java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/concurrent/regression/SimpleIncorrectTwoContextSwitches.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 12:12:23,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 12:12:23,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 12:12:23,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-05 12:12:23,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2019-08-05 12:12:23,088 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-05 12:12:23,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-05 12:12:23,089 INFO L136 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-08-05 12:12:23,089 INFO L138 SettingsManager]: * Show backtranslation warnings=false [2019-08-05 12:12:23,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-08-05 12:12:23,090 INFO L138 SettingsManager]: * User list type=DISABLED [2019-08-05 12:12:23,090 INFO L138 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-08-05 12:12:23,090 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-08-05 12:12:23,090 INFO L138 SettingsManager]: * Explicit value domain=true [2019-08-05 12:12:23,091 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-08-05 12:12:23,091 INFO L138 SettingsManager]: * Octagon Domain=false [2019-08-05 12:12:23,091 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-08-05 12:12:23,091 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-08-05 12:12:23,091 INFO L138 SettingsManager]: * Interval Domain=false [2019-08-05 12:12:23,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-05 12:12:23,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-05 12:12:23,093 INFO L138 SettingsManager]: * Use SBE=true [2019-08-05 12:12:23,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-05 12:12:23,093 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-05 12:12:23,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-05 12:12:23,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-05 12:12:23,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-05 12:12:23,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-05 12:12:23,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-05 12:12:23,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-05 12:12:23,095 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-05 12:12:23,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-05 12:12:23,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-05 12:12:23,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-05 12:12:23,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-05 12:12:23,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-05 12:12:23,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-05 12:12:23,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-05 12:12:23,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-05 12:12:23,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-05 12:12:23,097 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-08-05 12:12:23,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-05 12:12:23,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-05 12:12:23,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-05 12:12:23,097 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-08-05 12:12:23,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 12:12:23,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 12:12:23,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 12:12:23,146 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 12:12:23,146 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 12:12:23,147 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/regression/SimpleIncorrectTwoContextSwitches.bpl [2019-08-05 12:12:23,147 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/regression/SimpleIncorrectTwoContextSwitches.bpl' [2019-08-05 12:12:23,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 12:12:23,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 12:12:23,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 12:12:23,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 12:12:23,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 12:12:23,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:12:23" (1/1) ... [2019-08-05 12:12:23,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:12:23" (1/1) ... [2019-08-05 12:12:23,211 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 12:12:23,211 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 12:12:23,212 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 12:12:23,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 12:12:23,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 12:12:23,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 12:12:23,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 12:12:23,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:12:23" (1/1) ... [2019-08-05 12:12:23,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:12:23" (1/1) ... [2019-08-05 12:12:23,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:12:23" (1/1) ... [2019-08-05 12:12:23,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:12:23" (1/1) ... [2019-08-05 12:12:23,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:12:23" (1/1) ... [2019-08-05 12:12:23,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:12:23" (1/1) ... [2019-08-05 12:12:23,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:12:23" (1/1) ... [2019-08-05 12:12:23,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 12:12:23,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 12:12:23,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 12:12:23,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 12:12:23,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 12:12:23" (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 [2019-08-05 12:12:23,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread2 given in one single declaration [2019-08-05 12:12:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure Thread2 [2019-08-05 12:12:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread2 [2019-08-05 12:12:23,299 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread1 given in one single declaration [2019-08-05 12:12:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure Thread1 [2019-08-05 12:12:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread1 [2019-08-05 12:12:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure ~init [2019-08-05 12:12:23,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ~init [2019-08-05 12:12:23,444 INFO L275 CfgBuilder]: Using library mode [2019-08-05 12:12:23,444 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 12:12:23,445 INFO L202 PluginConnector]: Adding new model SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:12:23 BoogieIcfgContainer [2019-08-05 12:12:23,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 12:12:23,446 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-08-05 12:12:23,446 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-08-05 12:12:23,447 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-08-05 12:12:23,448 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "SimpleIncorrectTwoContextSwitches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 12:12:23" (1/1) ... [2019-08-05 12:12:23,473 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-08-05 12:12:23,574 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-08-05 12:12:23,593 INFO L272 AbstractInterpreter]: Visited 9 different actions 21 times. Merged at 3 different actions 9 times. Widened at 1 different actions 1 times. Performed 38 root evaluator evaluations with a maximum evaluation depth of 5. Performed 38 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 2 fixpoints after 2 different actions. Largest state had 0 variables. [2019-08-05 12:12:23,593 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-08-05 12:12:23,596 INFO L168 Benchmark]: Toolchain (without parser) took 416.48 ms. Allocated memory is still 133.7 MB. Free memory was 105.6 MB in the beginning and 86.7 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2019-08-05 12:12:23,598 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 12:12:23,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.10 ms. Allocated memory is still 133.7 MB. Free memory was 105.6 MB in the beginning and 103.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-05 12:12:23,601 INFO L168 Benchmark]: Boogie Preprocessor took 17.08 ms. Allocated memory is still 133.7 MB. Free memory was 103.6 MB in the beginning and 102.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 12:12:23,602 INFO L168 Benchmark]: RCFGBuilder took 213.77 ms. Allocated memory is still 133.7 MB. Free memory was 102.5 MB in the beginning and 93.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-08-05 12:12:23,603 INFO L168 Benchmark]: Abstract Interpretation took 146.86 ms. Allocated memory is still 133.7 MB. Free memory was 93.6 MB in the beginning and 86.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 7.1 GB. [2019-08-05 12:12:23,609 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.10 ms. Allocated memory is still 133.7 MB. Free memory was 105.6 MB in the beginning and 103.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 17.08 ms. Allocated memory is still 133.7 MB. Free memory was 103.6 MB in the beginning and 102.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 213.77 ms. Allocated memory is still 133.7 MB. Free memory was 102.5 MB in the beginning and 93.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 146.86 ms. Allocated memory is still 133.7 MB. Free memory was 93.6 MB in the beginning and 86.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 28]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L23] g := 0; [L26] g := g + 1; [L26] g := g + 1; [L28] assert g != -1; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...