528bc504a859714051f065d1c27/FLAG7fd1e0b55 [2021-02-24 00:21:37,572 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:21:37,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2021-02-24 00:21:37,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/640213e46/9d969528bc504a859714051f065d1c27/FLAG7fd1e0b55 [2021-02-24 00:21:37,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/640213e46/9d969528bc504a859714051f065d1c27 [2021-02-24 00:21:37,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:21:37,944 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:21:37,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:21:37,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:21:37,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:21:37,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:21:37" (1/1) ... [2021-02-24 00:21:37,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164a3d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:37, skipping insertion in model container [2021-02-24 00:21:37,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:21:37" (1/1) ... [2021-02-24 00:21:37,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:21:37,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:21:38,181 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/jm2006_variant.i[895,908] [2021-02-24 00:21:38,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:21:38,210 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:21:38,227 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/jm2006_variant.i[895,908] [2021-02-24 00:21:38,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:21:38,251 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:21:38,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:38 WrapperNode [2021-02-24 00:21:38,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:21:38,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:21:38,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:21:38,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:21:38,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:38" (1/1) ... [2021-02-24 00:21:38,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:38" (1/1) ... [2021-02-24 00:21:38,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:38" (1/1) ... [2021-02-24 00:21:38,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:38" (1/1) ... [2021-02-24 00:21:38,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:38" (1/1) ... [2021-02-24 00:21:38,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:38" (1/1) ... [2021-02-24 00:21:38,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:38" (1/1) ... [2021-02-24 00:21:38,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:21:38,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:21:38,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:21:38,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:21:38,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:38" (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 [2021-02-24 00:21:38,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:21:38,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:21:38,419 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:21:38,419 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 00:21:38,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 00:21:38,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:21:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:21:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:21:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 00:21:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 00:21:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:21:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:21:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 00:21:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 00:21:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 00:21:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:21:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:21:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:21:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:21:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:21:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:21:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:21:38,791 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:21:38,791 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 00:21:38,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:21:38 BoogieIcfgContainer [2021-02-24 00:21:38,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:21:38,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:21:38,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:21:38,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:21:38,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:21:37" (1/3) ... [2021-02-24 00:21:38,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de1bb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:21:38, skipping insertion in model container [2021-02-24 00:21:38,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:38" (2/3) ... [2021-02-24 00:21:38,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de1bb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:21:38, skipping insertion in model container [2021-02-24 00:21:38,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:21:38" (3/3) ... [2021-02-24 00:21:38,810 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2021-02-24 00:21:38,822 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:21:38,832 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:21:38,893 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:21:38,966 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:21:38,966 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:21:38,967 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:21:38,967 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:21:38,967 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:21:38,967 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:21:38,967 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:21:38,968 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:21:39,052 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2021-02-24 00:21:39,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-24 00:21:39,083 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:21:39,085 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, 1] [2021-02-24 00:21:39,086 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:21:39,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:21:39,125 INFO L82 PathProgramCache]: Analyzing trace with hash 855051478, now seen corresponding path program 1 times [2021-02-24 00:21:39,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:21:39,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601337804] [2021-02-24 00:21:39,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:21:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:39,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:39,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:39,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:39,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:39,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:21:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:39,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:39,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:21:39,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601337804] [2021-02-24 00:21:39,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:21:39,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 00:21:39,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303145895] [2021-02-24 00:21:39,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 00:21:39,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:21:39,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 00:21:39,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:21:39,607 