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/loops/string-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:27:24,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:27:24,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:27:24,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:27:24,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:27:24,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:27:24,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:27:24,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:27:24,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:27:24,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:27:24,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:27:24,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:27:24,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:27:24,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:27:24,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:27:24,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:27:24,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:27:24,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:27:24,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:27:24,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:27:24,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:27:24,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:27:24,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:27:24,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:27:24,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-16 17:27:24,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:27:24,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:27:24,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:27:24,882 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 [2019-09-16 17:27:24,908 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:27:24,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:27:24,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:27:24,910 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:27:24,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:27:24,910 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:27:24,911 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:27:24,911 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:27:24,911 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:27:24,911 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:27:24,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:27:24,914 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:27:24,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:27:24,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:27:24,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:27:24,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:27:24,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:27:24,915 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:27:24,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:27:24,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:27:24,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:27:24,916 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:27:24,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:27:24,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:27:24,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:27:24,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:27:24,917 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:27:24,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:27:24,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:27:24,918 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:27:24,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:27:24,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:27:24,991 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:27:24,993 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:27:24,993 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:27:24,994 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/string-2.i [2019-09-16 17:27:25,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/affa30180/e759ff183b9e430ab59457032fc8ca6e/FLAGc0313d2cc [2019-09-16 17:27:25,540 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:27:25,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/string-2.i [2019-09-16 17:27:25,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/affa30180/e759ff183b9e430ab59457032fc8ca6e/FLAGc0313d2cc [2019-09-16 17:27:25,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/affa30180/e759ff183b9e430ab59457032fc8ca6e [2019-09-16 17:27:25,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:27:25,902 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:27:25,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:27:25,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:27:25,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:27:25,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:27:25" (1/1) ... [2019-09-16 17:27:25,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d84dd2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:25, skipping insertion in model container [2019-09-16 17:27:25,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:27:25" (1/1) ... [2019-09-16 17:27:25,919 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:27:25,945 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:27:26,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:27:26,226 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:27:26,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:27:26,377 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:27:26,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:26 WrapperNode [2019-09-16 17:27:26,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:27:26,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:27:26,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:27:26,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:27:26,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:26" (1/1) ... [2019-09-16 17:27:26,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:26" (1/1) ... [2019-09-16 17:27:26,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:26" (1/1) ... [2019-09-16 17:27:26,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:26" (1/1) ... [2019-09-16 17:27:26,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:26" (1/1) ... [2019-09-16 17:27:26,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:26" (1/1) ... [2019-09-16 17:27:26,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:26" (1/1) ... [2019-09-16 17:27:26,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:27:26,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:27:26,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:27:26,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:27:26,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:27:26" (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 [2019-09-16 17:27:26,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:27:26,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:27:26,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-16 17:27:26,515 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:27:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:27:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-16 17:27:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-16 17:27:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-16 17:27:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:27:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:27:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:27:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:27:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:27:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:27:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:27:26,812 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:27:26,813 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:27:26,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:27:26 BoogieIcfgContainer [2019-09-16 17:27:26,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:27:26,816 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-16 17:27:26,816 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-16 17:27:26,816 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-16 17:27:26,817 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:27:26" (1/1) ... [2019-09-16 17:27:26,874 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:27:26,953 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:27:26,959 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 36 variables. [2019-09-16 17:27:26,959 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-16 17:27:26,962 INFO L168 Benchmark]: Toolchain (without parser) took 1059.13 ms. Allocated memory was 137.4 MB in the beginning and 198.7 MB in the end (delta: 61.3 MB). Free memory was 87.3 MB in the beginning and 151.0 MB in the end (delta: -63.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:27:26,964 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 137.4 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:27:26,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.51 ms. Allocated memory was 137.4 MB in the beginning and 198.7 MB in the end (delta: 61.3 MB). Free memory was 87.1 MB in the beginning and 177.1 MB in the end (delta: -90.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:27:26,966 INFO L168 Benchmark]: Boogie Preprocessor took 72.12 ms. Allocated memory is still 198.7 MB. Free memory was 177.1 MB in the beginning and 174.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:27:26,967 INFO L168 Benchmark]: RCFGBuilder took 360.80 ms. Allocated memory is still 198.7 MB. Free memory was 174.7 MB in the beginning and 156.6 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:27:26,968 INFO L168 Benchmark]: Abstract Interpretation took 143.50 ms. Allocated memory is still 198.7 MB. Free memory was 156.0 MB in the beginning and 151.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:27:26,973 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 137.4 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 478.51 ms. Allocated memory was 137.4 MB in the beginning and 198.7 MB in the end (delta: 61.3 MB). Free memory was 87.1 MB in the beginning and 177.1 MB in the end (delta: -90.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.12 ms. Allocated memory is still 198.7 MB. Free memory was 177.1 MB in the beginning and 174.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 360.80 ms. Allocated memory is still 198.7 MB. Free memory was 174.7 MB in the beginning and 156.6 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 143.50 ms. Allocated memory is still 198.7 MB. Free memory was 156.0 MB in the beginning and 151.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location RESULT: Ultimate proved your program to be correct! Received shutdown request...