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-invariants/even.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 12:38:16,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 12:38:16,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 12:38:16,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 12:38:16,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 12:38:16,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 12:38:16,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 12:38:16,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 12:38:16,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 12:38:16,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 12:38:16,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 12:38:16,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 12:38:16,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 12:38:16,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 12:38:16,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 12:38:16,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 12:38:16,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 12:38:16,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 12:38:16,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 12:38:16,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 12:38:16,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 12:38:16,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 12:38:16,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 12:38:16,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 12:38:16,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 12:38:16,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 12:38:16,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 12:38:16,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 12:38:16,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 12:38:16,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 12:38:16,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 12:38:16,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 12:38:16,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 12:38:16,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 12:38:16,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 12:38:16,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 12:38:16,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 12:38:16,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 12:38:16,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 12:38:16,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 12:38:16,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 12:38:16,866 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 [2019-10-03 12:38:16,886 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 12:38:16,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 12:38:16,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 12:38:16,888 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 12:38:16,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 12:38:16,889 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 12:38:16,890 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 12:38:16,890 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 12:38:16,890 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 12:38:16,890 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 12:38:16,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 12:38:16,891 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 12:38:16,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 12:38:16,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 12:38:16,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 12:38:16,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 12:38:16,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 12:38:16,893 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 12:38:16,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 12:38:16,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 12:38:16,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 12:38:16,895 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 12:38:16,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 12:38:16,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 12:38:16,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 12:38:16,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 12:38:16,896 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 12:38:16,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 12:38:16,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 12:38:16,896 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 12:38:16,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 12:38:16,963 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 12:38:16,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 12:38:16,969 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 12:38:16,973 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 12:38:16,974 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/even.c [2019-10-03 12:38:17,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a24c7b93/9b577e91c3534b57b04b373ef3c177d9/FLAGad2329a5b [2019-10-03 12:38:17,518 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 12:38:17,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/even.c [2019-10-03 12:38:17,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a24c7b93/9b577e91c3534b57b04b373ef3c177d9/FLAGad2329a5b [2019-10-03 12:38:17,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a24c7b93/9b577e91c3534b57b04b373ef3c177d9 [2019-10-03 12:38:17,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 12:38:17,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 12:38:17,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 12:38:17,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 12:38:17,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 12:38:17,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb0bc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:17, skipping insertion in model container [2019-10-03 12:38:17,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:38:17" (1/1) ... [2019-10-03 12:38:17,927 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 12:38:17,941 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 12:38:18,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:38:18,166 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 12:38:18,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:38:18,197 INFO L192 MainTranslator]: Completed translation [2019-10-03 12:38:18,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:18 WrapperNode [2019-10-03 12:38:18,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 12:38:18,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 12:38:18,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 12:38:18,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 12:38:18,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:18" (1/1) ... [2019-10-03 12:38:18,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:18" (1/1) ... [2019-10-03 12:38:18,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:18" (1/1) ... [2019-10-03 12:38:18,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:18" (1/1) ... [2019-10-03 12:38:18,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:18" (1/1) ... [2019-10-03 12:38:18,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:18" (1/1) ... [2019-10-03 12:38:18,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:18" (1/1) ... [2019-10-03 12:38:18,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 12:38:18,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 12:38:18,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 12:38:18,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 12:38:18,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:18" (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 [2019-10-03 12:38:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 12:38:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 12:38:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 12:38:18,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 12:38:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 12:38:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 12:38:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 12:38:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 12:38:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 12:38:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 12:38:18,532 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 12:38:18,532 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-03 12:38:18,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:38:18 BoogieIcfgContainer [2019-10-03 12:38:18,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 12:38:18,534 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-03 12:38:18,535 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-03 12:38:18,535 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-03 12:38:18,536 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:38:18" (1/1) ... [2019-10-03 12:38:18,559 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 12:38:18,644 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-03 12:38:20,732 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 12:38:20,765 INFO L272 AbstractInterpreter]: Visited 21 different actions 126 times. Merged at 6 different actions 42 times. Widened at 1 different actions 3 times. Performed 149 root evaluator evaluations with a maximum evaluation depth of 13. Performed 149 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 8 fixpoints after 2 different actions. Largest state had 3 variables. [2019-10-03 12:38:20,765 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-03 12:38:20,780 INFO L168 Benchmark]: Toolchain (without parser) took 2857.64 ms. Allocated memory was 140.5 MB in the beginning and 313.0 MB in the end (delta: 172.5 MB). Free memory was 88.2 MB in the beginning and 214.7 MB in the end (delta: -126.5 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:20,782 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 12:38:20,783 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.06 ms. Allocated memory is still 140.5 MB. Free memory was 88.0 MB in the beginning and 78.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:20,784 INFO L168 Benchmark]: Boogie Preprocessor took 126.67 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 78.7 MB in the beginning and 177.9 MB in the end (delta: -99.2 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:20,785 INFO L168 Benchmark]: RCFGBuilder took 208.80 ms. Allocated memory is still 200.3 MB. Free memory was 177.9 MB in the beginning and 167.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:20,787 INFO L168 Benchmark]: Abstract Interpretation took 2231.05 ms. Allocated memory was 200.3 MB in the beginning and 313.0 MB in the end (delta: 112.7 MB). Free memory was 167.3 MB in the beginning and 214.7 MB in the end (delta: -47.5 MB). Peak memory consumption was 65.3 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:20,791 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 140.5 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.06 ms. Allocated memory is still 140.5 MB. Free memory was 88.0 MB in the beginning and 78.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.67 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 78.7 MB in the beginning and 177.9 MB in the end (delta: -99.2 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 208.80 ms. Allocated memory is still 200.3 MB. Free memory was 177.9 MB in the beginning and 167.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 2231.05 ms. Allocated memory was 200.3 MB in the beginning and 313.0 MB in the end (delta: 112.7 MB). Free memory was 167.3 MB in the beginning and 214.7 MB in the end (delta: -47.5 MB). Peak memory consumption was 65.3 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: [L10] unsigned int x = 0; [L11] COND FALSE !(__VERIFIER_nondet_int()) [L14] 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...