/usr/bin/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 06:58:38,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 06:58:38,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 06:58:38,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 06:58:38,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 06:58:38,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 06:58:38,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 06:58:38,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 06:58:38,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 06:58:38,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 06:58:38,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 06:58:38,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-11-07 06:58:38,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 06:58:38,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 06:58:38,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 06:58:38,813 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 [2019-11-07 06:58:38,832 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 06:58:38,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 06:58:38,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 06:58:38,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 06:58:38,834 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 06:58:38,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 06:58:38,834 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 06:58:38,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 06:58:38,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 06:58:38,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 06:58:38,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 06:58:38,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 06:58:38,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 06:58:38,837 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 06:58:38,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 06:58:38,837 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 06:58:38,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 06:58:38,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 06:58:38,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 06:58:38,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 06:58:38,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 06:58:38,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 06:58:38,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 06:58:38,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 06:58:38,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 06:58:38,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 06:58:38,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 06:58:38,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 06:58:38,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-11-07 06:58:39,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 06:58:39,129 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 06:58:39,133 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 06:58:39,134 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 06:58:39,135 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 06:58:39,135 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_4.c [2019-11-07 06:58:39,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a3f2342/59fdedf58a7b44e89c0cbff7340ac5f7/FLAG5baf78e2e [2019-11-07 06:58:39,654 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 06:58:39,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_4.c [2019-11-07 06:58:39,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a3f2342/59fdedf58a7b44e89c0cbff7340ac5f7/FLAG5baf78e2e [2019-11-07 06:58:40,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a3f2342/59fdedf58a7b44e89c0cbff7340ac5f7 [2019-11-07 06:58:40,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 06:58:40,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 06:58:40,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 06:58:40,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 06:58:40,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 06:58:40,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:58:40" (1/1) ... [2019-11-07 06:58:40,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1112c003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:40, skipping insertion in model container [2019-11-07 06:58:40,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:58:40" (1/1) ... [2019-11-07 06:58:40,065 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 06:58:40,081 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 06:58:40,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:58:40,267 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 06:58:40,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:58:40,297 INFO L192 MainTranslator]: Completed translation [2019-11-07 06:58:40,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:40 WrapperNode [2019-11-07 06:58:40,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 06:58:40,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 06:58:40,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 06:58:40,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 06:58:40,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:40" (1/1) ... [2019-11-07 06:58:40,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:40" (1/1) ... [2019-11-07 06:58:40,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:40" (1/1) ... [2019-11-07 06:58:40,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:40" (1/1) ... [2019-11-07 06:58:40,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:40" (1/1) ... [2019-11-07 06:58:40,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:40" (1/1) ... [2019-11-07 06:58:40,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:40" (1/1) ... [2019-11-07 06:58:40,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 06:58:40,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 06:58:40,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 06:58:40,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 06:58:40,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:40" (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 [2019-11-07 06:58:40,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 06:58:40,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 06:58:40,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 06:58:40,468 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-11-07 06:58:40,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 06:58:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 06:58:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 06:58:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-11-07 06:58:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 06:58:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 06:58:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 06:58:40,595 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 06:58:40,595 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-07 06:58:40,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:58:40 BoogieIcfgContainer [2019-11-07 06:58:40,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 06:58:40,597 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 06:58:40,598 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 06:58:40,598 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 06:58:40,599 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:58:40" (1/1) ... [2019-11-07 06:58:40,626 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 06:58:40,724 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 06:58:40,746 INFO L272 AbstractInterpreter]: Visited 20 different actions 20 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 4. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 4 variables. [2019-11-07 06:58:40,747 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-11-07 06:58:40,750 INFO L168 Benchmark]: Toolchain (without parser) took 700.32 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 100.9 MB in the beginning and 163.7 MB in the end (delta: -62.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 06:58:40,751 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 144.2 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 06:58:40,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.51 ms. Allocated memory is still 144.2 MB. Free memory was 100.7 MB in the beginning and 91.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:40,754 INFO L168 Benchmark]: Boogie Preprocessor took 109.45 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 91.5 MB in the beginning and 180.7 MB in the end (delta: -89.2 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:40,755 INFO L168 Benchmark]: RCFGBuilder took 188.87 ms. Allocated memory is still 201.3 MB. Free memory was 180.7 MB in the beginning and 170.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:40,757 INFO L168 Benchmark]: Abstract Interpretation took 149.55 ms. Allocated memory is still 201.3 MB. Free memory was 170.7 MB in the beginning and 163.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:40,763 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 144.2 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 248.51 ms. Allocated memory is still 144.2 MB. Free memory was 100.7 MB in the beginning and 91.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.45 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 91.5 MB in the beginning and 180.7 MB in the end (delta: -89.2 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 188.87 ms. Allocated memory is still 201.3 MB. Free memory was 180.7 MB in the beginning and 170.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 149.55 ms. Allocated memory is still 201.3 MB. Free memory was 170.7 MB in the beginning and 163.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 5]: 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: [L10] int x=0; [L24] COND TRUE 1 [L26] CALL eval() [L14] COND TRUE 1 [L15] x=1 [L26] RET eval() [L27] CALL __VERIFIER_assert(x==0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...