java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline_WitnessPrinter.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/loops/matrix_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 11:25:18,213 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:25:18,216 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:25:18,235 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:25:18,235 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:25:18,236 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:25:18,238 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:25:18,239 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:25:18,241 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:25:18,242 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:25:18,243 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:25:18,243 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:25:18,244 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:25:18,245 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:25:18,246 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:25:18,247 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:25:18,248 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:25:18,250 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:25:18,252 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:25:18,254 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:25:18,255 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:25:18,256 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:25:18,259 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 11:25:18,259 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 11:25:18,259 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 11:25:18,260 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 11:25:18,261 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 11:25:18,262 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 11:25:18,263 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 11:25:18,264 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 11:25:18,264 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 11:25:18,265 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 11:25:18,265 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 11:25:18,266 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 11:25:18,267 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 11:25:18,268 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 11:25:18,268 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 11:25:18,291 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:25:18,291 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:25:18,292 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:25:18,292 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:25:18,293 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:25:18,293 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:25:18,294 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:25:18,294 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:25:18,294 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:25:18,294 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:25:18,294 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:25:18,295 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:25:18,295 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:25:18,295 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:25:18,295 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 11:25:18,295 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 11:25:18,296 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:25:18,296 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:25:18,296 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:25:18,296 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:25:18,296 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:25:18,297 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:25:18,297 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:25:18,297 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:25:18,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:25:18,298 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:25:18,298 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:25:18,298 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:25:18,298 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 11:25:18,298 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:25:18,299 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 11:25:18,299 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 11:25:18,299 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 11:25:18,356 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:25:18,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:25:18,380 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:25:18,381 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:25:18,382 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:25:18,382 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix_true-unreach-call_true-termination.i [2018-11-23 11:25:18,467 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f71e58be/b704d1c935884f199367934336f494c1/FLAGd1ed1a3ad [2018-11-23 11:25:18,897 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:25:18,898 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix_true-unreach-call_true-termination.i [2018-11-23 11:25:18,906 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f71e58be/b704d1c935884f199367934336f494c1/FLAGd1ed1a3ad [2018-11-23 11:25:19,252 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f71e58be/b704d1c935884f199367934336f494c1 [2018-11-23 11:25:19,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:25:19,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:25:19,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:25:19,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:25:19,270 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:25:19,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:19" (1/1) ... [2018-11-23 11:25:19,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536a37b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19, skipping insertion in model container [2018-11-23 11:25:19,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:19" (1/1) ... [2018-11-23 11:25:19,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:25:19,313 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:25:19,585 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:25:19,593 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:25:19,632 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:25:19,661 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:25:19,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19 WrapperNode [2018-11-23 11:25:19,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:25:19,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:25:19,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:25:19,664 