/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test24-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:18:43,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:18:43,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:18:43,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:18:43,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:18:43,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:18:43,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:18:43,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:18:43,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:18:43,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:18:43,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:18:43,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:18:43,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:18:43,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:18:43,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:18:43,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:18:43,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:18:43,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:18:43,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:18:43,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:18:43,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:18:43,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:18:43,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:18:43,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:18:43,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:18:43,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:18:43,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:18:43,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:18:43,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:18:43,209 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:18:43,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:18:43,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:18:43,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:18:43,210 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:18:43,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:18:43,211 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:18:43,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:18:43,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:18:43,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:18:43,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:18:43,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:18:43,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:18:43,212 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:18:43,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:18:43,213 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:18:43,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:18:43,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:18:43,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:18:43,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:18:43,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:18:43,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:18:43,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:18:43,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:18:43,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:18:43,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:18:43,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:18:43,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:18:43,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:18:43,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:18:43,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:18:43,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:18:43,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:18:43,505 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:18:43,505 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:18:43,506 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test24-1.c [2020-07-07 11:18:43,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f602e0b/57b1f6cbd01644b6ba05bd66894b56c1/FLAG3a70a589b [2020-07-07 11:18:44,089 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:18:44,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test24-1.c [2020-07-07 11:18:44,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f602e0b/57b1f6cbd01644b6ba05bd66894b56c1/FLAG3a70a589b [2020-07-07 11:18:44,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f602e0b/57b1f6cbd01644b6ba05bd66894b56c1 [2020-07-07 11:18:44,518 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:18:44,521 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:18:44,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:18:44,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:18:44,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:18:44,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:18:44" (1/1) ... [2020-07-07 11:18:44,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462f8a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:44, skipping insertion in model container [2020-07-07 11:18:44,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:18:44" (1/1) ... [2020-07-07 11:18:44,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:18:44,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:18:44,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:18:44,728 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:18:44,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:18:44,830 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:18:44,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:44 WrapperNode [2020-07-07 11:18:44,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:18:44,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:18:44,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:18:44,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:18:44,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:44" (1/1) ... [2020-07-07 11:18:44,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:44" (1/1) ... [2020-07-07 11:18:44,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:44" (1/1) ... [2020-07-07 11:18:44,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:44" (1/1) ... [2020-07-07 11:18:44,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:44" (1/1) ... [2020-07-07 11:18:44,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:44" (1/1) ... [2020-07-07 11:18:44,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:44" (1/1) ... [2020-07-07 11:18:44,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:18:44,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:18:44,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:18:44,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:18:44,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:18:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:18:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:18:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-07-07 11:18:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:18:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:18:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:18:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-07 11:18:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 11:18:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:18:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 11:18:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 11:18:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 11:18:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:18:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:18:45,182 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:18:45,183 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 11:18:45,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:18:45 BoogieIcfgContainer [2020-07-07 11:18:45,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:18:45,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:18:45,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:18:45,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:18:45,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:18:44" (1/3) ... [2020-07-07 11:18:45,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68436778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:18:45, skipping insertion in model container [2020-07-07 11:18:45,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:44" (2/3) ... [2020-07-07 11:18:45,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68436778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:18:45, skipping insertion in model container [2020-07-07 11:18:45,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:18:45" (3/3) ... [2020-07-07 11:18:45,196 INFO L109 eAbstractionObserver]: Analyzing ICFG test24-1.c [2020-07-07 