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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-multidimensional/init-non-constant-3-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:38,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:38,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:38,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:38,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:38,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:38,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:38,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:38,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:38,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:38,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:38,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:38,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:38,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:38,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:38,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:38,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:38,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:38,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:38,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:38,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:38,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:38,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:38,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:38,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:52:38,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:52:38,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:52:38,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:52:38,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:52:38,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:52:38,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:52:38,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:52:38,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:52:38,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:38,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:38,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:38,230 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 [2019-10-14 23:52:38,257 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:38,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:38,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:38,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:38,260 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:38,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:38,261 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:38,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:38,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:38,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:38,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:38,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:38,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:38,264 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:38,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:38,264 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:38,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:38,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:38,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:38,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:38,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:38,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:38,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:38,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:38,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:38,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:38,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:38,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:38,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-14 23:52:38,585 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:38,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:38,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:38,602 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:38,603 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:38,603 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/init-non-constant-3-u.c [2019-10-14 23:52:38,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10ad78d1/25c88ae435e94015b3b6eac865b2fbb0/FLAGb78bc4dea [2019-10-14 23:52:39,112 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:39,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/init-non-constant-3-u.c [2019-10-14 23:52:39,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10ad78d1/25c88ae435e94015b3b6eac865b2fbb0/FLAGb78bc4dea [2019-10-14 23:52:39,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e10ad78d1/25c88ae435e94015b3b6eac865b2fbb0 [2019-10-14 23:52:39,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:39,479 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:39,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:39,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:39,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:39,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:39" (1/1) ... [2019-10-14 23:52:39,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581c0b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:39, skipping insertion in model container [2019-10-14 23:52:39,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:39" (1/1) ... [2019-10-14 23:52:39,496 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:39,518 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:39,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:39,721 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:39,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:39,764 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:39,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:39 WrapperNode [2019-10-14 23:52:39,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:39,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:39,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:39,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:39,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:39" (1/1) ... [2019-10-14 23:52:39,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:39" (1/1) ... [2019-10-14 23:52:39,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:39" (1/1) ... [2019-10-14 23:52:39,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:39" (1/1) ... [2019-10-14 23:52:39,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:39" (1/1) ... [2019-10-14 23:52:39,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:39" (1/1) ... [2019-10-14 23:52:39,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:39" (1/1) ... [2019-10-14 23:52:39,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:39,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:39,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:39,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:39,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:39" (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 [2019-10-14 23:52:39,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:39,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:39,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:39,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-14 23:52:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:52:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:40,185 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:40,185 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-14 23:52:40,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:40 BoogieIcfgContainer [2019-10-14 23:52:40,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:40,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:40,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:40,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:40,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:39" (1/3) ... [2019-10-14 23:52:40,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9c6751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:40, skipping insertion in model container [2019-10-14 