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:25:19,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19" (1/1) ... [2018-11-23 11:25:19,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19" (1/1) ... [2018-11-23 11:25:19,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:25:19,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:25:19,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:25:19,693 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:25:19,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19" (1/1) ... [2018-11-23 11:25:19,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19" (1/1) ... [2018-11-23 11:25:19,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19" (1/1) ... [2018-11-23 11:25:19,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19" (1/1) ... [2018-11-23 11:25:19,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19" (1/1) ... [2018-11-23 11:25:19,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19" (1/1) ... [2018-11-23 11:25:19,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19" (1/1) ... [2018-11-23 11:25:19,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:25:19,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:25:19,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:25:19,730 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:25:19,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19" (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 [2018-11-23 11:25:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 11:25:19,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 11:25:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 11:25:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 11:25:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:25:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:25:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 11:25:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 11:25:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 11:25:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 11:25:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 11:25:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 11:25:20,411 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:25:20,412 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 11:25:20,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:20 BoogieIcfgContainer [2018-11-23 11:25:20,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:25:20,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:25:20,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:25:20,416 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:25:20,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:25:19" (1/3) ... [2018-11-23 11:25:20,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c45fc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:20, skipping insertion in model container [2018-11-23 11:25:20,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:19" (2/3) ... [2018-11-23 11:25:20,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c45fc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:20, skipping insertion in model container [2018-11-23 11:25:20,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:20" (3/3) ... [2018-11-23 11:25:20,420 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix_true-unreach-call_true-termination.i [2018-11-23 11:25:20,430 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:25:20,438 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 11:25:20,457 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 11:25:20,491 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:25:20,492 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:25:20,492 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:25:20,492 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:25:20,493 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:25:20,493 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:25:20,493 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:25:20,493 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:25:20,493 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:25:20,510 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-23 11:25:20,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 11:25:20,517 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:25:20,518 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:25:20,521 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:25:20,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:25:20,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1330517862, now seen corresponding path program 1 times [2018-11-23 11:25:20,532 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:25:20,533 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 11:25:20,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:25:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:25:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:25:20,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:25:20,743 INFO L256 TraceCheckUtils]: 0: Hoare triple {27#true} call ULTIMATE.init(); {27#true} is VALID [2018-11-23 11:25:20,747 INFO L273 TraceCheckUtils]: 1: Hoare triple {27#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {27#true} is VALID [2018-11-23 11:25:20,747 INFO L273 TraceCheckUtils]: 2: Hoare triple {27#true} assume true; {27#true} is VALID [2018-11-23 11:25:20,748 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {27#true} {27#true} #52#return; {27#true} is VALID [2018-11-23 11:25:20,748 INFO L256 TraceCheckUtils]: 4: Hoare triple {27#true} call #t~ret7 := main(); {27#true} is VALID [2018-11-23 11:25:20,748 INFO L273 TraceCheckUtils]: 5: Hoare triple {27#true} ~N_LIN~0 := 1bv32;~N_COL~0 := 1bv32;havoc ~j~0;havoc ~k~0;call ~#matriz~0.base, ~#matriz~0.offset := #Ultimate.alloc(~bvmul32(~bvmul32(4bv32, ~N_LIN~0), ~N_COL~0));havoc ~maior~0;~maior~0 := #t~nondet0;havoc #t~nondet0;~j~0 := 0bv32; {27#true} is VALID [2018-11-23 11:25:20,753 INFO L273 TraceCheckUtils]: 6: Hoare triple {27#true} assume !true; {28#false} is VALID [2018-11-23 11:25:20,754 INFO L273 TraceCheckUtils]: 7: Hoare triple {28#false} call #t~mem6 := read~intINTTYPE4(~#matriz~0.base, ~#matriz~0.offset, 4bv32); {28#false} is VALID [2018-11-23 11:25:20,754 INFO L256 TraceCheckUtils]: 8: Hoare triple {28#false} call __VERIFIER_assert((if ~bvsle32(#t~mem6, ~maior~0) then 1bv32 else 0bv32)); {28#false} is VALID [2018-11-23 11:25:20,754 INFO L273 TraceCheckUtils]: 9: Hoare triple {28#false} ~cond := #in~cond; {28#false} is VALID [2018-11-23 11:25:20,755 INFO L273 TraceCheckUtils]: 10: Hoare triple {28#false} assume 0bv32 == ~cond; {28#false} is VALID [2018-11-23 11:25:20,755 INFO L273 TraceCheckUtils]: 11: Hoare triple {28#false} assume !false; {28#false} is VALID [2018-11-23 