/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationInline.xml -s ../../../trunk/examples/settings/ai/thread-modular/svcomp-Reach-32bit-Automizer_Default+AIv2_OCT_FLOW_SENSITIVE_FILTERED.epf -i ../../../trunk/examples/concurrent/bpl/regression/example_multiple_interleavings.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.absint-concur-c9b613c-m [2022-09-21 14:26:13,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-21 14:26:13,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-21 14:26:13,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-21 14:26:13,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-21 14:26:13,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-21 14:26:13,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-21 14:26:13,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-21 14:26:13,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-21 14:26:13,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-21 14:26:13,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-21 14:26:13,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-21 14:26:13,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-21 14:26:13,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-21 14:26:13,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-21 14:26:13,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-21 14:26:13,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-21 14:26:13,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-21 14:26:13,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-21 14:26:13,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-21 14:26:13,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-21 14:26:13,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-21 14:26:13,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-21 14:26:13,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-21 14:26:13,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-21 14:26:13,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-21 14:26:13,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-21 14:26:13,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-21 14:26:13,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-21 14:26:13,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-21 14:26:13,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-21 14:26:13,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-21 14:26:13,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-21 14:26:13,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-21 14:26:13,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-21 14:26:13,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-21 14:26:13,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-21 14:26:13,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-21 14:26:13,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-21 14:26:13,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-21 14:26:13,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-21 14:26:13,499 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/thread-modular/svcomp-Reach-32bit-Automizer_Default+AIv2_OCT_FLOW_SENSITIVE_FILTERED.epf [2022-09-21 14:26:13,518 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-21 14:26:13,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-21 14:26:13,519 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-21 14:26:13,519 INFO L138 SettingsManager]: * Log level for plugins=info [2022-09-21 14:26:13,520 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-21 14:26:13,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-21 14:26:13,520 INFO L138 SettingsManager]: * User list type=DISABLED [2022-09-21 14:26:13,520 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2022-09-21 14:26:13,521 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2022-09-21 14:26:13,521 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-09-21 14:26:13,521 INFO L138 SettingsManager]: * Computation of Interferences for Sequential Abstract Interpretation of each procedure=FLOW_SENSITIVE_FILTERED [2022-09-21 14:26:13,521 INFO L138 SettingsManager]: * Abstract domain=OctagonDomain [2022-09-21 14:26:13,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-21 14:26:13,522 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-21 14:26:13,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-21 14:26:13,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-21 14:26:13,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-21 14:26:13,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-21 14:26:13,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-21 14:26:13,523 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-21 14:26:13,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-21 14:26:13,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-21 14:26:13,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-21 14:26:13,524 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2022-09-21 14:26:13,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-21 14:26:13,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:26:13,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-21 14:26:13,525 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-09-21 14:26:13,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-21 14:26:13,525 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2022-09-21 14:26:13,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-21 14:26:13,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-21 14:26:13,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-21 14:26:13,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-21 14:26:13,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-21 14:26:13,747 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-21 14:26:13,750 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-21 14:26:13,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example_multiple_interleavings.bpl [2022-09-21 14:26:13,751 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example_multiple_interleavings.bpl' [2022-09-21 14:26:13,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-21 14:26:13,771 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-21 14:26:13,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-21 14:26:13,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-21 14:26:13,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-21 14:26:13,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:13" (1/1) ... [2022-09-21 14:26:13,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:13" (1/1) ... [2022-09-21 14:26:13,792 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-21 14:26:13,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-21 14:26:13,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-21 14:26:13,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-21 14:26:13,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-21 14:26:13,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:13" (1/1) ... [2022-09-21 14:26:13,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:13" (1/1) ... [2022-09-21 14:26:13,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:13" (1/1) ... [2022-09-21 14:26:13,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:13" (1/1) ... [2022-09-21 14:26:13,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:13" (1/1) ... [2022-09-21 14:26:13,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:13" (1/1) ... [2022-09-21 14:26:13,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:13" (1/1) ... [2022-09-21 14:26:13,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-21 14:26:13,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-21 14:26:13,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-21 14:26:13,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-21 14:26:13,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:13" (1/1) ... [2022-09-21 14:26:13,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:26:13,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:26:13,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-21 14:26:13,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-21 14:26:13,864 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_y given in one single declaration [2022-09-21 14:26:13,865 INFO L130 BoogieDeclarations]: Found specification of procedure set_y [2022-09-21 14:26:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure set_y [2022-09-21 14:26:13,865 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_x_1 given in one single declaration [2022-09-21 14:26:13,865 INFO L130 BoogieDeclarations]: Found specification