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/ldv-regression/test19_true-unreach-call_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 11:07:46,217 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:07:46,222 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:07:46,239 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:07:46,239 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:07:46,240 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:07:46,242 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:07:46,245 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:07:46,247 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:07:46,249 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:07:46,250 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:07:46,250 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:07:46,252 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:07:46,257 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:07:46,258 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:07:46,258 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:07:46,263 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:07:46,267 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:07:46,272 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:07:46,273 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:07:46,274 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:07:46,275 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:07:46,277 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 11:07:46,277 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 11:07:46,278 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 11:07:46,279 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 11:07:46,279 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 11:07:46,280 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 11:07:46,281 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 11:07:46,282 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 11:07:46,282 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 11:07:46,283 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 11:07:46,283 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 11:07:46,283 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 11:07:46,284 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 11:07:46,284 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 11:07:46,285 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 11:07:46,300 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:07:46,301 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:07:46,302 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:07:46,302 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:07:46,302 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:07:46,303 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:07:46,303 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:07:46,303 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:07:46,303 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:07:46,303 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:07:46,304 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:07:46,304 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:07:46,304 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:07:46,304 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:07:46,304 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 11:07:46,305 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 11:07:46,305 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:07:46,305 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:07:46,305 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:07:46,305 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:07:46,306 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:07:46,306 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:07:46,306 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:07:46,306 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:07:46,306 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:07:46,307 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:07:46,307 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:07:46,307 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:07:46,307 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 11:07:46,307 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:07:46,307 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 11:07:46,308 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 11:07:46,308 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 11:07:46,364 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:07:46,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:07:46,383 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:07:46,385 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:07:46,385 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:07:46,386 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test19_true-unreach-call_true-termination.c [2018-11-23 11:07:46,457 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/222962898/81630b812a2e4329a7e34750aa5a5f2d/FLAGd4ec91618 [2018-11-23 11:07:46,950 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:07:46,950 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test19_true-unreach-call_true-termination.c [2018-11-23 11:07:46,956 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/222962898/81630b812a2e4329a7e34750aa5a5f2d/FLAGd4ec91618 [2018-11-23 11:07:47,291 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/222962898/81630b812a2e4329a7e34750aa5a5f2d [2018-11-23 11:07:47,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:07:47,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:07:47,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:07:47,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:07:47,309 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:07:47,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:47" (1/1) ... [2018-11-23 11:07:47,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7098ea53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47, skipping insertion in model container [2018-11-23 11:07:47,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:47" (1/1) ... [2018-11-23 11:07:47,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:07:47,350 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:07:47,570 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:07:47,591 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:07:47,618 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:07:47,643 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:07:47,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47 WrapperNode [2018-11-23 