11:25:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 11:25:20,758 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:25:20,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:25:20,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 11:25:20,767 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-23 11:25:20,770 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:25:20,774 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-23 11:25:20,920 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:25:20,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 11:25:20,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 11:25:20,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 11:25:20,935 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-11-23 11:25:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:25:21,141 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2018-11-23 11:25:21,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 11:25:21,141 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-23 11:25:21,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:25:21,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 11:25:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 53 transitions. [2018-11-23 11:25:21,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 11:25:21,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 53 transitions. [2018-11-23 11:25:21,158 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 53 transitions. [2018-11-23 11:25:21,455 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:25:21,465 INFO L225 Difference]: With dead ends: 42 [2018-11-23 11:25:21,465 INFO L226 Difference]: Without dead ends: 17 [2018-11-23 11:25:21,469 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 11:25:21,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-23 11:25:21,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-23 11:25:21,521 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:25:21,521 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand 17 states. [2018-11-23 11:25:21,522 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 17 states. [2018-11-23 11:25:21,522 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 17 states. [2018-11-23 11:25:21,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:25:21,525 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-11-23 11:25:21,526 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-23 11:25:21,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:25:21,526 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:25:21,526 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 17 states. [2018-11-23 11:25:21,527 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 17 states. [2018-11-23 11:25:21,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:25:21,530 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-11-23 11:25:21,530 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-23 11:25:21,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:25:21,531 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:25:21,531 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:25:21,532 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:25:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 11:25:21,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-23 11:25:21,536 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2018-11-23 11:25:21,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:25:21,536 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-23 11:25:21,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 11:25:21,537 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-23 11:25:21,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 11:25:21,538 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:25:21,538 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:25:21,538 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:25:21,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:25:21,539 INFO L82 PathProgramCache]: Analyzing trace with hash 672047389, now seen corresponding path program 1 times [2018-11-23 11:25:21,539 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:25:21,539 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 11:25:21,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:25:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:25:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:25:21,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:25:21,763 INFO L256 TraceCheckUtils]: 0: Hoare triple {177#true} call ULTIMATE.init(); {177#true} is VALID [2018-11-23 11:25:21,764 INFO L273 TraceCheckUtils]: 1: Hoare triple {177#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {177#true} is VALID [2018-11-23 11:25:21,764 INFO L273 TraceCheckUtils]: 2: Hoare triple {177#true} assume true; {177#true} is VALID [2018-11-23 11:25:21,764 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {177#true} {177#true} #52#return; {177#true} is VALID [2018-11-23 11:25:21,765 INFO L256 TraceCheckUtils]: 4: Hoare triple {177#true} call #t~ret7 := main(); {177#true} is VALID [2018-11-23 11:25:21,767 INFO L273 TraceCheckUtils]: 5: Hoare triple {177#true} ~N_LIN~0 := 1bv32;~N_COL~0 := 1bv32;havoc ~j~0;havoc ~k~0;call ~#matriz~0.base, ~#matriz~0.offset := #Ultimate.alloc(~bvmul32(~bvmul32(4bv32, ~N_LIN~0), ~N_COL~0));havoc ~maior~0;~maior~0 := #t~nondet0;havoc #t~nondet0;~j~0 := 0bv32; {197#(and (= main_~j~0 (_ bv0 32)) (= (_ bv1 32) main_~N_COL~0))} is VALID [2018-11-23 11:25:21,775 INFO L273 TraceCheckUtils]: 6: Hoare triple {197#(and (= main_~j~0 (_ bv0 32)) (= (_ bv1 32) main_~N_COL~0))} assume !~bvult32(~j~0, ~N_COL~0); {178#false} is VALID [2018-11-23 11:25:21,776 INFO L273 TraceCheckUtils]: 7: Hoare triple {178#false} call #t~mem6 := read~intINTTYPE4(~#matriz~0.base, ~#matriz~0.offset, 4bv32); {178#false} is VALID [2018-11-23 11:25:21,776 INFO L256 TraceCheckUtils]: 8: Hoare triple {178#false} call __VERIFIER_assert((if ~bvsle32(#t~mem6, ~maior~0) then 1bv32 else 0bv32)); {178#false} is VALID [2018-11-23 11:25:21,776 INFO L273 TraceCheckUtils]: 9: Hoare triple {178#false} ~cond := #in~cond; {178#false} is VALID [2018-11-23 11:25:21,777 INFO L273 TraceCheckUtils]: 10: Hoare triple {178#false} assume 0bv32 == ~cond; {178#false} is VALID [2018-11-23 11:25:21,777 INFO L273 TraceCheckUtils]: 11: Hoare triple {178#false} assume !false; {178#false} is VALID [2018-11-23 11:25:21,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 11:25:21,779 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:25:21,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:25:21,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 11:25:21,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-23 11:25:21,783 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:25:21,785 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 11:25:21,812 