11:18:45,208 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:18:45,217 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:18:45,233 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:18:45,259 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:18:45,259 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:18:45,259 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:18:45,259 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:18:45,259 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:18:45,260 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:18:45,260 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:18:45,260 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:18:45,283 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-07 11:18:45,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-07 11:18:45,289 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:18:45,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:18:45,291 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:18:45,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:18:45,297 INFO L82 PathProgramCache]: Analyzing trace with hash 149844724, now seen corresponding path program 1 times [2020-07-07 11:18:45,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:18:45,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059957134] [2020-07-07 11:18:45,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:18:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:18:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:18:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:18:45,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:18:45,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059957134] [2020-07-07 11:18:45,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:18:45,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 11:18:45,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232818441] [2020-07-07 11:18:45,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:18:45,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:18:45,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:18:45,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 11:18:45,523 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2020-07-07 11:18:45,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:18:45,612 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2020-07-07 11:18:45,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:18:45,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-07-07 11:18:45,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:18:45,625 INFO L225 Difference]: With dead ends: 35 [2020-07-07 11:18:45,625 INFO L226 Difference]: Without dead ends: 17 [2020-07-07 11:18:45,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 11:18:45,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-07-07 11:18:45,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-07-07 11:18:45,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-07 11:18:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-07-07 11:18:45,669 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2020-07-07 11:18:45,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:18:45,670 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-07-07 11:18:45,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:18:45,671 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-07-07 11:18:45,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-07 11:18:45,672 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:18:45,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:18:45,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:18:45,673 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:18:45,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:18:45,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1249419983, now seen corresponding path program 1 times [2020-07-07 11:18:45,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:18:45,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453036806] [2020-07-07 11:18:45,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:18:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:18:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:18:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:18:45,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:18:45,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453036806] [2020-07-07 11:18:45,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:18:45,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:18:45,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905509209] [2020-07-07 11:18:45,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:18:45,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:18:45,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:18:45,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:18:45,830 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2020-07-07 11:18:45,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:18:45,907 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-07-07 11:18:45,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:18:45,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-07 11:18:45,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:18:45,909 INFO L225 Difference]: With dead ends: 27 [2020-07-07 11:18:45,909 INFO L226 Difference]: Without dead ends: 19 [2020-07-07 11:18:45,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:18:45,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-07 11:18:45,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-07 11:18:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-07 11:18:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-07-07 11:18:45,917 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 16 [2020-07-07 11:18:45,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:18:45,918 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-07-07 11:18:45,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:18:45,918 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-07 11:18:45,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-07 11:18:45,919 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:18:45,919 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:18:45,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:18:45,920 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:18:45,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:18:45,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1840889772, now seen corresponding path program 1 times [2020-07-07 11:18:45,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:18:45,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166601187] [2020-07-07 11:18:45,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:18:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:18:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:18:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:18:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:18:46,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166601187] [2020-07-07 11:18:46,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073030606] [2020-07-07 11:18:46,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:18:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:18:46,204 INFO L264 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-07 11:18:46,211 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:18:46,299 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2020-07-07 11:18:46,300 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:18:46,312 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:18:46,315 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-07 11:18:46,315 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:56, output treesize:52 [2020-07-07 11:18:56,570 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-07 11:18:56,573 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:18:56,574 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 21 [2020-07-07 11:18:56,576 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:18:56,586 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:18:56,588 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-07 11:18:56,588 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:59, output treesize:30 [2020-07-07 11:19:00,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:19:00,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:19:00,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-07-07 11:19:00,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138960778] [2020-07-07 11:19:00,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 11:19:00,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:19:00,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 