23:52:40,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:39" (2/3) ... [2019-10-14 23:52:40,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9c6751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:40, skipping insertion in model container [2019-10-14 23:52:40,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:40" (3/3) ... [2019-10-14 23:52:40,195 INFO L109 eAbstractionObserver]: Analyzing ICFG init-non-constant-3-u.c [2019-10-14 23:52:40,207 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:40,218 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:40,238 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:40,280 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:40,280 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:40,281 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:40,281 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:40,281 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:40,281 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:40,281 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:40,281 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:40,303 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-10-14 23:52:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-14 23:52:40,310 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:40,311 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:40,318 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:40,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:40,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1375180307, now seen corresponding path program 1 times [2019-10-14 23:52:40,331 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:40,331 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095125028] [2019-10-14 23:52:40,332 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:40,332 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:40,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:40,408 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-14 23:52:40,409 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412968430] [2019-10-14 23:52:40,409 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 [2019-10-14 23:52:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:40,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-14 23:52:40,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:40,503 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:40,522 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095125028] [2019-10-14 23:52:40,522 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-14 23:52:40,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412968430] [2019-10-14 23:52:40,524 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:40,524 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-14 23:52:40,524 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362431654] [2019-10-14 23:52:40,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:40,531 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:40,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:40,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:40,548 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-10-14 23:52:40,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:40,571 INFO L93 Difference]: Finished difference Result 54 states and 79 transitions. [2019-10-14 23:52:40,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:40,573 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-14 23:52:40,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:40,582 INFO L225 Difference]: With dead ends: 54 [2019-10-14 23:52:40,582 INFO L226 Difference]: Without dead ends: 25 [2019-10-14 23:52:40,586 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:40,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-14 23:52:40,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-14 23:52:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-14 23:52:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-10-14 23:52:40,624 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 15 [2019-10-14 23:52:40,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:40,625 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-10-14 23:52:40,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-10-14 23:52:40,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-14 23:52:40,626 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:40,626 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:40,829 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:40,829 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:40,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:40,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1308846031, now seen corresponding path program 1 times [2019-10-14 23:52:40,831 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:40,832 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514291322] [2019-10-14 23:52:40,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:40,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:40,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:40,847 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-14 23:52:40,847 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25909383] [2019-10-14 23:52:40,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-10-14 23:52:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:40,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:52:40,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:40,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:40,938 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:40,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:40,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514291322] [2019-10-14 23:52:40,961 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-14 23:52:40,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25909383] [2019-10-14 23:52:40,962 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:40,962 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-14 23:52:40,963 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675375782] [2019-10-14 23:52:40,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:52:40,966 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:40,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:52:40,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:52:40,967 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 4 states. [2019-10-14 23:52:41,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:41,047 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2019-10-14 23:52:41,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:52:41,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-10-14 23:52:41,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:41,049 INFO L225 Difference]: With dead ends: 45 [2019-10-14 23:52:41,049 INFO L226 Difference]: Without dead ends: 31 [2019-10-14 23:52:41,050 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:52:41,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-14 23:52:41,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-14 23:52:41,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-14 23:52:41,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2019-10-14 23:52:41,059 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 15 [2019-10-14 23:52:41,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:41,059 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2019-10-14 23:52:41,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:52:41,059 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2019-10-14 23:52:41,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-14 23:52:41,060 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:41,061 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:41,264 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:41,265 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:41,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:41,265 INFO L82 PathProgramCache]: Analyzing trace with hash -932040465, now seen corresponding path program 1 times [2019-10-14 23:52:41,266 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:41,266 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304412736] [2019-10-14 23:52:41,266 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:41,266 