java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/water_pid.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:16:02,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:16:02,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:16:02,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:16:02,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:16:02,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:16:02,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:16:02,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:16:02,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:16:02,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:16:02,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:16:02,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:16:02,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:16:02,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:16:02,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:16:02,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:16:02,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:16:02,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:16:02,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:16:02,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:16:02,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:16:02,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:16:02,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:16:02,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:16:02,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:16:02,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:16:02,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:16:02,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:16:02,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:16:02,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:16:02,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:16:02,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:16:02,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:16:02,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:16:02,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:16:02,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:16:02,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 01:16:02,209 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:16:02,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:16:02,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:16:02,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:16:02,211 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:16:02,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:16:02,211 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:16:02,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:16:02,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:16:02,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:16:02,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:16:02,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:16:02,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:16:02,213 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:16:02,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:16:02,213 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:16:02,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:16:02,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:16:02,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:16:02,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:16:02,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:16:02,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:16:02,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:16:02,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:16:02,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:16:02,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:16:02,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:16:02,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:16:02,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:16:02,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:16:02,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:16:02,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:16:02,263 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:16:02,264 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:16:02,264 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/water_pid.c [2019-09-08 01:16:02,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c27753ae/25a904c39670426da62c7a8371725778/FLAGc25d1f734 [2019-09-08 01:16:02,787 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:16:02,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/water_pid.c [2019-09-08 01:16:02,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c27753ae/25a904c39670426da62c7a8371725778/FLAGc25d1f734 [2019-09-08 01:16:03,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c27753ae/25a904c39670426da62c7a8371725778 [2019-09-08 01:16:03,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:16:03,195 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:16:03,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:16:03,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:16:03,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:16:03,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:16:03" (1/1) ... [2019-09-08 01:16:03,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e607a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:16:03, skipping insertion in model container [2019-09-08 01:16:03,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:16:03" (1/1) ... [2019-09-08 01:16:03,213 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:16:03,227 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:16:03,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:16:03,384 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:16:03,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:16:03,417 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:16:03,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:16:03 WrapperNode [2019-09-08 01:16:03,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:16:03,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:16:03,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:16:03,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:16:03,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:16:03" (1/1) ... [2019-09-08 01:16:03,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:16:03" (1/1) ... [2019-09-08 01:16:03,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:16:03" (1/1) ... [2019-09-08 01:16:03,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:16:03" (1/1) ... [2019-09-08 01:16:03,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:16:03" (1/1) ... [2019-09-08 01:16:03,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:16:03" (1/1) ... [2019-09-08 01:16:03,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:16:03" (1/1) ... [2019-09-08 01:16:03,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:16:03,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:16:03,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:16:03,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:16:03,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:16:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:16:03,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:16:03,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:16:03,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-08 