11:07:47,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:07:47,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:07:47,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:07:47,645 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:07:47,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47" (1/1) ... [2018-11-23 11:07:47,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47" (1/1) ... [2018-11-23 11:07:47,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:07:47,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:07:47,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:07:47,678 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:07:47,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47" (1/1) ... [2018-11-23 11:07:47,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47" (1/1) ... [2018-11-23 11:07:47,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47" (1/1) ... [2018-11-23 11:07:47,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47" (1/1) ... [2018-11-23 11:07:47,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47" (1/1) ... [2018-11-23 11:07:47,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47" (1/1) ... [2018-11-23 11:07:47,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47" (1/1) ... [2018-11-23 11:07:47,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:07:47,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:07:47,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:07:47,727 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:07:47,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47" (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 11:07:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 11:07:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 11:07:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-11-23 11:07:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 11:07:47,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 11:07:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 11:07:47,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 11:07:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 11:07:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 11:07:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:07:47,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:07:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 11:07:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 11:07:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2018-11-23 11:07:47,873 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2018-11-23 11:07:48,415 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:07:48,416 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 11:07:48,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:48 BoogieIcfgContainer [2018-11-23 11:07:48,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:07:48,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:07:48,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:07:48,420 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:07:48,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:07:47" (1/3) ... [2018-11-23 11:07:48,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363dfdb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:48, skipping insertion in model container [2018-11-23 11:07:48,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:47" (2/3) ... [2018-11-23 11:07:48,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363dfdb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:48, skipping insertion in model container [2018-11-23 11:07:48,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:48" (3/3) ... [2018-11-23 11:07:48,424 INFO L112 eAbstractionObserver]: Analyzing ICFG test19_true-unreach-call_true-termination.c [2018-11-23 11:07:48,435 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:07:48,443 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 11:07:48,462 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 11:07:48,494 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:07:48,495 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:07:48,495 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:07:48,495 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:07:48,496 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:07:48,496 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:07:48,496 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:07:48,496 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:07:48,496 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:07:48,516 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 11:07:48,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 11:07:48,524 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:07:48,525 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:07:48,527 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:07:48,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:07:48,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1573149608, now seen corresponding path program 1 times [2018-11-23 11:07:48,541 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:07:48,541 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 11:07:48,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:07:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:07:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:07:48,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:07:49,194 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-23 11:07:49,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-23 11:07:49,272 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 11:07:49,381 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 11:07:49,382 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:39 [2018-11-23 11:07:49,886 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 11:07:49,904 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 41 [2018-11-23 11:07:49,924 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-23 11:07:49,927 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 11:07:49,992 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 11:07:50,114 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 11:07:50,116 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 11:07:50,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 42 [2018-11-23 11:07:50,269 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 36 [2018-11-23 11:07:50,351 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 11:07:50,554 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2018-11-23 11:07:50,587 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 11:07:50,613 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 11:07:50,681 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-11-23 11:07:50,699 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-23 11:07:50,705 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 