of procedure set_x_1 [2022-09-21 14:26:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure set_x_1 [2022-09-21 14:26:13,866 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_x_0 given in one single declaration [2022-09-21 14:26:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure set_x_0 [2022-09-21 14:26:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure set_x_0 [2022-09-21 14:26:13,866 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-21 14:26:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-21 14:26:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-21 14:26:13,867 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-21 14:26:13,900 INFO L234 CfgBuilder]: Building ICFG [2022-09-21 14:26:13,902 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-21 14:26:13,967 INFO L275 CfgBuilder]: Performing block encoding [2022-09-21 14:26:13,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-21 14:26:13,973 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-21 14:26:13,974 INFO L202 PluginConnector]: Adding new model example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:26:13 BoogieIcfgContainer [2022-09-21 14:26:13,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-21 14:26:13,975 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2022-09-21 14:26:13,975 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2022-09-21 14:26:13,976 INFO L275 PluginConnector]: Abstract Interpretation initialized [2022-09-21 14:26:13,979 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:26:13" (1/1) ... [2022-09-21 14:26:14,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-21 14:26:14,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:26:14,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-21 14:26:14,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-21 14:26:14,115 INFO L129 ointEngineConcurrent]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:14,116 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 1 [2022-09-21 14:26:14,117 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:14,143 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:14,146 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:14,149 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:14,151 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 2 [2022-09-21 14:26:14,151 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for ULTIMATE.start with variables: [y] [2022-09-21 14:26:14,152 INFO L631 ngineConcurrentUtils]: Start checking 6 possible combinations. [2022-09-21 14:26:14,153 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/6 [2022-09-21 14:26:14,266 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:26:14,266 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/6 [2022-09-21 14:26:14,454 INFO L642 ngineConcurrentUtils]: Filter Iteration 3/6 [2022-09-21 14:26:14,537 INFO L642 ngineConcurrentUtils]: Filter Iteration 4/6 [2022-09-21 14:26:14,598 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:26:14,599 INFO L642 ngineConcurrentUtils]: Filter Iteration 5/6 [2022-09-21 14:26:14,699 INFO L642 ngineConcurrentUtils]: Filter Iteration 6/6 [2022-09-21 14:26:14,794 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:26:14,794 INFO L651 ngineConcurrentUtils]: Number of combinations: 3 [2022-09-21 14:26:14,794 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for ULTIMATE.start with variables: [x] [2022-09-21 14:26:14,794 INFO L631 ngineConcurrentUtils]: Start checking 6 possible combinations. [2022-09-21 14:26:14,795 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/6 [2022-09-21 14:26:14,852 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:26:14,852 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/6 [2022-09-21 14:26:15,020 INFO L642 ngineConcurrentUtils]: Filter Iteration 3/6 [2022-09-21 14:26:15,113 INFO L642 ngineConcurrentUtils]: Filter Iteration 4/6 [2022-09-21 14:26:15,222 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:26:15,222 INFO L642 ngineConcurrentUtils]: Filter Iteration 5/6 [2022-09-21 14:26:15,313 INFO L642 ngineConcurrentUtils]: Filter Iteration 6/6 [2022-09-21 14:26:15,426 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:26:15,426 INFO L651 ngineConcurrentUtils]: Number of combinations: 3 [2022-09-21 14:26:15,429 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:15,430 INFO L396 ointEngineConcurrent]: Reduced size from 3 to 1 [2022-09-21 14:26:15,430 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:15,447 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for set_x_1 with variables: [y] [2022-09-21 14:26:15,448 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:26:15,448 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for set_x_1 with variables: [x] [2022-09-21 14:26:15,448 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:26:15,448 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:15,448 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:26:15,448 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for set_y with variables: [y] [2022-09-21 14:26:15,448 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:26:15,448 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for set_y with variables: [x] [2022-09-21 14:26:15,449 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:26:15,449 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:15,449 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:26:15,449 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for set_x_0 with variables: [y] [2022-09-21 14:26:15,449 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:26:15,449 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for set_x_0 with variables: [x] [2022-09-21 14:26:15,449 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:26:15,449 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:15,449 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:26:15,452 INFO L320 AbstractInterpreter]: Some error location(s) were reachable [2022-09-21 14:26:15,461 INFO L329 AbstractInterpreter]: No benchmarks available [2022-09-21 14:26:15,461 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2022-09-21 14:26:15,463 INFO L158 Benchmark]: Toolchain (without parser) took 1690.91ms. Allocated memory is still 175.1MB. Free memory was 137.0MB in the beginning and 146.6MB in the end (delta: -9.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:15,463 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 175.1MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:15,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.80ms. Allocated memory is still 175.1MB. Free memory was 136.9MB in the beginning and 135.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:26:15,465 INFO L158 Benchmark]: Boogie Preprocessor took 11.59ms. Allocated memory is still 175.1MB. Free memory was 135.3MB in the beginning and 134.4MB in the end (delta: 880.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:26:15,466 INFO L158 Benchmark]: RCFGBuilder took 167.59ms. Allocated memory is still 175.1MB. Free memory was 134.4MB in the beginning and 125.9MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-21 14:26:15,467 INFO L158 Benchmark]: Abstract Interpretation took 1486.01ms. Allocated memory is still 175.1MB. Free memory was 125.8MB in the beginning and 146.7MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:15,473 INFO L339 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 0.16ms. Allocated memory is still 175.1MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.80ms. Allocated memory is still 175.1MB. Free memory was 136.9MB in the beginning and 135.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.59ms. Allocated memory is still 175.1MB. Free memory was 135.3MB in the beginning and 134.4MB in the end (delta: 880.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 167.59ms. Allocated memory is still 175.1MB. Free memory was 134.4MB in the beginning and 125.9MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Abstract Interpretation took 1486.01ms. Allocated memory is still 175.1MB. Free memory was 125.8MB in the beginning and 146.7MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 19]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L13] FORK 0 fork 1 set_x_0(); [L14] FORK 0 fork 2 set_x_1(); [L15] FORK 0 fork 3 set_y(); [L16] JOIN 0 join 1; [L17] JOIN 0 join 2; [L18] JOIN 0 join 3; [L19] 0 assert y == 0 && (x == 0 || x == 1); RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-09-21 14:26:15,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-09-21 14:26:15,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...