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:25:21,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 11:25:21,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 11:25:21,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 11:25:21,814 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-11-23 11:25:22,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:25:22,022 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2018-11-23 11:25:22,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 11:25:22,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-23 11:25:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:25:22,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 11:25:22,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2018-11-23 11:25:22,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 11:25:22,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2018-11-23 11:25:22,027 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 32 transitions. [2018-11-23 11:25:22,307 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:25:22,309 INFO L225 Difference]: With dead ends: 28 [2018-11-23 11:25:22,310 INFO L226 Difference]: Without dead ends: 22 [2018-11-23 11:25:22,311 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 11:25:22,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-23 11:25:22,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2018-11-23 11:25:22,432 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:25:22,433 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand 18 states. [2018-11-23 11:25:22,433 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 18 states. [2018-11-23 11:25:22,433 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 18 states. [2018-11-23 11:25:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:25:22,436 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2018-11-23 11:25:22,437 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-23 11:25:22,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:25:22,437 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:25:22,437 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 22 states. [2018-11-23 11:25:22,437 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 22 states. [2018-11-23 11:25:22,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:25:22,440 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2018-11-23 11:25:22,440 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-23 11:25:22,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:25:22,441 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:25:22,441 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:25:22,441 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:25:22,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 11:25:22,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-23 11:25:22,443 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2018-11-23 11:25:22,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:25:22,443 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-23 11:25:22,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 11:25:22,444 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-23 11:25:22,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 11:25:22,444 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:25:22,445 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:25:22,445 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:25:22,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:25:22,445 INFO L82 PathProgramCache]: Analyzing trace with hash -830834987, now seen corresponding path program 1 times [2018-11-23 11:25:22,446 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:25:22,446 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 11:25:22,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:25:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:25:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:25:22,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:25:22,681 INFO L256 TraceCheckUtils]: 0: Hoare triple {326#true} call ULTIMATE.init(); {326#true} is VALID [2018-11-23 11:25:22,681 INFO L273 TraceCheckUtils]: 1: Hoare triple {326#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {326#true} is VALID [2018-11-23 11:25:22,682 INFO L273 TraceCheckUtils]: 2: Hoare triple {326#true} assume true; {326#true} is VALID [2018-11-23 11:25:22,682 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {326#true} {326#true} #52#return; {326#true} is VALID [2018-11-23 11:25:22,683 INFO L256 TraceCheckUtils]: 4: Hoare triple {326#true} call #t~ret7 := main(); {326#true} is VALID [2018-11-23 11:25:22,683 INFO L273 TraceCheckUtils]: 5: Hoare triple {326#true} ~N_LIN~0 := 1bv32;~N_COL~0 := 1bv32;havoc ~j~0;havoc ~k~0;call ~#matriz~0.base, ~#matriz~0.offset := #Ultimate.alloc(~bvmul32(~bvmul32(4bv32, ~N_LIN~0), ~N_COL~0));havoc ~maior~0;~maior~0 := #t~nondet0;havoc #t~nondet0;~j~0 := 0bv32; {346#(= (_ bv1 32) main_~N_LIN~0)} is VALID [2018-11-23 11:25:22,685 INFO L273 TraceCheckUtils]: 6: Hoare triple {346#(= (_ bv1 32) main_~N_LIN~0)} assume !!~bvult32(~j~0, ~N_COL~0);~k~0 := 0bv32; {350#(and (= (_ bv1 32) main_~N_LIN~0) (= main_~k~0 (_ bv0 32)))} is VALID [2018-11-23 11:25:22,687 INFO L273 TraceCheckUtils]: 7: Hoare triple {350#(and (= (_ bv1 32) main_~N_LIN~0) (= main_~k~0 (_ bv0 32)))} assume !~bvult32(~k~0, ~N_LIN~0); {327#false} is VALID [2018-11-23 11:25:22,688 INFO L273 TraceCheckUtils]: 8: Hoare triple {327#false} #t~post1 := ~j~0;~j~0 := ~bvadd32(1bv32, #t~post1);havoc #t~post1; {327#false} is VALID [2018-11-23 11:25:22,688 INFO L273 TraceCheckUtils]: 9: Hoare triple {327#false} assume !~bvult32(~j~0, ~N_COL~0); {327#false} is VALID [2018-11-23 11:25:22,688 INFO L273 TraceCheckUtils]: 10: Hoare triple {327#false} call #t~mem6 := read~intINTTYPE4(~#matriz~0.base, ~#matriz~0.offset, 4bv32); {327#false} is VALID [2018-11-23 11:25:22,688 INFO L256 TraceCheckUtils]: 11: Hoare triple {327#false} call __VERIFIER_assert((if ~bvsle32(#t~mem6, ~maior~0) then 1bv32 else 0bv32)); {327#false} is VALID [2018-11-23 11:25:22,689 INFO L273 TraceCheckUtils]: 12: Hoare triple {327#false} ~cond := #in~cond; {327#false} is VALID [2018-11-23 11:25:22,689 INFO L273 TraceCheckUtils]: 13: Hoare triple {327#false} assume 0bv32 == ~cond; {327#false} is VALID [2018-11-23 11:25:22,689 INFO L273 TraceCheckUtils]: 14: Hoare triple {327#false} assume !false; {327#false} is VALID [2018-11-23 11:25:22,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 11:25:22,691 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:25:22,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:25:22,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 11:25:22,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-23 11:25:22,694 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:25:22,694 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-23 11:25:22,732 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:25:22,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 