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/phases_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:26:09,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:26:09,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:26:09,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 21:26:09,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:26:09,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:26:09,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:26:09,190 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 [2019-09-03 21:26:09,207 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:26:09,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:26:09,208 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:26:09,208 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:26:09,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:26:09,209 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:26:09,209 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:26:09,209 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:26:09,210 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:26:09,210 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:26:09,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:26:09,211 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:26:09,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:26:09,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:26:09,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:26:09,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:26:09,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:26:09,212 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:26:09,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:26:09,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:26:09,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:26:09,213 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:26:09,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:26:09,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:26:09,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:26:09,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:26:09,214 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:26:09,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:26:09,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:26:09,215 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:26:09,255 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:26:09,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:26:09,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:26:09,277 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:26:09,277 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:26:09,278 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-09-03 21:26:09,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/622c0a81f/680aff9b11d0471cba8ba99092fe0dff/FLAG8278cf146 [2019-09-03 21:26:09,849 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:26:09,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-09-03 21:26:09,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/622c0a81f/680aff9b11d0471cba8ba99092fe0dff/FLAG8278cf146 [2019-09-03 21:26:10,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/622c0a81f/680aff9b11d0471cba8ba99092fe0dff [2019-09-03 21:26:10,201 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:26:10,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:26:10,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:10,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:26:10,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:26:10,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cee7410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:10, skipping insertion in model container [2019-09-03 21:26:10,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,222 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:26:10,240 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:26:10,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:10,415 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:26:10,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:10,444 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:26:10,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:10 WrapperNode [2019-09-03 21:26:10,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:10,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:26:10,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:26:10,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:26:10,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:26:10,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:26:10,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:26:10,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:26:10,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:10" (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 [2019-09-03 21:26:10,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:26:10,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:26:10,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:26:10,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:26:10,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:26:10,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-03 21:26:10,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-03 21:26:10,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:26:10,623 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:26:10,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:26:10,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:26:10,810 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:26:10,811 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:26:10,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:10 BoogieIcfgContainer [2019-09-03 21:26:10,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:26:10,813 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:26:10,813 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:26:10,814 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:26:10,815 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:10" (1/1) ... [2019-09-03 21:26:10,846 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:26:10,954 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:26:11,367 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:26:11,391 INFO L272 AbstractInterpreter]: Visited 23 different actions 86 times. Merged at 8 different actions 24 times. Widened at 1 different actions 2 times. Performed 97 root evaluator evaluations with a maximum evaluation depth of 12. Performed 97 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 10 fixpoints after 3 different actions. Largest state had 5 variables. [2019-09-03 21:26:11,392 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:26:11,397 INFO L168 Benchmark]: Toolchain (without parser) took 1191.51 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 88.9 MB in the beginning and 124.1 MB in the end (delta: -35.2 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,398 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.31 ms. Allocated memory is still 132.6 MB. Free memory was 88.6 MB in the beginning and 79.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,403 INFO L168 Benchmark]: Boogie Preprocessor took 126.60 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 79.1 MB in the beginning and 175.8 MB in the end (delta: -96.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,405 INFO L168 Benchmark]: RCFGBuilder took 240.58 ms. Allocated memory is still 199.2 MB. Free memory was 175.8 MB in the beginning and 164.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,406 INFO L168 Benchmark]: Abstract Interpretation took 578.72 ms. Allocated memory is still 199.2 MB. Free memory was 164.6 MB in the beginning and 124.1 MB in the end (delta: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:11,417 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 132.6 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.31 ms. Allocated memory is still 132.6 MB. Free memory was 88.6 MB in the beginning and 79.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.60 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 79.1 MB in the beginning and 175.8 MB in the end (delta: -96.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 240.58 ms. Allocated memory is still 199.2 MB. Free memory was 175.8 MB in the beginning and 164.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 578.72 ms. Allocated memory is still 199.2 MB. Free memory was 164.6 MB in the beginning and 124.1 MB in the end (delta: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 7]: 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: [L13] unsigned int x = 1; [L14] unsigned int y = __VERIFIER_nondet_uint(); [L16] COND FALSE !(!(y > 0)) [L18] COND FALSE !(x < y) [L26] CALL __VERIFIER_assert(x != y) [L6] COND TRUE !(cond) [L7] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...