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/test04_true-unreach-call_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 11:07:21,638 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:07:21,640 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:07:21,652 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:07:21,653 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:07:21,654 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:07:21,655 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:07:21,657 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:07:21,659 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:07:21,660 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:07:21,661 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:07:21,661 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:07:21,662 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:07:21,663 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:07:21,664 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:07:21,665 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:07:21,666 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:07:21,668 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:07:21,670 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:07:21,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:07:21,673 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:07:21,674 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:07:21,677 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-23 11:07:21,684 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 11:07:21,684 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 11:07:21,685 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 11:07:21,686 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 11:07:21,686 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 11:07:21,716 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:07:21,717 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:07:21,718 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:07:21,718 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:07:21,719 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:07:21,720 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:07:21,720 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:07:21,720 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:07:21,720 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:07:21,721 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:07:21,721 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:07:21,721 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:07:21,721 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:07:21,721 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:07:21,722 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 11:07:21,722 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 11:07:21,722 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:07:21,723 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:07:21,723 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:07:21,723 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:07:21,723 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:07:21,723 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:07:21,725 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:07:21,725 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:07:21,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:07:21,726 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:07:21,726 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:07:21,726 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:07:21,726 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 11:07:21,726 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:07:21,727 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 11:07:21,727 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 11:07:21,727 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 11:07:21,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:07:21,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:07:21,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:07:21,830 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:07:21,831 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:07:21,831 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test04_true-unreach-call_true-termination.c [2018-11-23 11:07:21,912 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8ca2840/844dedb500754fdd97f5ce0493ef14af/FLAG9749f0f56 [2018-11-23 11:07:22,403 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:07:22,404 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test04_true-unreach-call_true-termination.c [2018-11-23 11:07:22,409 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8ca2840/844dedb500754fdd97f5ce0493ef14af/FLAG9749f0f56 [2018-11-23 11:07:22,772 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8ca2840/844dedb500754fdd97f5ce0493ef14af [2018-11-23 11:07:22,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:07:22,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:07:22,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:07:22,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:07:22,790 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:07:22,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:22" (1/1) ... [2018-11-23 11:07:22,795 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 11:07:22, skipping insertion in model container [2018-11-23 11:07:22,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:07:22" (1/1) ... [2018-11-23 11:07:22,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:07:22,828 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:07:23,057 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:07:23,075 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:07:23,096 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:07:23,119 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:07:23,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23 WrapperNode [2018-11-23 11:07:23,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:07:23,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:07:23,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:07:23,121 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:07:23,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23" (1/1) ... [2018-11-23 11:07:23,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23" (1/1) ... [2018-11-23 11:07:23,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:07:23,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:07:23,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:07:23,155 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:07:23,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23" (1/1) ... [2018-11-23 11:07:23,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23" (1/1) ... [2018-11-23 11:07:23,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23" (1/1) ... [2018-11-23 11:07:23,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23" (1/1) ... [2018-11-23 11:07:23,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23" (1/1) ... [2018-11-23 11:07:23,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23" (1/1) ... [2018-11-23 11:07:23,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23" (1/1) ... [2018-11-23 11:07:23,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:07:23,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:07:23,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:07:23,207 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:07:23,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23" (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 11:07:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 11:07:23,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 11:07:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 11:07:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 11:07:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-23 11:07:23,382 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-23 11:07:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:07:23,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:07:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 11:07:23,383 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 