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2021-02-24 00:21:39,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:21:39,738 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2021-02-24 00:21:39,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 00:21:39,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2021-02-24 00:21:39,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:21:39,752 INFO L225 Difference]: With dead ends: 61 [2021-02-24 00:21:39,752 INFO L226 Difference]: Without dead ends: 38 [2021-02-24 00:21:39,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:21:39,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-02-24 00:21:39,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-02-24 00:21:39,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-02-24 00:21:39,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2021-02-24 00:21:39,825 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 30 [2021-02-24 00:21:39,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:21:39,826 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2021-02-24 00:21:39,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 00:21:39,826 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2021-02-24 00:21:39,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-24 00:21:39,828 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:21:39,828 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, 1] [2021-02-24 00:21:39,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:21:39,829 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:21:39,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:21:39,830 INFO L82 PathProgramCache]: Analyzing trace with hash 540130817, now seen corresponding path program 1 times [2021-02-24 00:21:39,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:21:39,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612572549] [2021-02-24 00:21:39,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:21:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:39,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:39,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:39,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:39,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:21:39,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:39,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 00:21:39,997 WARN L141 QuantifierPusher]: treesize reduction 7, result has 81.6 percent of original size [2021-02-24 00:21:40,000 WARN L147 QuantifierPusher]: treesize reduction 7, result has 81.6 percent of original size 31 [2021-02-24 00:21:40,026 WARN L141 QuantifierPusher]: treesize reduction 7, result has 79.4 percent of original size [2021-02-24 00:21:40,028 WARN L147 QuantifierPusher]: treesize reduction 7, result has 79.4 percent of original size 27 [2021-02-24 00:21:40,054 WARN L141 QuantifierPusher]: treesize reduction 7, result has 76.7 percent of original size [2021-02-24 00:21:40,056 WARN L147 QuantifierPusher]: treesize reduction 7, result has 76.7 percent of original size 23 [2021-02-24 00:21:40,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:40,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:21:40,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:40,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:21:40,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:40,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:40,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:21:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:40,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:40,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:40,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:21:40,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612572549] [2021-02-24 00:21:40,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:21:40,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 00:21:40,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409014885] [2021-02-24 00:21:40,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:21:40,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:21:40,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:21:40,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:21:40,176 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 10 states. [2021-02-24 00:21:40,636 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-24 00:21:40,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:21:40,881 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-02-24 00:21:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 00:21:40,881 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2021-02-24 00:21:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:21:40,884 INFO L225 Difference]: With dead ends: 47 [2021-02-24 00:21:40,884 INFO L226 Difference]: Without dead ends: 41 [2021-02-24 00:21:40,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2021-02-24 00:21:40,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-02-24 00:21:40,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2021-02-24 00:21:40,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-02-24 00:21:40,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2021-02-24 00:21:40,902 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 30 [2021-02-24 00:21:40,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:21:40,902 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2021-02-24 00:21:40,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:21:40,903 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2021-02-24 00:21:40,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-02-24 00:21:40,905 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:21:40,905 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:21:40,905 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:21:40,906 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:21:40,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:21:40,907 INFO L82 PathProgramCache]: Analyzing trace with hash 881077893, now seen corresponding path program 1 times [2021-02-24 00:21:40,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:21:40,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720537205] [2021-02-24 00:21:40,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:21:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:40,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:41,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:21:41,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 00:21:41,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 00:21:41,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 00:21:41,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 00:21:41,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 00:21:41,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 00:21:41,122 WARN L141 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size [2021-02-24 00:21:41,124 WARN L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-02-24 00:21:41,152 WARN L141 QuantifierPusher]: treesize reduction 7, result has 78.8 percent of original size [2021-02-24 00:21:41,154 WARN L147 QuantifierPusher]: treesize reduction 7, result has 78.8 percent of original size 26 [2021-02-24 00:21:41,199 WARN L141 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-02-24 00:21:41,200 WARN L147 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size 12 [2021-02-24 00:21:41,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:21:41,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:21:41,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:41,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:21:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:41,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:41,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:21:41,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720537205] [2021-02-24 