11:07:50,727 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 11:07:50,746 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 11:07:50,755 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 11:07:50,780 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 11:07:50,780 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:68, output treesize:16 [2018-11-23 11:07:50,806 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-23 11:07:50,807 WARN L384 uantifierElimination]: Input elimination task: ∃ [|v_#memory_$Pointer$.base_BEFORE_CALL_2|, |main_~#pb~1.base|, |v_#memory_int_BEFORE_CALL_1|, |v_#memory_$Pointer$.offset_BEFORE_CALL_2|, |main_~#pa~1.base|]. (let ((.cse0 (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_2| |main_~#pa~1.base|) (_ bv0 32))) (.cse1 (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_2| |main_~#pa~1.base|) (_ bv0 32))) (.cse2 (select (select |v_#memory_$Pointer$.base_BEFORE_CALL_2| |main_~#pb~1.base|) (_ bv0 32))) (.cse3 (select (select |v_#memory_$Pointer$.offset_BEFORE_CALL_2| |main_~#pb~1.base|) (_ bv0 32)))) (and (= .cse0 |main_~#a~0.base|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= |main_~#a~0.offset| .cse1) (= |main_~#b~0.base| .cse2) (= |main_~#b~0.offset| .cse3) (= (store |v_#memory_int_BEFORE_CALL_1| .cse0 (store (select |v_#memory_int_BEFORE_CALL_1| .cse0) .cse1 (select (select |v_#memory_int_BEFORE_CALL_1| .cse2) .cse3))) |#memory_int|))) [2018-11-23 11:07:50,807 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2018-11-23 11:07:50,897 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 11:07:50,910 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-23 11:07:50,912 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 11:07:50,939 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 11:07:50,941 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 11:07:50,958 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 11:07:50,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 11:07:50,975 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:30, output treesize:3 [2018-11-23 11:07:50,982 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-23 11:07:50,982 WARN L384 uantifierElimination]: Input elimination task: ∃ [|#memory_int|, |main_~#b~0.base|, |main_~#b~0.offset|, |main_~#a~0.base|, |main_~#a~0.offset|]. (let ((.cse0 (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|)) (.cse1 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))) (and (= .cse0 |main_#t~mem6|) (= .cse0 .cse1) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= .cse1 |main_#t~mem5|))) [2018-11-23 11:07:50,983 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (= |main_#t~mem6| |main_#t~mem5|) [2018-11-23 11:07:51,010 INFO L256 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {21#true} is VALID [2018-11-23 11:07:51,014 INFO L273 TraceCheckUtils]: 1: Hoare triple {21#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {21#true} is VALID [2018-11-23 11:07:51,015 INFO L273 TraceCheckUtils]: 2: Hoare triple {21#true} assume true; {21#true} is VALID [2018-11-23 11:07:51,015 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} #19#return; {21#true} is VALID [2018-11-23 11:07:51,015 INFO L256 TraceCheckUtils]: 4: Hoare triple {21#true} call #t~ret7 := main(); {21#true} is VALID [2018-11-23 11:07:51,021 INFO L273 TraceCheckUtils]: 5: Hoare triple {21#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4bv32);call write~init~intINTTYPE4(#t~nondet3, ~#a~0.base, ~#a~0.offset, 4bv32);havoc #t~nondet3;call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(4bv32);call write~init~intINTTYPE4(#t~nondet4, ~#b~0.base, ~#b~0.offset, 4bv32);havoc #t~nondet4;call ~#pa~1.base, ~#pa~1.offset := #Ultimate.alloc(4bv32);call write~init~$Pointer$(~#a~0.base, ~#a~0.offset, ~#pa~1.base, ~#pa~1.offset, 4bv32);call ~#pb~1.base, ~#pb~1.offset := #Ultimate.alloc(4bv32);call write~init~$Pointer$(~#b~0.base, ~#b~0.offset, ~#pb~1.base, ~#pb~1.offset, 4bv32); {41#(and (= |main_~#a~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pa~1.base|) |main_~#pa~1.offset|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (_ bv0 32) |main_~#pa~1.offset|) (= (select (select |#memory_$Pointer$.base| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.base|) (= (_ bv0 32) |main_~#pb~1.offset|) (= |main_~#b~0.base| (select (select |#memory_$Pointer$.base| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= |main_~#b~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pb~1.base|) |main_~#pb~1.offset|)))} is VALID [2018-11-23 11:07:51,036 INFO L256 TraceCheckUtils]: 6: Hoare triple {41#(and (= |main_~#a~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pa~1.base|) |main_~#pa~1.offset|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (_ bv0 32) |main_~#pa~1.offset|) (= (select (select |#memory_$Pointer$.base| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.base|) (= (_ bv0 32) |main_~#pb~1.offset|) (= |main_~#b~0.base| (select (select |#memory_$Pointer$.base| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= |main_~#b~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pb~1.base|) |main_~#pb~1.offset|)))} call assign(~#pa~1.base, ~#pa~1.offset, ~#pb~1.base, ~#pb~1.offset); {45#(and (= |old(#memory_int)| |#memory_int|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|))} is VALID [2018-11-23 11:07:51,038 INFO L273 TraceCheckUtils]: 7: Hoare triple {45#(and (= |old(#memory_int)| |#memory_int|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|))} ~ppa.base, ~ppa.offset := #in~ppa.base, #in~ppa.offset;~ppb.base, ~ppb.offset := #in~ppb.base, #in~ppb.offset;call #t~mem0.base, #t~mem0.offset := read~$Pointer$(~ppa.base, ~ppa.offset, 4bv32);~pa~0.base, ~pa~0.offset := #t~mem0.base, #t~mem0.offset;havoc #t~mem0.base, #t~mem0.offset;call #t~mem1.base, #t~mem1.offset := read~$Pointer$(~ppb.base, ~ppb.offset, 4bv32);~pb~0.base, ~pb~0.offset := #t~mem1.base, #t~mem1.offset;havoc #t~mem1.base, #t~mem1.offset;call #t~mem2 := read~intINTTYPE4(~pb~0.base, ~pb~0.offset, 4bv32);call write~intINTTYPE4(#t~mem2, ~pa~0.base, ~pa~0.offset, 4bv32);havoc #t~mem2; {49#(= (store |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|) (store (select |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|)) (select (select |old(#memory_$Pointer$.offset)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|) (select (select |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppb.base|) |assign_#in~ppb.offset|)) (select (select |old(#memory_$Pointer$.offset)| |assign_#in~ppb.base|) |assign_#in~ppb.offset|)))) |#memory_int|)} is VALID [2018-11-23 11:07:51,039 INFO L273 TraceCheckUtils]: 8: Hoare triple {49#(= (store |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|) (store (select |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|)) (select (select |old(#memory_$Pointer$.offset)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|) (select (select |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppb.base|) |assign_#in~ppb.offset|)) (select (select |old(#memory_$Pointer$.offset)| |assign_#in~ppb.base|) |assign_#in~ppb.offset|)))) |#memory_int|)} assume true; {49#(= (store |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|) (store (select |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|)) (select (select |old(#memory_$Pointer$.offset)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|) (select (select |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppb.base|) |assign_#in~ppb.offset|)) (select (select |old(#memory_$Pointer$.offset)| |assign_#in~ppb.base|) |assign_#in~ppb.offset|)))) |#memory_int|)} is VALID [2018-11-23 11:07:51,044 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {49#(= (store |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|) (store (select |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|)) (select (select |old(#memory_$Pointer$.offset)| |assign_#in~ppa.base|) |assign_#in~ppa.offset|) (select (select |old(#memory_int)| (select (select |old(#memory_$Pointer$.base)| |assign_#in~ppb.base|) |assign_#in~ppb.offset|)) (select (select |old(#memory_$Pointer$.offset)| |assign_#in~ppb.base|) |assign_#in~ppb.offset|)))) |#memory_int|)} {41#(and (= |main_~#a~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pa~1.base|) |main_~#pa~1.offset|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (_ bv0 32) |main_~#pa~1.offset|) (= (select (select |#memory_$Pointer$.base| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.base|) (= (_ bv0 32) |main_~#pb~1.offset|) (= |main_~#b~0.base| (select (select |#memory_$Pointer$.base| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= |main_~#b~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pb~1.base|) |main_~#pb~1.offset|)))} #23#return; {56#(and (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)))} is VALID [2018-11-23 11:07:51,045 INFO L273 TraceCheckUtils]: 10: Hoare triple {56#(and (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)))} call #t~mem5 := read~intINTTYPE4(~#a~0.base, ~#a~0.offset, 4bv32);call #t~mem6 := read~intINTTYPE4(~#b~0.base, ~#b~0.offset, 4bv32); {60#(= |main_#t~mem6| |main_#t~mem5|)} is VALID [2018-11-23 11:07:51,046 INFO L273 TraceCheckUtils]: 11: Hoare triple {60#(= |main_#t~mem6| |main_#t~mem5|)} assume #t~mem5 != #t~mem6;havoc #t~mem5;havoc #t~mem6; {22#false} is VALID [2018-11-23 11:07:51,046 INFO L273 TraceCheckUtils]: 12: Hoare triple {22#false} assume !false; {22#false} is VALID [2018-11-23 11:07:51,049 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 11:07:51,050 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:07:51,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:07:51,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 11:07:51,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-23 11:07:51,062 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:07:51,065 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2018-11-23 11:07:51,113 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:07:51,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 11:07:51,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 11:07:51,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 11:07:51,125 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-11-23 11:07:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:07:51,955 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-23 11:07:51,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 11:07:51,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-23 11:07:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:07:51,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 11:07:51,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2018-11-23 11:07:51,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 11:07:51,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2018-11-23 11:07:51,977 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 21 transitions. [2018-11-23 11:07:52,030 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:07:52,036 INFO L225 Difference]: With dead ends: 22 [2018-11-23 11:07:52,037 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 11:07:52,040 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-23 11:07:52,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 11:07:52,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 11:07:52,067 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:07:52,067 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:52,068 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:52,068 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:52,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:07:52,069 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:07:52,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:07:52,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:07:52,070 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:07:52,070 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:52,070 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:52,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:07:52,071 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:07:52,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:07:52,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:07:52,071 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:07:52,072 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:07:52,072 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:07:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 11:07:52,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 11:07:52,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-23 11:07:52,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:07:52,075 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 11:07:52,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 11:07:52,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:07:52,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:07:52,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 11:07:52,289 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-23 11:07:52,427 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 11:07:52,427 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 11:07:52,428 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:07:52,428 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:07:52,428 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 11:07:52,428 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 11:07:52,428 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 11:07:52,428 INFO L444 ceAbstractionStarter]: At program point L17(lines 11 24) the Hoare annotation is: false [2018-11-23 11:07:52,429 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2018-11-23 