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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/array-crafted/xor4.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:33:11,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:33:11,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:33:11,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:33:11,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:33:11,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:33:11,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:33:11,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:33:11,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:33:11,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:33:11,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:33:11,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:33:11,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:33:11,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:33:11,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:33:11,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:33:11,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:33:11,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:33:11,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:33:11,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:33:11,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:33:11,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:33:11,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:33:11,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:33:11,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:33:11,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:33:11,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:33:11,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:33:11,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:33:11,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:33:11,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:33:11,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:33:11,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:33:11,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:33:11,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:33:11,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:33:11,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:33:11,612 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:33:11,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:33:11,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:33:11,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:33:11,614 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:33:11,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:33:11,614 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:33:11,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:33:11,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:33:11,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:33:11,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:33:11,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:33:11,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:33:11,619 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:33:11,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:33:11,619 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:33:11,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:33:11,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:33:11,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:33:11,620 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:33:11,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:33:11,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:33:11,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:33:11,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:33:11,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:33:11,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:33:11,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:33:11,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:33:11,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-10-15 03:33:11,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:33:11,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:33:11,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:33:11,952 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:33:11,952 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:33:11,953 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/xor4.i [2019-10-15 03:33:12,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9bba3555/5c6005095f2c4c3bbff7f4657e71c366/FLAG20b0b4ec2 [2019-10-15 03:33:12,466 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:33:12,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/xor4.i [2019-10-15 03:33:12,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9bba3555/5c6005095f2c4c3bbff7f4657e71c366/FLAG20b0b4ec2 [2019-10-15 03:33:12,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9bba3555/5c6005095f2c4c3bbff7f4657e71c366 [2019-10-15 03:33:12,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:33:12,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:33:12,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:33:12,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:33:12,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:33:12,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:33:12" (1/1) ... [2019-10-15 03:33:12,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b5ff0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:33:12, skipping insertion in model container [2019-10-15 03:33:12,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:33:12" (1/1) ... [2019-10-15 03:33:12,851 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:33:12,871 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:33:13,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:33:13,105 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:33:13,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:33:13,252 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:33:13,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:33:13 WrapperNode [2019-10-15 03:33:13,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:33:13,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:33:13,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:33:13,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:33:13,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:33:13" (1/1) ... [2019-10-15 03:33:13,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:33:13" (1/1) ... [2019-10-15 03:33:13,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:33:13" (1/1) ... [2019-10-15 03:33:13,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:33:13" (1/1) ... [2019-10-15 03:33:13,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:33:13" (1/1) ... [2019-10-15 03:33:13,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:33:13" (1/1) ... [2019-10-15 03:33:13,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:33:13" (1/1) ... [2019-10-15 03:33:13,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:33:13,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:33:13,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:33:13,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:33:13,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:33:13" (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 [2019-10-15 03:33:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:33:13,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:33:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure xor [2019-10-15 03:33:13,365 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:33:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:33:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:33:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure xor [2019-10-15 03:33:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:33:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:33:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:33:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:33:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:33:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:33:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:33:13,638 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:33:13,639 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-15 03:33:13,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:33:13 BoogieIcfgContainer [2019-10-15 03:33:13,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:33:13,641 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-15 03:33:13,642 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-15 03:33:13,642 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-15 03:33:13,643 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:33:13" (1/1) ... [2019-10-15 03:33:13,711 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 03:33:13,781 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 03:33:13,787 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 31 variables. [2019-10-15 03:33:13,787 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-15 03:33:13,791 INFO L168 Benchmark]: Toolchain (without parser) took 955.93 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 104.2 MB in the beginning and 159.9 MB in the end (delta: -55.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-10-15 03:33:13,793 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:33:13,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.83 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 104.0 MB in the beginning and 184.8 MB in the end (delta: -80.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-10-15 03:33:13,796 INFO L168 Benchmark]: Boogie Preprocessor took 57.73 ms. Allocated memory is still 204.5 MB. Free memory was 183.9 MB in the beginning and 181.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-10-15 03:33:13,797 INFO L168 Benchmark]: RCFGBuilder took 329.05 ms. Allocated memory is still 204.5 MB. Free memory was 181.1 MB in the beginning and 165.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-10-15 03:33:13,799 INFO L168 Benchmark]: Abstract Interpretation took 146.01 ms. Allocated memory is still 204.5 MB. Free memory was 165.1 MB in the beginning and 159.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2019-10-15 03:33:13,807 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 418.83 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 104.0 MB in the beginning and 184.8 MB in the end (delta: -80.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.73 ms. Allocated memory is still 204.5 MB. Free memory was 183.9 MB in the beginning and 181.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 329.05 ms. Allocated memory is still 204.5 MB. Free memory was 181.1 MB in the beginning and 165.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 146.01 ms. Allocated memory is still 204.5 MB. Free memory was 165.1 MB in the beginning and 159.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 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: 42]: 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...