00:21:41,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:21:41,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-02-24 00:21:41,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884188206] [2021-02-24 00:21:41,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-24 00:21:41,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:21:41,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-24 00:21:41,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-02-24 00:21:41,315 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 15 states. [2021-02-24 00:21:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:21:42,296 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2021-02-24 00:21:42,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-24 00:21:42,297 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2021-02-24 00:21:42,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:21:42,299 INFO L225 Difference]: With dead ends: 55 [2021-02-24 00:21:42,299 INFO L226 Difference]: Without dead ends: 49 [2021-02-24 00:21:42,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2021-02-24 00:21:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-02-24 00:21:42,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2021-02-24 00:21:42,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-02-24 00:21:42,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-02-24 00:21:42,316 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 38 [2021-02-24 00:21:42,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:21:42,317 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-02-24 00:21:42,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-24 00:21:42,317 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-02-24 00:21:42,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-24 00:21:42,319 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:21:42,319 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2021-02-24 00:21:42,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 00:21:42,320 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:21:42,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:21:42,320 INFO L82 PathProgramCache]: Analyzing trace with hash 984603401, now seen corresponding path program 2 times [2021-02-24 00:21:42,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:21:42,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535649319] [2021-02-24 00:21:42,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:21:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:42,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:42,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:21:42,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 00:21:42,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 00:21:42,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 00:21:42,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 00:21:42,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 00:21:42,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 00:21:42,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 00:21:42,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 00:21:42,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 00:21:42,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 00:21:42,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 00:21:42,713 WARN L141 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size [2021-02-24 00:21:42,715 WARN L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-02-24 00:21:42,750 WARN L141 QuantifierPusher]: treesize reduction 7, result has 78.8 percent of original size [2021-02-24 00:21:42,751 WARN L147 QuantifierPusher]: treesize reduction 7, result has 78.8 percent of original size 26 [2021-02-24 00:21:42,786 WARN L141 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-02-24 00:21:42,787 WARN L147 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size 12 [2021-02-24 00:21:42,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:21:42,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:21:42,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:42,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:21:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:42,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:42,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:42,925 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:21:42,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1535649319] [2021-02-24 00:21:42,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:21:42,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2021-02-24 00:21:42,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411426009] [2021-02-24 00:21:42,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-24 00:21:42,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:21:42,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-24 00:21:42,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-02-24 00:21:42,929 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 20 states. [2021-02-24 00:21:44,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:21:44,309 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-02-24 00:21:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-24 00:21:44,309 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 46 [2021-02-24 00:21:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:21:44,310 INFO L225 Difference]: With dead ends: 47 [2021-02-24 00:21:44,310 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:21:44,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=189, Invalid=1371, Unknown=0, NotChecked=0, Total=1560 [2021-02-24 00:21:44,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:21:44,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:21:44,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:21:44,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:21:44,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-02-24 00:21:44,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:21:44,316 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:21:44,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-24 00:21:44,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:21:44,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:21:44,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 00:21:44,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:21:45,183 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-24 00:21:45,184 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-24 00:21:45,184 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-24 00:21:45,184 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-24 00:21:45,184 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-24 00:21:45,185 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:21:45,185 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 00:21:45,185 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2021-02-24 00:21:45,185 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-24 00:21:45,185 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-24 00:21:45,185 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-24 00:21:45,186 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)|)) [2021-02-24 00:21:45,186 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-24 00:21:45,186 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:21:45,186 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:21:45,186 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:21:45,186 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 00:21:45,186 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:21:45,186 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-02-24 00:21:45,187 INFO L189 CegarLoopUtils]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-02-24 00:21:45,187 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-02-24 00:21:45,187 INFO L189 CegarLoopUtils]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2021-02-24 