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:41,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:41,283 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-14 23:52:41,284 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [897689514] [2019-10-14 23:52:41,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-10-14 23:52:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:41,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:52:41,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:41,380 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-14 23:52:41,380 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:41,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-14 23:52:41,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304412736] [2019-10-14 23:52:41,405 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-14 23:52:41,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897689514] [2019-10-14 23:52:41,405 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:41,406 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-14 23:52:41,406 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558695692] [2019-10-14 23:52:41,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:52:41,407 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:41,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:52:41,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:52:41,409 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 6 states. [2019-10-14 23:52:41,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:41,554 INFO L93 Difference]: Finished difference Result 67 states and 89 transitions. [2019-10-14 23:52:41,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:52:41,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-10-14 23:52:41,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:41,557 INFO L225 Difference]: With dead ends: 67 [2019-10-14 23:52:41,558 INFO L226 Difference]: Without dead ends: 46 [2019-10-14 23:52:41,558 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:52:41,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-10-14 23:52:41,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2019-10-14 23:52:41,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-14 23:52:41,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2019-10-14 23:52:41,573 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 21 [2019-10-14 23:52:41,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:41,574 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2019-10-14 23:52:41,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:52:41,574 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2019-10-14 23:52:41,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-14 23:52:41,575 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:41,575 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:41,780 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:41,780 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:41,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:41,781 INFO L82 PathProgramCache]: Analyzing trace with hash 540435247, now seen corresponding path program 1 times [2019-10-14 23:52:41,781 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:41,782 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841429570] [2019-10-14 23:52:41,782 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:41,783 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:41,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:41,791 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-14 23:52:41,791 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224275815] [2019-10-14 23:52:41,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:41,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:52:41,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:41,867 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-14 23:52:41,867 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:41,900 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-14 23:52:41,900 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841429570] [2019-10-14 23:52:41,900 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-14 23:52:41,901 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224275815] [2019-10-14 23:52:41,901 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:41,901 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-14 23:52:41,901 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314750202] [2019-10-14 23:52:41,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:52:41,902 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:41,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:52:41,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:52:41,903 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand 6 states. [2019-10-14 23:52:42,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:42,012 INFO L93 Difference]: Finished difference Result 98 states and 133 transitions. [2019-10-14 23:52:42,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:52:42,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-10-14 23:52:42,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:42,014 INFO L225 Difference]: With dead ends: 98 [2019-10-14 23:52:42,015 INFO L226 Difference]: Without dead ends: 62 [2019-10-14 23:52:42,015 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:52:42,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-10-14 23:52:42,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2019-10-14 23:52:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-10-14 23:52:42,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 74 transitions. [2019-10-14 23:52:42,031 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 74 transitions. Word has length 33 [2019-10-14 23:52:42,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:42,032 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 74 transitions. [2019-10-14 23:52:42,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:52:42,032 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 74 transitions. [2019-10-14 23:52:42,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-14 23:52:42,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:42,033 INFO L380 BasicCegarLoop]: trace histogram [8, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:42,238 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:42,238 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:42,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:42,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1893170001, now seen corresponding path program 1 times [2019-10-14 23:52:42,239 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:42,239 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450370639] [2019-10-14 23:52:42,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:42,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:42,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:42,248 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-14 23:52:42,248 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045776958] [2019-10-14 23:52:42,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:42,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-14 23:52:42,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:42,341 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-14 23:52:42,341 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:42,390 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-14 23:52:42,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450370639] [2019-10-14 23:52:42,391 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-14 23:52:42,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045776958] [2019-10-14 23:52:42,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [36178792] [2019-10-14 23:52:42,397 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 42 [2019-10-14 23:52:42,440 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:52:42,441 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:52:42,504 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:52:42,505 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 16 root evaluator evaluations with a maximum evaluation depth of 0. Performed 16 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 