01:16:03,625 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2019-09-08 01:16:03,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:16:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:16:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-08 01:16:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure y [2019-09-08 01:16:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:16:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:16:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:16:03,819 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:16:03,819 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-08 01:16:03,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:16:03 BoogieIcfgContainer [2019-09-08 01:16:03,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:16:03,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:16:03,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:16:03,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:16:03,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:16:03" (1/3) ... [2019-09-08 01:16:03,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4363b395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:16:03, skipping insertion in model container [2019-09-08 01:16:03,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:16:03" (2/3) ... [2019-09-08 01:16:03,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4363b395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:16:03, skipping insertion in model container [2019-09-08 01:16:03,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:16:03" (3/3) ... [2019-09-08 01:16:03,828 INFO L109 eAbstractionObserver]: Analyzing ICFG water_pid.c [2019-09-08 01:16:03,838 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:16:03,851 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:16:03,888 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:16:03,932 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:16:03,933 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:16:03,933 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:16:03,933 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:16:03,933 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:16:03,934 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:16:03,934 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:16:03,934 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:16:03,934 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:16:03,957 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2019-09-08 01:16:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-08 01:16:03,964 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:16:03,966 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:16:03,969 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:16:03,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:16:03,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1227502395, now seen corresponding path program 1 times [2019-09-08 01:16:03,979 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:16:03,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:16:04,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:16:04,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:16:04,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:16:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:16:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:16:04,141 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:16:04,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:16:04 BoogieIcfgContainer [2019-09-08 01:16:04,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:16:04,176 INFO L168 Benchmark]: Toolchain (without parser) took 980.74 ms. Allocated memory was 139.5 MB in the beginning and 199.8 MB in the end (delta: 60.3 MB). Free memory was 87.0 MB in the beginning and 150.3 MB in the end (delta: -63.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-08 01:16:04,178 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:16:04,179 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.61 ms. Allocated memory is still 139.5 MB. Free memory was 86.8 MB in the beginning and 76.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:16:04,180 INFO L168 Benchmark]: Boogie Preprocessor took 140.45 ms. Allocated memory was 139.5 MB in the beginning and 199.8 MB in the end (delta: 60.3 MB). Free memory was 76.6 MB in the beginning and 177.2 MB in the end (delta: -100.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:16:04,182 INFO L168 Benchmark]: RCFGBuilder took 261.17 ms. Allocated memory is still 199.8 MB. Free memory was 176.6 MB in the beginning and 164.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:16:04,183 INFO L168 Benchmark]: TraceAbstraction took 351.82 ms. Allocated memory is still 199.8 MB. Free memory was 163.9 MB in the beginning and 150.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:16:04,191 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 220.61 ms. Allocated memory is still 139.5 MB. Free memory was 86.8 MB in the beginning and 76.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.45 ms. Allocated memory was 139.5 MB in the beginning and 199.8 MB in the end (delta: 60.3 MB). Free memory was 76.6 MB in the beginning and 177.2 MB in the end (delta: -100.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 261.17 ms. Allocated memory is still 199.8 MB. Free memory was 176.6 MB in the beginning and 164.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 351.82 ms. Allocated memory is still 199.8 MB. Free memory was 163.9 MB in the beginning and 150.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 44, overapproximation of to_real at line 29, overapproximation of someBinaryArithmeticDOUBLEoperation at line 39. Possible FailurePath: [L10] static NUM yn = 0; [L12] NUM ui = 0; VAL [\old(ui)=8, \old(yn)=3] [L22] NUM yi, yc; [L23] NUM K; [L24] NUM T; [L25] NUM taui; [L26] NUM taud; [L27] NUM ei, sumej, epi; [L28] int i; [L29] T = 1 [L30] taui = 1 [L31] taud = 1 [L32] K = .5 [L33] yc = .5 VAL [\old(ui)=1, \old(yn)=7, K=1/2, ui=1, yc=1/2, yn=7] [L34] CALL, EXPR y(0) VAL [\old(i)=0, \old(ui)=1, \old(yn)=7, ui=1, yn=7] [L16] yn += ui [L17] return yn; VAL [\old(i)=0, \old(ui)=1, \old(yn)=7, \result=5, i=0, ui=1, yn=5] [L34] RET, EXPR y(0) VAL [\old(ui)=1, \old(yn)=7, K=1/2, ui=1, y(0)=5, yc=1/2, yn=5] [L34] yi = y(0) [L35] epi = yc-yi [L36] sumej = epi [L37] i=0 VAL [\old(ui)=1, \old(yn)=7, epi=6, i=0, K=1/2, sumej=6, ui=1, yc=1/2, yi=5, yn=5] [L37] COND TRUE i<120 VAL [\old(ui)=1, \old(yn)=7, epi=6, i=0, K=1/2, sumej=6, ui=1, yc=1/2, yi=5, yn=5] [L38] CALL, EXPR y(i) VAL [\old(i)=0, \old(ui)=1, \old(yn)=5, ui=1, yn=5] [L16] yn += ui [L17] return yn; VAL [\old(i)=0, \old(ui)=1, \old(yn)=5, \result=2, i=0, ui=1, yn=2] [L38] RET, EXPR y(i) VAL [\old(ui)=1, \old(yn)=7, epi=6, i=0, K=1/2, sumej=6, ui=1, y(i)=2, yc=1/2, yi=5, yn=2] [L38] yi = y(i) [L39] ei = yc-yi [L40] sumej = sumej+ei [L41] ui = K*(ei+sumej*T/taui+taud/T*(ei-epi)) [L42] epi = ei VAL [\old(ui)=1, \old(yn)=7, ei=4, epi=4, i=0, K=1/2, yc=1/2, yi=2, yn=2] [L44] CALL __VERIFIER_assert(epi >= -1. && epi <= 1.) VAL [\old(cond)=0, \old(ui)=1, \old(yn)=7, yn=2] [L6] COND TRUE !(cond) VAL [\old(cond)=0, \old(ui)=1, \old(yn)=7, cond=0, yn=2] [L6] __VERIFIER_error() VAL [\old(cond)=0, \old(ui)=1, \old(yn)=7, cond=0, yn=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 27 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...