11:25:22,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 11:25:22,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 11:25:22,734 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2018-11-23 11:25:22,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:25:22,974 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-11-23 11:25:22,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 11:25:22,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-23 11:25:22,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:25:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 11:25:22,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2018-11-23 11:25:22,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 11:25:22,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2018-11-23 11:25:22,980 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 34 transitions. [2018-11-23 11:25:23,085 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:25:23,087 INFO L225 Difference]: With dead ends: 30 [2018-11-23 11:25:23,088 INFO L226 Difference]: Without dead ends: 19 [2018-11-23 11:25:23,088 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 11:25:23,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-23 11:25:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-23 11:25:23,107 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:25:23,107 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 19 states. [2018-11-23 11:25:23,108 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2018-11-23 11:25:23,108 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2018-11-23 11:25:23,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:25:23,110 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-23 11:25:23,110 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-23 11:25:23,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:25:23,111 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:25:23,111 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2018-11-23 11:25:23,111 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2018-11-23 11:25:23,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:25:23,113 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-23 11:25:23,113 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-23 11:25:23,114 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:25:23,114 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:25:23,114 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:25:23,114 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:25:23,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-23 11:25:23,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-23 11:25:23,116 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2018-11-23 11:25:23,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:25:23,116 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-23 11:25:23,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 11:25:23,117 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-23 11:25:23,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 11:25:23,117 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:25:23,118 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:25:23,118 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:25:23,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:25:23,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1529445450, now seen corresponding path program 1 times [2018-11-23 11:25:23,119 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:25:23,119 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 11:25:23,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:25:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:25:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:25:23,249 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:25:23,612 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 11:25:23,614 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: zero is neutral element of plus operator at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:95) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.lambda$0(UltimateNormalFormUtils.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker$MyWalker.walk(SubtermPropertyChecker.java:63) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker.isPropertySatisfied(SubtermPropertyChecker.java:121) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.respectsUltimateNormalForm(UltimateNormalFormUtils.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.pqe.XnfDer.derSimple(XnfDer.java:134) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.pqe.XnfDer.tryToEliminate(XnfDer.java:97) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.QuantifierPusher.applyEliminationTechniques(QuantifierPusher.java:302) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:215) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPush(QuantifierPusher.java:134) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:107) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$LiveVariablesPostprocessorForward.postprocess(TraceCheckSpWp.java:533) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 11:25:23,619 INFO L168 Benchmark]: Toolchain (without parser) took 4355.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.7 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -595.4 MB). Peak memory consumption was 131.3 MB. Max. memory is 7.1 GB. [2018-11-23 11:25:23,621 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 11:25:23,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-23 11:25:23,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.02 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 11:25:23,623 INFO L168 Benchmark]: Boogie Preprocessor took 37.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 11:25:23,624 INFO L168 Benchmark]: RCFGBuilder took 682.53 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -760.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2018-11-23 11:25:23,625 INFO L168 Benchmark]: TraceAbstraction took 3204.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 154.8 MB). Peak memory consumption was 154.8 MB. Max. memory is 7.1 GB. [2018-11-23 11:25:23,629 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 397.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 29.02 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 682.53 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -760.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3204.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 154.8 MB). Peak memory consumption was 154.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: zero is neutral element of plus operator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: zero is neutral element of plus operator: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:95) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...