21 variables. [2019-10-14 23:52:42,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:42,509 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:52:42,552 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-14 23:52:42,552 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:52:42,554 INFO L553 sIntCurrentIteration]: We unified 40 AI predicates to 40 [2019-10-14 23:52:42,554 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:52:42,555 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:52:42,558 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 6] total 10 [2019-10-14 23:52:42,559 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433536533] [2019-10-14 23:52:42,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:42,563 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:42,563 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:52:42,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:42,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:42,564 INFO L87 Difference]: Start difference. First operand 61 states and 74 transitions. Second operand 2 states. [2019-10-14 23:52:42,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:42,571 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2019-10-14 23:52:42,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:42,571 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 41 [2019-10-14 23:52:42,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:42,572 INFO L225 Difference]: With dead ends: 61 [2019-10-14 23:52:42,572 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:52:42,573 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:42,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:52:42,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:52:42,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:52:42,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:52:42,575 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2019-10-14 23:52:42,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:42,575 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:52:42,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:42,575 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:52:42,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:52:42,778 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:42,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:52:42,814 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:42,814 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:42,815 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:42,815 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:42,815 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:52:42,815 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:42,815 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:42,815 INFO L439 ceAbstractionStarter]: At program point L27-2(lines 27 30) the Hoare annotation is: false [2019-10-14 23:52:42,815 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 56) no Hoare annotation was computed. [2019-10-14 23:52:42,815 INFO L443 ceAbstractionStarter]: For program point L27-3(lines 27 30) no Hoare annotation was computed. [2019-10-14 23:52:42,816 INFO L439 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: false [2019-10-14 23:52:42,816 INFO L443 ceAbstractionStarter]: For program point L48-1(line 48) no Hoare annotation was computed. [2019-10-14 23:52:42,816 INFO L439 ceAbstractionStarter]: At program point L45-2(lines 45 52) the Hoare annotation is: false [2019-10-14 23:52:42,816 INFO L443 ceAbstractionStarter]: For program point L45-3(lines 45 52) no Hoare annotation was computed. [2019-10-14 23:52:42,816 INFO L439 ceAbstractionStarter]: At program point L25-2(lines 25 32) the Hoare annotation is: false [2019-10-14 23:52:42,817 INFO L443 ceAbstractionStarter]: For program point L25-3(lines 25 32) no Hoare annotation was computed. [2019-10-14 23:52:42,817 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 56) no Hoare annotation was computed. [2019-10-14 23:52:42,817 INFO L439 ceAbstractionStarter]: At program point L42-2(lines 42 54) the Hoare annotation is: false [2019-10-14 23:52:42,817 INFO L443 ceAbstractionStarter]: For program point L42-3(lines 42 54) no Hoare annotation was computed. [2019-10-14 23:52:42,817 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 56) the Hoare annotation is: true [2019-10-14 23:52:42,817 INFO L439 ceAbstractionStarter]: At program point L22-2(lines 22 34) the Hoare annotation is: false [2019-10-14 23:52:42,817 INFO L443 ceAbstractionStarter]: For program point L22-3(lines 22 34) no Hoare annotation was computed. [2019-10-14 23:52:42,818 INFO L439 ceAbstractionStarter]: At program point L47-2(lines 47 50) the Hoare annotation is: false [2019-10-14 23:52:42,818 INFO L443 ceAbstractionStarter]: For program point L47-3(lines 47 50) no Hoare annotation was computed. [2019-10-14 23:52:42,818 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-14 23:52:42,818 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:52:42,818 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-14 23:52:42,818 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-14 23:52:42,819 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-14 23:52:42,819 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:52:42,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:42 BoogieIcfgContainer [2019-10-14 23:52:42,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:52:42,836 INFO L168 Benchmark]: Toolchain (without parser) took 3352.97 ms. Allocated memory was 136.8 MB in the beginning and 229.1 MB in the end (delta: 92.3 MB). Free memory was 100.8 MB in the beginning and 136.6 MB in the end (delta: -35.8 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:42,845 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-14 23:52:42,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.45 ms. Allocated memory is still 136.8 MB. Free memory was 100.6 MB in the beginning and 89.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:42,846 INFO L168 Benchmark]: Boogie Preprocessor took 127.83 ms. Allocated memory was 136.8 MB in the beginning and 199.2 MB in the end (delta: 62.4 MB). Free memory was 89.8 MB in the beginning and 176.7 MB in the end (delta: -86.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:42,848 INFO L168 Benchmark]: RCFGBuilder took 293.13 ms. Allocated memory is still 199.2 MB. Free memory was 176.7 MB in the beginning and 161.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:42,849 INFO L168 Benchmark]: TraceAbstraction took 2642.33 ms. Allocated memory was 199.2 MB in the beginning and 229.1 MB in the end (delta: 29.9 MB). Free memory was 161.4 MB in the beginning and 136.6 MB in the end (delta: 24.8 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:42,857 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 285.45 ms. Allocated memory is still 136.8 MB. Free memory was 100.6 MB in the beginning and 89.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.83 ms. Allocated memory was 136.8 MB in the beginning and 199.2 MB in the end (delta: 62.4 MB). Free memory was 89.8 MB in the beginning and 176.7 MB in the end (delta: -86.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 293.13 ms. Allocated memory is still 199.2 MB. Free memory was 176.7 MB in the beginning and 161.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2642.33 ms. Allocated memory was 199.2 MB in the beginning and 229.1 MB in the end (delta: 29.9 MB). Free memory was 161.4 MB in the beginning and 136.6 MB in the end (delta: 24.8 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 8, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 96 SDtfs, 114 SDslu, 82 SDs, 0 SdLazy, 85 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 20 PreInvPairs, 20 NumberOfFragments, 12 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 240 ConstructedInterpolants, 0 QuantifiedInterpolants, 9136 SizeOfPredicates, 8 NumberOfNonLiveVariables, 488 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 248/254 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 112, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.95625, AVG_VARS_REMOVED_DURING_WEAKENING: 0.65, AVG_WEAKENED_CONJUNCTS: 0.15, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...