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/ldv-regression/test20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:48:51,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:48:51,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:48:51,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:48:51,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:48:51,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:48:51,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:48:51,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:48:51,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:48:51,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:48:51,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:48:51,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:48:51,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:48:51,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:48:51,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:48:51,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:48:51,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:48:51,957 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 13:48:51,979 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:48:51,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:48:51,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:48:51,980 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:48:51,981 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:48:51,981 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:48:51,981 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:48:51,981 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:48:51,982 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:48:51,982 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:48:51,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:48:51,984 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:48:51,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:48:51,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:48:51,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:48:51,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:48:51,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:48:51,985 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:48:51,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:48:51,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:48:51,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:48:51,988 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:48:51,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:48:51,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:48:51,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:48:51,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:48:51,991 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:48:51,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:48:51,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:48:51,992 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:48:52,051 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:48:52,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:48:52,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:48:52,072 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:48:52,073 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:48:52,074 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test20.c [2019-09-20 13:48:52,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb11c131f/0e68f0a090694d46b5ee5e6f4a4397df/FLAG6de37abff [2019-09-20 13:48:52,572 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:48:52,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test20.c [2019-09-20 13:48:52,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb11c131f/0e68f0a090694d46b5ee5e6f4a4397df/FLAG6de37abff [2019-09-20 13:48:52,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb11c131f/0e68f0a090694d46b5ee5e6f4a4397df [2019-09-20 13:48:52,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:48:52,970 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:48:52,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:48:52,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:48:52,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:48:52,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:52" (1/1) ... [2019-09-20 13:48:52,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b5cfec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:52, skipping insertion in model container [2019-09-20 13:48:52,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:48:52" (1/1) ... [2019-09-20 13:48:52,991 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:48:53,006 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:48:53,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:48:53,168 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:48:53,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:48:53,219 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:48:53,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:53 WrapperNode [2019-09-20 13:48:53,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:48:53,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:48:53,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:48:53,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:48:53,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:53" (1/1) ... [2019-09-20 13:48:53,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:53" (1/1) ... [2019-09-20 13:48:53,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:53" (1/1) ... [2019-09-20 13:48:53,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:53" (1/1) ... [2019-09-20 13:48:53,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:53" (1/1) ... [2019-09-20 13:48:53,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:53" (1/1) ... [2019-09-20 13:48:53,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:53" (1/1) ... [2019-09-20 13:48:53,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:48:53,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:48:53,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:48:53,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:48:53,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:48:53" (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 13:48:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:48:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:48:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2019-09-20 13:48:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:48:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:48:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2019-09-20 13:48:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:48:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:48:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:48:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:48:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:48:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:48:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:48:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:48:53,606 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:48:53,606 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:48:53,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:53 BoogieIcfgContainer [2019-09-20 13:48:53,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:48:53,609 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:48:53,609 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:48:53,609 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:48:53,610 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:48:53" (1/1) ... [2019-09-20 13:48:53,638 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:48:53,712 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:48:53,717 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 13 root evaluator evaluations with a maximum evaluation depth of 0. Performed 13 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 20 variables. [2019-09-20 13:48:53,718 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:48:53,721 INFO L168 Benchmark]: Toolchain (without parser) took 749.55 ms. Allocated memory was 139.5 MB in the beginning and 199.8 MB in the end (delta: 60.3 MB). Free memory was 85.7 MB in the beginning and 160.0 MB in the end (delta: -74.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:48:53,722 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:48:53,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.12 ms. Allocated memory is still 139.5 MB. Free memory was 85.5 MB in the beginning and 76.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:53,724 INFO L168 Benchmark]: Boogie Preprocessor took 121.59 ms. Allocated memory was 139.5 MB in the beginning and 199.8 MB in the end (delta: 60.3 MB). Free memory was 76.2 MB in the beginning and 177.7 MB in the end (delta: -101.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:53,725 INFO L168 Benchmark]: RCFGBuilder took 264.91 ms. Allocated memory is still 199.8 MB. Free memory was 177.7 MB in the beginning and 164.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:53,726 INFO L168 Benchmark]: Abstract Interpretation took 108.72 ms. Allocated memory is still 199.8 MB. Free memory was 164.7 MB in the beginning and 160.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:48:53,731 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 139.5 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 247.12 ms. Allocated memory is still 139.5 MB. Free memory was 85.5 MB in the beginning and 76.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.59 ms. Allocated memory was 139.5 MB in the beginning and 199.8 MB in the end (delta: 60.3 MB). Free memory was 76.2 MB in the beginning and 177.7 MB in the end (delta: -101.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 264.91 ms. Allocated memory is still 199.8 MB. Free memory was 177.7 MB in the beginning and 164.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 108.72 ms. Allocated memory is still 199.8 MB. Free memory was 164.7 MB in the beginning and 160.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 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: 10]: 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...