11:19:00,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=75, Unknown=7, NotChecked=0, Total=110 [2020-07-07 11:19:00,731 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 11 states. [2020-07-07 11:19:02,878 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2020-07-07 11:19:03,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:19:03,105 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-07-07 11:19:03,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 11:19:03,105 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-07-07 11:19:03,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:19:03,106 INFO L225 Difference]: With dead ends: 29 [2020-07-07 11:19:03,106 INFO L226 Difference]: Without dead ends: 21 [2020-07-07 11:19:03,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=62, Invalid=141, Unknown=7, NotChecked=0, Total=210 [2020-07-07 11:19:03,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-07 11:19:03,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-07-07 11:19:03,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-07 11:19:03,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-07-07 11:19:03,119 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 18 [2020-07-07 11:19:03,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:19:03,120 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-07-07 11:19:03,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 11:19:03,120 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-07-07 11:19:03,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-07 11:19:03,121 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:19:03,121 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:19:03,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-07 11:19:03,322 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:19:03,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:19:03,323 INFO L82 PathProgramCache]: Analyzing trace with hash -488804505, now seen corresponding path program 2 times [2020-07-07 11:19:03,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:19:03,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257071188] [2020-07-07 11:19:03,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:19:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:19:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:19:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:19:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:19:03,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257071188] [2020-07-07 11:19:03,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247183430] [2020-07-07 11:19:03,518 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:19:03,561 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-07 11:19:03,561 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 11:19:03,562 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-07 11:19:03,564 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:19:03,591 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2020-07-07 11:19:03,591 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:19:03,600 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:19:03,600 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:19:03,601 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:49 [2020-07-07 11:19:03,713 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-07 11:19:03,717 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:19:03,718 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 21 [2020-07-07 11:19:03,720 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:19:03,730 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:19:03,733 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-07 11:19:03,733 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:57, output treesize:30 [2020-07-07 11:19:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:19:05,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:19:05,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2020-07-07 11:19:05,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465909211] [2020-07-07 11:19:05,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 11:19:05,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:19:05,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 11:19:05,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=97, Unknown=1, NotChecked=0, Total=132 [2020-07-07 11:19:05,859 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 12 states. [2020-07-07 11:19:06,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:19:06,146 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2020-07-07 11:19:06,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 11:19:06,147 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 20 [2020-07-07 11:19:06,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:19:06,148 INFO L225 Difference]: With dead ends: 31 [2020-07-07 11:19:06,149 INFO L226 Difference]: Without dead ends: 23 [2020-07-07 11:19:06,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=94, Invalid=211, Unknown=1, NotChecked=0, Total=306 [2020-07-07 11:19:06,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-07-07 11:19:06,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-07-07 11:19:06,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-07 11:19:06,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-07-07 11:19:06,157 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 20 [2020-07-07 11:19:06,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:19:06,157 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-07-07 11:19:06,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 11:19:06,158 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-07-07 11:19:06,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-07 11:19:06,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:19:06,158 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:19:06,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:19:06,362 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:19:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:19:06,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1647043486, now seen corresponding path program 3 times [2020-07-07 11:19:06,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:19:06,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775030861] [2020-07-07 11:19:06,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:19:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:19:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:19:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:19:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-07 11:19:06,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775030861] [2020-07-07 11:19:06,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813513580] [2020-07-07 11:19:06,682 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:19:06,736 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-07-07 11:19:06,737 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 11:19:06,738 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-07 11:19:06,740 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:19:06,751 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2020-07-07 11:19:06,751 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:19:06,765 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:19:06,765 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:19:06,766 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:34 [2020-07-07 11:19:09,000 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_main_~#ad1~0.base_BEFORE_CALL_1| Int) (|v_main_~#ad1~0.offset_BEFORE_CALL_1| Int) (main_~pa~0.offset Int)) (and (= 0 (mod (+ (* |v_main_~#ad1~0.offset_BEFORE_CALL_1| 7) main_~pa~0.offset) 8)) (let ((.cse0 (div (+ (* |v_main_~#ad1~0.offset_BEFORE_CALL_1| (- 1)) main_~pa~0.offset) 8))) (= .cse0 (select (select |c_#memory_int| |v_main_~#ad1~0.base_BEFORE_CALL_1|) (+ |v_main_~#ad1~0.offset_BEFORE_CALL_1| (* .cse0 8))))))) is different from true [2020-07-07 11:19:21,245 WARN L193 SmtUtils]: Spent 12.19 s on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2020-07-07 11:19:29,484 WARN L193 SmtUtils]: Spent 4.09 s on a formula simplification that was a NOOP. DAG size: 55 [2020-07-07 11:19:29,491 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:19:29,499 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:19:29,535 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-07 11:19:29,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:19:29,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2020-07-07 11:19:29,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744131569] [2020-07-07 11:19:29,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-07 11:19:29,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:19:29,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-07 