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-acceleration/simple_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:47:26,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:47:26,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:47:26,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:47:26,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:47:26,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:47:26,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:47:26,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:47:26,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:47:26,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:47:26,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:47:26,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:47:26,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:47:26,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:47:26,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:47:26,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:47:26,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:47:26,756 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 [2019-09-20 13:47:26,771 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:47:26,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:47:26,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:47:26,772 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:47:26,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:47:26,773 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:47:26,773 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:47:26,774 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:47:26,774 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:47:26,774 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:47:26,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:47:26,775 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:47:26,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:47:26,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:47:26,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:47:26,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:47:26,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:47:26,776 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:47:26,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:47:26,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:47:26,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:47:26,777 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:47:26,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:47:26,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:47:26,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:47:26,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:47:26,778 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:47:26,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:47:26,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:47:26,778 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:47:26,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:47:26,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:47:26,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:47:26,824 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:47:26,824 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:47:26,825 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2019-09-20 13:47:26,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b3e618c1/ca576fe110314f7791f7c0d0bb0048c8/FLAG778331b08 [2019-09-20 13:47:27,298 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:47:27,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2019-09-20 13:47:27,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b3e618c1/ca576fe110314f7791f7c0d0bb0048c8/FLAG778331b08 [2019-09-20 13:47:27,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b3e618c1/ca576fe110314f7791f7c0d0bb0048c8 [2019-09-20 13:47:27,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:47:27,662 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:47:27,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:27,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:47:27,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:47:27,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:27,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d1404a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27, skipping insertion in model container [2019-09-20 13:47:27,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:27,678 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:47:27,700 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:47:27,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:27,900 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:47:27,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:27,928 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:47:27,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27 WrapperNode [2019-09-20 13:47:27,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:27,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:47:27,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:47:27,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:47:27,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:27,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (1/1) ... [2019-09-20 13:47:28,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:47:28,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:47:28,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:47:28,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:47:28,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:27" (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 [2019-09-20 13:47:28,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:47:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:47:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:47:28,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:47:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:47:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 13:47:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:47:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:47:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:47:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:47:28,283 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:47:28,283 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:47:28,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:28 BoogieIcfgContainer [2019-09-20 13:47:28,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:47:28,285 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:47:28,285 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:47:28,286 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:47:28,287 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,313 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:47:28,382 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:47:28,411 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:47:28,430 INFO L272 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Performed 12 root evaluator evaluations with a maximum evaluation depth of 7. Performed 12 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2019-09-20 13:47:28,431 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:47:28,434 INFO L168 Benchmark]: Toolchain (without parser) took 771.13 ms. Allocated memory was 133.7 MB in the beginning and 198.7 MB in the end (delta: 65.0 MB). Free memory was 89.4 MB in the beginning and 157.9 MB in the end (delta: -68.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:47:28,435 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 107.9 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:47:28,436 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.23 ms. Allocated memory is still 133.7 MB. Free memory was 89.2 MB in the beginning and 80.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:28,437 INFO L168 Benchmark]: Boogie Preprocessor took 120.54 ms. Allocated memory was 133.7 MB in the beginning and 198.7 MB in the end (delta: 65.0 MB). Free memory was 80.0 MB in the beginning and 176.3 MB in the end (delta: -96.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:28,438 INFO L168 Benchmark]: RCFGBuilder took 234.32 ms. Allocated memory is still 198.7 MB. Free memory was 175.7 MB in the beginning and 164.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:28,439 INFO L168 Benchmark]: Abstract Interpretation took 145.63 ms. Allocated memory is still 198.7 MB. Free memory was 164.9 MB in the beginning and 157.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:28,444 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 107.9 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 266.23 ms. Allocated memory is still 133.7 MB. Free memory was 89.2 MB in the beginning and 80.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.54 ms. Allocated memory was 133.7 MB in the beginning and 198.7 MB in the end (delta: 65.0 MB). Free memory was 80.0 MB in the beginning and 176.3 MB in the end (delta: -96.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 234.32 ms. Allocated memory is still 198.7 MB. Free memory was 175.7 MB in the beginning and 164.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 145.63 ms. Allocated memory is still 198.7 MB. Free memory was 164.9 MB in the beginning and 157.9 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: 6]: 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: [L12] unsigned int x = __VERIFIER_nondet_uint(); [L14] COND FALSE !(x < 0x0fffffff) [L18] CALL __VERIFIER_assert(x > 0x0fffffff) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...