11:07:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 11:07:23,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 11:07:23,875 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:07:23,876 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 11:07:23,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:23 BoogieIcfgContainer [2018-11-23 11:07:23,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:07:23,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:07:23,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:07:23,881 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:07:23,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:07:22" (1/3) ... [2018-11-23 11:07:23,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7613c8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:23, skipping insertion in model container [2018-11-23 11:07:23,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:07:23" (2/3) ... [2018-11-23 11:07:23,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7613c8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:07:23, skipping insertion in model container [2018-11-23 11:07:23,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:23" (3/3) ... [2018-11-23 11:07:23,886 INFO L112 eAbstractionObserver]: Analyzing ICFG test04_true-unreach-call_true-termination.c [2018-11-23 11:07:23,897 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:07:23,904 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 11:07:23,919 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 11:07:23,958 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:07:23,959 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:07:23,959 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:07:23,959 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:07:23,960 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:07:23,960 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:07:23,960 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:07:23,960 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:07:23,961 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:07:23,978 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 11:07:23,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 11:07:23,985 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:07:23,986 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:07:23,988 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:07:23,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:07:23,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1498735640, now seen corresponding path program 1 times [2018-11-23 11:07:24,000 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:07:24,001 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 11:07:24,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:07:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:07:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:07:24,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:07:24,369 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 11:07:24,385 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 11:07:24,447 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 11:07:24,448 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2018-11-23 11:07:25,072 INFO L256 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {21#true} is VALID [2018-11-23 11:07:25,075 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 11:07:25,076 INFO L273 TraceCheckUtils]: 2: Hoare triple {21#true} assume true; {21#true} is VALID [2018-11-23 11:07:25,076 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} #19#return; {21#true} is VALID [2018-11-23 11:07:25,076 INFO L256 TraceCheckUtils]: 4: Hoare triple {21#true} call #t~ret2 := main(); {21#true} is VALID [2018-11-23 11:07:25,079 INFO L273 TraceCheckUtils]: 5: Hoare triple {21#true} call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4bv32);call ~#b~0.base, ~#b~0.offset := #Ultimate.alloc(4bv32);~p1~0.base, ~p1~0.offset := ~#a~0.base, ~#a~0.offset;~p2~0.base, ~p2~0.offset := ~#b~0.base, ~#b~0.offset; {41#(and (not (= main_~p2~0.base |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (= main_~p1~0.offset |main_~#a~0.offset|) (= |main_~#a~0.offset| (_ bv0 32)))} is VALID [2018-11-23 11:07:25,079 INFO L256 TraceCheckUtils]: 6: Hoare triple {41#(and (not (= main_~p2~0.base |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (= main_~p1~0.offset |main_~#a~0.offset|) (= |main_~#a~0.offset| (_ bv0 32)))} call #t~ret0 := f(~p1~0.base, ~p1~0.offset, ~p2~0.base, ~p2~0.offset); {21#true} is VALID [2018-11-23 11:07:25,081 INFO L273 TraceCheckUtils]: 7: Hoare triple {21#true} ~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset;~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset;#res := (if ~p1.base == ~p2.base && ~p1.offset == ~p2.offset then 1bv32 else 0bv32); {48#(or (and (= (bvadd |f_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |f_#in~p1.base| |f_#in~p2.base|)) (= |f_#res| (_ bv0 32)))} is VALID [2018-11-23 11:07:25,081 INFO L273 TraceCheckUtils]: 8: Hoare triple {48#(or (and (= (bvadd |f_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |f_#in~p1.base| |f_#in~p2.base|)) (= |f_#res| (_ bv0 32)))} assume true; {48#(or (and (= (bvadd |f_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |f_#in~p1.base| |f_#in~p2.base|)) (= |f_#res| (_ bv0 32)))} is VALID [2018-11-23 11:07:25,086 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {48#(or (and (= (bvadd |f_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |f_#in~p1.base| |f_#in~p2.base|)) (= |f_#res| (_ bv0 32)))} {41#(and (not (= main_~p2~0.base |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (= main_~p1~0.offset |main_~#a~0.offset|) (= |main_~#a~0.offset| (_ bv0 32)))} #23#return; {55#(and (= main_~p1~0.base |main_~#a~0.base|) (= main_~p1~0.offset |main_~#a~0.offset|) (= |main_~#a~0.offset| (_ bv0 32)) (= (_ bv0 32) |main_#t~ret0|))} is VALID [2018-11-23 11:07:25,088 INFO L273 TraceCheckUtils]: 10: Hoare triple {55#(and (= main_~p1~0.base |main_~#a~0.base|) (= main_~p1~0.offset |main_~#a~0.offset|) (= |main_~#a~0.offset| (_ bv0 32)) (= (_ bv0 32) |main_#t~ret0|))} call write~intINTTYPE4(#t~ret0, ~#a~0.base, ~#a~0.offset, 4bv32);havoc #t~ret0;call #t~mem1 := read~intINTTYPE4(~p1~0.base, ~p1~0.offset, 4bv32); {59#(= (_ bv0 32) |main_#t~mem1|)} is VALID [2018-11-23 11:07:25,097 INFO L273 TraceCheckUtils]: 11: Hoare triple {59#(= (_ bv0 32) |main_#t~mem1|)} assume 0bv32 != #t~mem1;havoc #t~mem1; {22#false} is VALID [2018-11-23 11:07:25,098 INFO L273 TraceCheckUtils]: 12: Hoare triple {22#false} assume !false; {22#false} is VALID [2018-11-23 11:07:25,101 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 11:07:25,101 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:07:25,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:07:25,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 11:07:25,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-23 11:07:25,117 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:07:25,121 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-23 11:07:25,222 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 11:07:25,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 11:07:25,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 11:07:25,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 11:07:25,239 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2018-11-23 11:07:25,848 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-23 11:07:26,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:07:26,253 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-23 11:07:26,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 11:07:26,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-23 11:07:26,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:07:26,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 11:07:26,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2018-11-23 11:07:26,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 11:07:26,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2018-11-23 11:07:26,270 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 21 transitions. [2018-11-23 11:07:26,329 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 11:07:26,336 INFO L225 Difference]: With dead ends: 22 [2018-11-23 11:07:26,337 