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/functions_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:11:36,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:11:36,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:11:36,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-11 16:11:36,756 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 [2019-09-11 16:11:36,774 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:11:36,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:11:36,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:11:36,775 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:11:36,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:11:36,776 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:11:36,776 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:11:36,776 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:11:36,776 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:11:36,776 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:11:36,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:11:36,777 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:11:36,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:11:36,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:11:36,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:11:36,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:11:36,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:11:36,779 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:11:36,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:11:36,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:11:36,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:11:36,780 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:11:36,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:11:36,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:11:36,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:11:36,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:11:36,781 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:11:36,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:11:36,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:11:36,781 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:11:36,811 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:11:36,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:11:36,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:11:36,835 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:11:36,836 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:11:36,837 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2019-09-11 16:11:36,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae81e70a7/52156e31c76644b480cf57323dee8c74/FLAG1d372d8aa [2019-09-11 16:11:37,418 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:11:37,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2019-09-11 16:11:37,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae81e70a7/52156e31c76644b480cf57323dee8c74/FLAG1d372d8aa [2019-09-11 16:11:37,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae81e70a7/52156e31c76644b480cf57323dee8c74 [2019-09-11 16:11:37,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:11:37,755 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:11:37,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:11:37,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:11:37,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:11:37,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:11:37" (1/1) ... [2019-09-11 16:11:37,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18030d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:37, skipping insertion in model container [2019-09-11 16:11:37,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:11:37" (1/1) ... [2019-09-11 16:11:37,776 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:11:37,795 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:11:37,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:11:37,996 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:11:38,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:11:38,041 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:11:38,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:38 WrapperNode [2019-09-11 16:11:38,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:11:38,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:11:38,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:11:38,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:11:38,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:38" (1/1) ... [2019-09-11 16:11:38,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:38" (1/1) ... [2019-09-11 16:11:38,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:38" (1/1) ... [2019-09-11 16:11:38,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:38" (1/1) ... [2019-09-11 16:11:38,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:38" (1/1) ... [2019-09-11 16:11:38,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:38" (1/1) ... [2019-09-11 16:11:38,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:38" (1/1) ... [2019-09-11 16:11:38,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:11:38,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:11:38,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:11:38,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:11:38,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:11:38" (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 16:11:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:11:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:11:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:11:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-11 16:11:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:11:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:11:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:11:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-11 16:11:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:11:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:11:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:11:38,467 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:11:38,468 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-11 16:11:38,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:11:38 BoogieIcfgContainer [2019-09-11 16:11:38,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:11:38,470 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:11:38,470 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:11:38,470 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:11:38,471 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:11:38" (1/1) ... [2019-09-11 16:11:38,501 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:11:38,587 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-11 16:11:39,815 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:11:39,840 INFO L272 AbstractInterpreter]: Visited 24 different actions 132 times. Merged at 6 different actions 36 times. Widened at 1 different actions 4 times. Performed 134 root evaluator evaluations with a maximum evaluation depth of 12. Performed 134 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 7 fixpoints after 2 different actions. Largest state had 3 variables. [2019-09-11 16:11:39,840 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:11:39,844 INFO L168 Benchmark]: Toolchain (without parser) took 2086.79 ms. Allocated memory was 142.1 MB in the beginning and 254.3 MB in the end (delta: 112.2 MB). Free memory was 89.2 MB in the beginning and 134.5 MB in the end (delta: -45.4 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2019-09-11 16:11:39,846 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:11:39,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.99 ms. Allocated memory is still 142.1 MB. Free memory was 88.9 MB in the beginning and 79.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:11:39,850 INFO L168 Benchmark]: Boogie Preprocessor took 171.65 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 79.4 MB in the beginning and 180.8 MB in the end (delta: -101.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:11:39,852 INFO L168 Benchmark]: RCFGBuilder took 254.40 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 170.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-09-11 16:11:39,854 INFO L168 Benchmark]: Abstract Interpretation took 1370.12 ms. Allocated memory was 203.4 MB in the beginning and 254.3 MB in the end (delta: 50.9 MB). Free memory was 169.9 MB in the beginning and 134.5 MB in the end (delta: 35.4 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. [2019-09-11 16:11:39,865 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 281.99 ms. Allocated memory is still 142.1 MB. Free memory was 88.9 MB in the beginning and 79.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 171.65 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 79.4 MB in the beginning and 180.8 MB in the end (delta: -101.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 254.40 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 170.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1370.12 ms. Allocated memory was 203.4 MB in the beginning and 254.3 MB in the end (delta: 50.9 MB). Free memory was 169.9 MB in the beginning and 134.5 MB in the end (delta: 35.4 MB). Peak memory consumption was 86.3 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: [L15] unsigned int x = 0; [L17] COND FALSE !(x < 0x0fffffff) [L21] CALL __VERIFIER_assert(x % 2) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...