11:07:52,429 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2018-11-23 11:07:52,429 INFO L444 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (and (= |main_~#a~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pa~1.base|) |main_~#pa~1.offset|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (_ bv0 32) |main_~#pa~1.offset|) (= |old(#memory_int)| |#memory_int|) (= (select (select |#memory_$Pointer$.base| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.base|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (_ bv0 32) |main_~#pb~1.offset|) (= |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|) (= |main_~#b~0.base| (select (select |#memory_$Pointer$.base| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= |main_~#b~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pb~1.base|) |main_~#pb~1.offset|))) [2018-11-23 11:07:52,429 INFO L448 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-11-23 11:07:52,429 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 11 24) the Hoare annotation is: (and (= |old(#memory_int)| |#memory_int|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|)) [2018-11-23 11:07:52,429 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2018-11-23 11:07:52,430 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2018-11-23 11:07:52,430 INFO L448 ceAbstractionStarter]: For program point assignEXIT(lines 5 9) no Hoare annotation was computed. [2018-11-23 11:07:52,430 INFO L444 ceAbstractionStarter]: At program point assignENTRY(lines 5 9) the Hoare annotation is: (and (= |old(#memory_int)| |#memory_int|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|)) [2018-11-23 11:07:52,430 INFO L448 ceAbstractionStarter]: For program point assignFINAL(lines 5 9) no Hoare annotation was computed. [2018-11-23 11:07:52,431 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-23 11:07:52,441 WARN L170 areAnnotationChecker]: assignFINAL has no Hoare annotation [2018-11-23 11:07:52,441 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-23 11:07:52,442 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:07:52,442 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2018-11-23 11:07:52,444 WARN L170 areAnnotationChecker]: assignFINAL has no Hoare annotation [2018-11-23 11:07:52,444 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 11:07:52,444 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:07:52,445 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2018-11-23 11:07:52,445 WARN L170 areAnnotationChecker]: assignEXIT has no Hoare annotation [2018-11-23 11:07:52,445 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2018-11-23 11:07:52,445 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2018-11-23 11:07:52,445 WARN L170 areAnnotationChecker]: mainErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2018-11-23 11:07:52,445 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 11:07:52,445 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 11:07:52,445 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-23 11:07:52,446 INFO L163 areAnnotationChecker]: CFG has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-23 11:07:52,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:07:52 BoogieIcfgContainer [2018-11-23 11:07:52,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 11:07:52,452 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 11:07:52,452 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 11:07:52,452 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 11:07:52,453 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:48" (3/4) ... [2018-11-23 11:07:52,457 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 11:07:52,463 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 11:07:52,464 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 11:07:52,464 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assign [2018-11-23 11:07:52,469 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 11:07:52,470 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 11:07:52,470 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 11:07:52,470 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 11:07:52,524 INFO L145 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/test19_true-unreach-call_true-termination.c-witness.graphml [2018-11-23 11:07:52,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 11:07:52,526 INFO L168 Benchmark]: Toolchain (without parser) took 5222.63 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 703.1 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -547.9 MB). Peak memory consumption was 155.1 MB. Max. memory is 7.1 GB. [2018-11-23 11:07:52,527 INFO L168 Benchmark]: CDTParser took 0.23 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 11:07:52,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.77 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 11:07:52,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.51 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 11:07:52,529 INFO L168 Benchmark]: Boogie Preprocessor took 43.40 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 11:07:52,529 INFO L168 Benchmark]: RCFGBuilder took 689.57 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 703.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -746.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2018-11-23 11:07:52,530 INFO L168 Benchmark]: TraceAbstraction took 4034.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 188.3 MB). Peak memory consumption was 188.3 MB. Max. memory is 7.1 GB. [2018-11-23 11:07:52,530 INFO L168 Benchmark]: Witness Printer took 72.18 ms. Allocated memory is still 2.2 GB. Free memory is still 2.0 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 11:07:52,534 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 0.23 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. * CACSL2BoogieTranslator took 338.77 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 33.51 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 43.40 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 689.57 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 703.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -746.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4034.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 188.3 MB). Peak memory consumption was 188.3 MB. Max. memory is 7.1 GB. * Witness Printer took 72.18 ms. Allocated memory is still 2.2 GB. Free memory is still 2.0 GB. There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 11]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 3.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 4 SDslu, 27 SDs, 0 SdLazy, 41 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 72 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 1728 SizeOfPredicates, 17 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...