java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:08:04,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:08:04,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:08:04,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:08:04,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:08:04,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:08:04,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:08:04,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:08:04,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:08:04,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:08:04,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:08:04,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:08:04,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:08:04,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:08:04,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:08:04,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:08:04,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:08:04,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:08:04,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:08:04,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:08:04,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:08:04,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:08:04,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:08:04,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:08:04,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:08:04,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:08:04,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:08:04,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:08:04,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:08:04,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:08:04,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:08:04,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:08:04,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:08:04,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:08:04,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:08:04,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:08:04,638 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-11 16:08:04,658 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:08:04,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:08:04,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:08:04,660 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:08:04,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:08:04,661 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:08:04,661 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:08:04,661 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:08:04,661 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:08:04,662 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:08:04,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:08:04,664 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:08:04,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:08:04,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:08:04,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:08:04,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:08:04,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:08:04,665 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:08:04,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:08:04,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:08:04,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:08:04,666 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:08:04,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:08:04,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:08:04,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:08:04,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:08:04,667 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:08:04,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:08:04,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:08:04,668 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:08:04,717 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:08:04,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:08:04,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:08:04,746 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:08:04,747 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:08:04,748 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop1-2.c [2019-09-11 16:08:04,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a85b8fd1/efc0825c795249a89bebc4e038556d21/FLAG7e2ef7b25 [2019-09-11 16:08:05,281 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:08:05,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop1-2.c [2019-09-11 16:08:05,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a85b8fd1/efc0825c795249a89bebc4e038556d21/FLAG7e2ef7b25 [2019-09-11 16:08:05,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a85b8fd1/efc0825c795249a89bebc4e038556d21 [2019-09-11 16:08:05,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:08:05,649 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:08:05,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:08:05,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:08:05,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:08:05,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:08:05" (1/1) ... [2019-09-11 16:08:05,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb7ab14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:08:05, skipping insertion in model container [2019-09-11 16:08:05,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:08:05" (1/1) ... [2019-09-11 16:08:05,666 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:08:05,684 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:08:05,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:08:05,921 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:08:05,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:08:05,962 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:08:05,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:08:05 WrapperNode [2019-09-11 16:08:05,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:08:05,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:08:05,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:08:05,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:08:06,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:08:05" (1/1) ... [2019-09-11 16:08:06,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:08:05" (1/1) ... [2019-09-11 16:08:06,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:08:05" (1/1) ... [2019-09-11 16:08:06,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:08:05" (1/1) ... [2019-09-11 16:08:06,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:08:05" (1/1) ... [2019-09-11 16:08:06,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:08:05" (1/1) ... [2019-09-11 16:08:06,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:08:05" (1/1) ... [2019-09-11 16:08:06,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:08:06,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:08:06,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:08:06,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:08:06,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:08:05" (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 [2019-09-11 16:08:06,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:08:06,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:08:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:08:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:08:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-11 16:08:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:08:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:08:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:08:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:08:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:08:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:08:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:08:06,397 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:08:06,397 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-11 16:08:06,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:08:06 BoogieIcfgContainer [2019-09-11 16:08:06,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:08:06,406 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:08:06,407 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:08:06,407 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:08:06,408 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:08:06" (1/1) ... [2019-09-11 16:08:06,467 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:08:06,600 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPLT has no precise implementation. [2019-09-11 16:08:06,631 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPGT has no precise implementation. [2019-09-11 16:08:06,702 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:08:06,720 INFO L272 AbstractInterpreter]: Visited 22 different actions 118 times. Merged at 6 different actions 36 times. Widened at 1 different actions 2 times. Performed 177 root evaluator evaluations with a maximum evaluation depth of 4. Performed 177 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 7 fixpoints after 2 different actions. Largest state had 10 variables. [2019-09-11 16:08:06,721 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:08:06,724 INFO L168 Benchmark]: Toolchain (without parser) took 1073.54 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 89.5 MB in the beginning and 157.5 MB in the end (delta: -68.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:08:06,725 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:08:06,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.27 ms. Allocated memory is still 141.0 MB. Free memory was 89.3 MB in the beginning and 79.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:08:06,727 INFO L168 Benchmark]: Boogie Preprocessor took 159.15 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 79.9 MB in the beginning and 179.5 MB in the end (delta: -99.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-09-11 16:08:06,728 INFO L168 Benchmark]: RCFGBuilder took 275.22 ms. Allocated memory is still 201.9 MB. Free memory was 178.9 MB in the beginning and 167.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-11 16:08:06,729 INFO L168 Benchmark]: Abstract Interpretation took 314.48 ms. Allocated memory is still 201.9 MB. Free memory was 167.5 MB in the beginning and 157.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:08:06,733 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 141.0 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 313.27 ms. Allocated memory is still 141.0 MB. Free memory was 89.3 MB in the beginning and 79.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 159.15 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 79.9 MB in the beginning and 179.5 MB in the end (delta: -99.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 275.22 ms. Allocated memory is still 201.9 MB. Free memory was 178.9 MB in the beginning and 167.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 314.48 ms. Allocated memory is still 201.9 MB. Free memory was 167.5 MB in the beginning and 157.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L15] float x = __VERIFIER_nondet_float() ; [L16] float exp = 1.0 ; [L17] float term = 1.0 ; [L18] unsigned int count = 1 ; [L19] float result = 2*(1/(1-x)) ; [L20] int temp ; [L22] COND TRUE 1 [L24] term = term * (x/count) [L25] exp = exp + term [L26] count++ [L28] temp = __VERIFIER_nondet_int() [L29] COND TRUE temp ==0 [L32] CALL __VERIFIER_assert( result >= exp ) [L9] COND TRUE !(cond) [L9] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...