11:19:29,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=262, Unknown=3, NotChecked=32, Total=342 [2020-07-07 11:19:29,544 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 19 states. [2020-07-07 11:19:33,988 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 32 [2020-07-07 11:20:02,364 WARN L193 SmtUtils]: Spent 28.33 s on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-07-07 11:20:02,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:20:02,480 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-07-07 11:20:02,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 11:20:02,481 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2020-07-07 11:20:02,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:20:02,481 INFO L225 Difference]: With dead ends: 23 [2020-07-07 11:20:02,481 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:20:02,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 55.6s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=4, NotChecked=44, Total=600 [2020-07-07 11:20:02,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:20:02,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:20:02,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:20:02,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:20:02,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-07-07 11:20:02,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:20:02,484 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:20:02,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-07 11:20:02,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:20:02,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:20:02,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:20:02,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:20:02,789 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:20:02,789 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-07 11:20:02,789 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:20:02,789 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:20:02,790 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 11:20:02,790 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:20:02,790 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:20:02,790 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-07-07 11:20:02,790 INFO L268 CegarLoopResult]: For program point L29-1(lines 29 31) no Hoare annotation was computed. [2020-07-07 11:20:02,790 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 38) no Hoare annotation was computed. [2020-07-07 11:20:02,790 INFO L268 CegarLoopResult]: For program point L21(lines 21 32) no Hoare annotation was computed. [2020-07-07 11:20:02,791 INFO L268 CegarLoopResult]: For program point L21-2(lines 21 32) no Hoare annotation was computed. [2020-07-07 11:20:02,791 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 38) no Hoare annotation was computed. [2020-07-07 11:20:02,791 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2020-07-07 11:20:02,791 INFO L264 CegarLoopResult]: At program point L30(lines 15 38) the Hoare annotation is: false [2020-07-07 11:20:02,791 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 14 38) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-07 11:20:02,791 INFO L268 CegarLoopResult]: For program point L26-1(lines 26 28) no Hoare annotation was computed. [2020-07-07 11:20:02,792 INFO L264 CegarLoopResult]: At program point L26-3(lines 26 28) the Hoare annotation is: (and (let ((.cse0 (div (+ main_~pa~0.offset (* |main_~#ad1~0.offset| (- 1))) 8))) (= (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* .cse0 8) |main_~#ad1~0.offset|)) .cse0)) (= 0 (mod (+ main_~pa~0.offset (* |main_~#ad1~0.offset| 7)) 8)) (<= main_~i~0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (= 0 |main_~#ad1~0.offset|) (= main_~pa~0.base |main_~#ad1~0.base|)) [2020-07-07 11:20:02,792 INFO L264 CegarLoopResult]: At program point L26-4(lines 26 28) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |main_~#ad1~0.base|))) (and (let ((.cse1 (div (+ main_~pa~0.offset (* |main_~#ad1~0.offset| (- 1))) 8))) (= (select .cse0 (+ (* .cse1 8) |main_~#ad1~0.offset|)) .cse1)) (= 0 (mod (+ main_~pa~0.offset (* |main_~#ad1~0.offset| 7)) 8)) (<= main_~i~0 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) (= 0 |main_~#ad1~0.offset|) (= main_~i~0 (select .cse0 (+ (* main_~i~0 8) |main_~#ad1~0.offset|))) (= main_~pa~0.base |main_~#ad1~0.base|))) [2020-07-07 11:20:02,792 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 9 12) the Hoare annotation is: true [2020-07-07 11:20:02,792 INFO L268 CegarLoopResult]: For program point checkFINAL(lines 9 12) no Hoare annotation was computed. [2020-07-07 11:20:02,792 INFO L268 CegarLoopResult]: For program point checkEXIT(lines 9 12) no Hoare annotation was computed. [2020-07-07 11:20:02,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:20:02,804 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:20:02,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:20:02,811 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:20:02,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:20:02 BoogieIcfgContainer [2020-07-07 11:20:02,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:20:02,816 INFO L168 Benchmark]: Toolchain (without parser) took 78294.61 ms. Allocated memory was 137.9 MB in the beginning and 246.4 MB in the end (delta: 108.5 MB). Free memory was 102.3 MB in the beginning and 215.3 MB in the end (delta: -113.0 MB). Peak memory consumption was 118.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:20:02,816 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 11:20:02,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.79 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 102.3 MB in the beginning and 180.2 MB in the end (delta: -77.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:20:02,818 INFO L168 Benchmark]: Boogie Preprocessor took 41.41 ms. Allocated memory is still 201.3 MB. Free memory was 180.2 MB in the beginning and 177.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-07-07 11:20:02,819 INFO L168 Benchmark]: RCFGBuilder took 314.88 ms. Allocated memory is still 201.3 MB. Free memory was 177.8 MB in the beginning and 163.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-07-07 11:20:02,820 INFO L168 Benchmark]: TraceAbstraction took 77624.87 ms. Allocated memory was 201.3 MB in the beginning and 246.4 MB in the end (delta: 45.1 MB). Free memory was 163.2 MB in the beginning and 215.3 MB in the end (delta: -52.1 MB). Peak memory consumption was 116.1 MB. Max. memory is 7.1 GB. [2020-07-07 11:20:02,824 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 308.79 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 102.3 MB in the beginning and 180.2 MB in the end (delta: -77.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.41 ms. Allocated memory is still 201.3 MB. Free memory was 180.2 MB in the beginning and 177.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 314.88 ms. Allocated memory is still 201.3 MB. Free memory was 177.8 MB in the beginning and 163.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 77624.87 ms. Allocated memory was 201.3 MB in the beginning and 246.4 MB in the end (delta: 45.1 MB). Free memory was 163.2 MB in the beginning and 215.3 MB in the end (delta: -52.1 MB). Peak memory consumption was 116.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 36]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant [2020-07-07 11:20:02,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:20:02,833 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:20:02,833 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:20:02,834 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((unknown-#memory_int-unknown[ad1][(pa + ad1 * -1) / 8 * 8 + ad1] == (pa + ad1 * -1) / 8 && 0 == (pa + ad1 * 7) % 8) && i <= unknown-#memory_int-unknown[pa][pa]) && 0 == ad1) && pa == ad1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 77.4s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 35.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 52 SDslu, 157 SDs, 0 SdLazy, 252 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 65 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 74.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 12 PreInvPairs, 16 NumberOfFragments, 120 HoareAnnotationTreeSize, 12 FomulaSimplifications, 374 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 87 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 40.4s InterpolantComputationTime, 151 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 143 ConstructedInterpolants, 10 QuantifiedInterpolants, 30532 SizeOfPredicates, 24 NumberOfNonLiveVariables, 265 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 13/40 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...