00:21:45,187 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-02-24 00:21:45,187 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (and (<= main_~i~0 main_~x~0) (<= main_~x~0 main_~i~0)) [2021-02-24 00:21:45,187 INFO L185 CegarLoopUtils]: At program point L33-2(lines 33 37) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-24 00:21:45,188 INFO L185 CegarLoopUtils]: At program point L33-3(lines 24 42) the Hoare annotation is: (let ((.cse0 (<= (+ main_~y~0 main_~z~0) 0)) (.cse3 (+ main_~x~0 main_~j~0)) (.cse1 (+ main_~y~0 main_~i~0 main_~z~0)) (.cse2 (< 0 (+ main_~y~0 main_~z~0 1)))) (and (or .cse0 (<= .cse1 main_~j~0)) (or .cse2 (<= .cse3 .cse1)) (or .cse0 (<= .cse1 .cse3)) (or (<= main_~j~0 .cse1) .cse2))) [2021-02-24 00:21:45,188 INFO L192 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: true [2021-02-24 00:21:45,188 INFO L192 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: true [2021-02-24 00:21:45,188 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-24 00:21:45,188 INFO L192 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: true [2021-02-24 00:21:45,188 INFO L192 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: true [2021-02-24 00:21:45,189 INFO L192 CegarLoopUtils]: At program point L27-2(line 27) the Hoare annotation is: true [2021-02-24 00:21:45,189 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 24 42) the Hoare annotation is: true [2021-02-24 00:21:45,189 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 24 42) the Hoare annotation is: true [2021-02-24 00:21:45,189 INFO L192 CegarLoopUtils]: At program point L38(lines 38 40) the Hoare annotation is: true [2021-02-24 00:21:45,189 INFO L185 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~i~0 main_~y~0 main_~z~0 1))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-24 00:21:45,189 INFO L185 CegarLoopUtils]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~y~0 main_~z~0 1)) (.cse2 (+ main_~i~0 main_~y~0 |main_#t~post6| 1)) (.cse1 (+ main_~x~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse2) (<= .cse1 .cse0) (<= .cse2 .cse1))) [2021-02-24 00:21:45,190 INFO L185 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-24 00:21:45,190 INFO L185 CegarLoopUtils]: At program point L36-2(line 36) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 main_~y~0 |main_#t~post6| 1)) (.cse0 (+ main_~x~0 main_~j~0)) (.cse2 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse2 .cse0) (<= .cse1 .cse0) (<= .cse0 .cse2))) [2021-02-24 00:21:45,190 INFO L185 CegarLoopUtils]: At program point L34-1(line 34) the Hoare annotation is: (let ((.cse0 (+ main_~j~0 |main_#t~post5|)) (.cse2 (+ main_~x~0 main_~j~0)) (.cse1 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse2) (<= .cse1 .cse0) (<= .cse2 .cse1))) [2021-02-24 00:21:45,190 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (let ((.cse1 (+ main_~y~0 main_~i~0)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= main_~i~0 main_~x~0) (<= main_~x~0 main_~i~0))) [2021-02-24 00:21:45,191 INFO L185 CegarLoopUtils]: At program point L34-2(line 34) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0 1)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0)) (.cse2 (+ main_~j~0 |main_#t~post5|))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= .cse2 .cse0) (<= .cse0 .cse2))) [2021-02-24 00:21:45,191 INFO L192 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: true [2021-02-24 00:21:45,191 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 24 42) the Hoare annotation is: true [2021-02-24 00:21:45,191 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-24 00:21:45,191 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-24 00:21:45,191 INFO L192 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: true [2021-02-24 00:21:45,192 INFO L192 CegarLoopUtils]: At program point L26-1(line 26) the Hoare annotation is: true [2021-02-24 00:21:45,192 INFO L192 CegarLoopUtils]: At program point L26-2(line 26) the Hoare annotation is: true [2021-02-24 00:21:45,192 INFO L185 CegarLoopUtils]: At program point L39(line 39) the Hoare annotation is: (and (<= (+ main_~y~0 main_~z~0) 0) (< 0 (+ main_~y~0 main_~z~0 1))) [2021-02-24 00:21:45,192 INFO L185 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0 1)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-24 00:21:45,192 INFO L192 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2021-02-24 00:21:45,192 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-02-24 00:21:45,192 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2021-02-24 00:21:45,193 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:21:45,193 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:21:45,193 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))) [2021-02-24 00:21:45,193 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:21:45,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:21:45 BoogieIcfgContainer [2021-02-24 00:21:45,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:21:45,217 INFO L168 Benchmark]: Toolchain (without parser) took 7285.76 ms. Allocated memory was 152.0 MB in the beginning and 249.6 MB in the end (delta: 97.5 MB). Free memory was 129.2 MB in the beginning and 141.8 MB in the end (delta: -12.6 MB). Peak memory consumption was 113.4 MB. Max. memory is 8.0 GB. [2021-02-24 00:21:45,218 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 152.0 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:21:45,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.22 ms. Allocated memory is still 152.0 MB. Free memory was 128.2 MB in the beginning and 118.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 00:21:45,219 INFO L168 Benchmark]: Boogie Preprocessor took 45.60 ms. Allocated memory is still 152.0 MB. Free memory was 118.5 MB in the beginning and 117.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 00:21:45,220 INFO L168 Benchmark]: RCFGBuilder took 494.80 ms. Allocated memory is still 152.0 MB. Free memory was 117.0 MB in the beginning and 100.5 MB in the end (delta: 16.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-24 00:21:45,221 INFO L168 Benchmark]: TraceAbstraction took 6417.74 ms. Allocated memory was 152.0 MB in the beginning and 249.6 MB in the end (delta: 97.5 MB). Free memory was 100.0 MB in the beginning and 141.8 MB in the end (delta: -41.8 MB). Peak memory consumption was 84.0 MB. Max. memory is 8.0 GB. [2021-02-24 00:21:45,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 152.0 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 306.22 ms. Allocated memory is still 152.0 MB. Free memory was 128.2 MB in the beginning and 118.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.60 ms. Allocated memory is still 152.0 MB. Free memory was 118.5 MB in the beginning and 117.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 494.80 ms. Allocated memory is still 152.0 MB. Free memory was 117.0 MB in the beginning and 100.5 MB in the end (delta: 16.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6417.74 ms. Allocated memory was 152.0 MB in the beginning and 249.6 MB in the end (delta: 97.5 MB). Free memory was 100.0 MB in the beginning and 141.8 MB in the end (delta: -41.8 MB). Peak memory consumption was 84.0 MB. Max. memory is 8.0 GB. * 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: 33]: Loop Invariant Derived loop invariant: y + i + z <= x + j && x + j <= y + i + z - 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, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 138 SDtfs, 182 SDslu, 382 SDs, 0 SdLazy, 787 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 48 LocationsWithAnnotation, 69 PreInvPairs, 95 NumberOfFragments, 380 HoareAnnotationTreeSize, 69 FomulaSimplifications, 797 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 48 FomulaSimplificationsInter, 1407 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 37449 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/11 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...