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 11:07:26,340 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-23 11:07:26,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 11:07:26,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 11:07:26,363 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:07:26,363 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:26,364 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:26,364 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:26,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:07:26,365 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:07:26,365 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:07:26,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:07:26,366 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:07:26,366 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:26,366 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:07:26,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:07:26,367 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:07:26,367 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:07:26,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:07:26,368 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:07:26,368 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:07:26,368 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:07:26,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 11:07:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 11:07:26,370 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-23 11:07:26,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:07:26,371 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 11:07:26,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 11:07:26,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:07:26,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:07:26,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 11:07:26,630 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 11:07:26,631 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 11:07:26,631 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:07:26,631 INFO L448 ceAbstractionStarter]: For program point fEXIT(lines 4 6) no Hoare annotation was computed. [2018-11-23 11:07:26,631 INFO L451 ceAbstractionStarter]: At program point fENTRY(lines 4 6) the Hoare annotation is: true [2018-11-23 11:07:26,631 INFO L448 ceAbstractionStarter]: For program point fFINAL(lines 4 6) no Hoare annotation was computed. [2018-11-23 11:07:26,631 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:07:26,631 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 11:07:26,631 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 11:07:26,632 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 11:07:26,632 INFO L444 ceAbstractionStarter]: At program point L17(lines 8 24) the Hoare annotation is: false [2018-11-23 11:07:26,632 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2018-11-23 11:07:26,632 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (and (not (= main_~p2~0.base |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (= main_~p1~0.offset |main_~#a~0.offset|) (= |main_~#a~0.offset| (_ bv0 32))) [2018-11-23 11:07:26,632 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 24) the Hoare annotation is: true [2018-11-23 11:07:26,633 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-23 11:07:26,633 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 24) no Hoare annotation was computed. [2018-11-23 11:07:26,633 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2018-11-23 11:07:26,633 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 24) no Hoare annotation was computed. [2018-11-23 11:07:26,635 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-23 11:07:26,635 WARN L170 areAnnotationChecker]: fFINAL has no Hoare annotation [2018-11-23 11:07:26,637 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-23 11:07:26,637 WARN L170 areAnnotationChecker]: fFINAL has no Hoare annotation [2018-11-23 11:07:26,637 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:07:26,637 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2018-11-23 11:07:26,637 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 11:07:26,638 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2018-11-23 11:07:26,638 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:07:26,638 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2018-11-23 11:07:26,638 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2018-11-23 11:07:26,638 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2018-11-23 11:07:26,638 WARN L170 areAnnotationChecker]: mainErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2018-11-23 11:07:26,638 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 11:07:26,638 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 11:07:26,639 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-23 11:07:26,639 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 11:07:26,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:07:26 BoogieIcfgContainer [2018-11-23 11:07:26,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 11:07:26,645 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 11:07:26,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 11:07:26,646 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 11:07:26,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:07:23" (3/4) ... [2018-11-23 11:07:26,651 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 11:07:26,659 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 11:07:26,663 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2018-11-23 11:07:26,664 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 11:07:26,673 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-23 11:07:26,675 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 11:07:26,675 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 11:07:26,676 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 11:07:26,720 INFO L145 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/test04_true-unreach-call_true-termination.c-witness.graphml [2018-11-23 11:07:26,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 11:07:26,722 INFO L168 Benchmark]: Toolchain (without parser) took 3937.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -669.0 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2018-11-23 11:07:26,723 INFO L168 Benchmark]: CDTParser took 0.55 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 11:07:26,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.87 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-11-23 11:07:26,725 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.84 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 11:07:26,725 INFO L168 Benchmark]: Boogie Preprocessor took 50.99 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 11:07:26,726 INFO L168 Benchmark]: RCFGBuilder took 670.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2018-11-23 11:07:26,727 INFO L168 Benchmark]: TraceAbstraction took 2767.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 118.2 MB). Peak memory consumption was 118.2 MB. Max. memory is 7.1 GB. [2018-11-23 11:07:26,728 INFO L168 Benchmark]: Witness Printer took 74.90 ms. Allocated memory is still 2.3 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 11:07:26,733 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 0.55 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 333.87 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 33.84 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 50.99 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 670.43 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2767.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 118.2 MB). Peak memory consumption was 118.2 MB. Max. memory is 7.1 GB. * Witness Printer took 74.90 ms. Allocated memory is still 2.3 GB. Free memory is still 2.1 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: 8]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 43 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s 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, 20 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 756 SizeOfPredicates, 12 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 15 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...