/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/absint/test1_unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.absint-concur-c9b613c-m [2022-09-21 14:26:04,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-21 14:26:04,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-21 14:26:04,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-21 14:26:04,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-21 14:26:04,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-21 14:26:04,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-21 14:26:04,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-21 14:26:04,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-21 14:26:04,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-21 14:26:04,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-21 14:26:04,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-21 14:26:04,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-21 14:26:04,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-21 14:26:04,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-21 14:26:04,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-21 14:26:04,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-21 14:26:04,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-21 14:26:04,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-21 14:26:04,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-21 14:26:04,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-21 14:26:04,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-21 14:26:04,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-21 14:26:04,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-21 14:26:04,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-21 14:26:04,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-21 14:26:04,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-21 14:26:04,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-21 14:26:04,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-21 14:26:04,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-21 14:26:04,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-21 14:26:04,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-21 14:26:04,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-21 14:26:04,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-21 14:26:04,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-21 14:26:04,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-21 14:26:04,592 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 14:26:04,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-21 14:26:04,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-21 14:26:04,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-21 14:26:04,625 INFO L138 SettingsManager]: * Log level for plugins=info [2022-09-21 14:26:04,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-21 14:26:04,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-21 14:26:04,626 INFO L138 SettingsManager]: * User list type=DISABLED [2022-09-21 14:26:04,626 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2022-09-21 14:26:04,626 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2022-09-21 14:26:04,627 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-09-21 14:26:04,627 INFO L138 SettingsManager]: * Computation of Interferences for Sequential Abstract Interpretation of each procedure=FLOW_SENSITIVE_FILTERED [2022-09-21 14:26:04,627 INFO L138 SettingsManager]: * Abstract domain=OctagonDomain [2022-09-21 14:26:04,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-21 14:26:04,628 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-21 14:26:04,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-21 14:26:04,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-21 14:26:04,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-21 14:26:04,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-21 14:26:04,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-21 14:26:04,629 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-21 14:26:04,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-21 14:26:04,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-21 14:26:04,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-21 14:26:04,629 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2022-09-21 14:26:04,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-21 14:26:04,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:26:04,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-21 14:26:04,630 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-09-21 14:26:04,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-21 14:26:04,630 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2022-09-21 14:26:04,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-21 14:26:04,630 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-21 14:26:04,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-21 14:26:04,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-21 14:26:04,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-21 14:26:04,859 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-21 14:26:04,863 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-21 14:26:04,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/absint/test1_unsafe.bpl [2022-09-21 14:26:04,864 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/absint/test1_unsafe.bpl' [2022-09-21 14:26:04,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-21 14:26:04,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-21 14:26:04,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-21 14:26:04,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-21 14:26:04,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-21 14:26:04,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:04" (1/1) ... [2022-09-21 14:26:04,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:04" (1/1) ... [2022-09-21 14:26:04,900 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-21 14:26:04,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-21 14:26:04,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-21 14:26:04,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-21 14:26:04,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-21 14:26:04,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:04" (1/1) ... [2022-09-21 14:26:04,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:04" (1/1) ... [2022-09-21 14:26:04,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:04" (1/1) ... [2022-09-21 14:26:04,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:04" (1/1) ... [2022-09-21 14:26:04,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:04" (1/1) ... [2022-09-21 14:26:04,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:04" (1/1) ... [2022-09-21 14:26:04,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:04" (1/1) ... [2022-09-21 14:26:04,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-21 14:26:04,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-21 14:26:04,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-21 14:26:04,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-21 14:26:04,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:04" (1/1) ... [2022-09-21 14:26:04,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:26:04,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:26:04,940 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 14:26:04,951 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 14:26:04,978 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-09-21 14:26:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-21 14:26:04,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-21 14:26:04,978 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-21 14:26:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-21 14:26:04,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-21 14:26:04,979 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 14:26:05,018 INFO L234 CfgBuilder]: Building ICFG [2022-09-21 14:26:05,020 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-21 14:26:05,102 INFO L275 CfgBuilder]: Performing block encoding [2022-09-21 14:26:05,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-21 14:26:05,108 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-21 14:26:05,110 INFO L202 PluginConnector]: Adding new model test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:26:05 BoogieIcfgContainer [2022-09-21 14:26:05,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-21 14:26:05,111 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2022-09-21 14:26:05,111 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2022-09-21 14:26:05,111 INFO L275 PluginConnector]: Abstract Interpretation initialized [2022-09-21 14:26:05,112 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "test1_unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:26:05" (1/1) ... [2022-09-21 14:26:05,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-21 14:26:05,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:26:05,150 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 14:26:05,151 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 14:26:05,177 INFO L129 ointEngineConcurrent]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,178 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 1 [2022-09-21 14:26:05,179 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,311 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,319 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 2 [2022-09-21 14:26:05,319 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for ULTIMATE.start with variables: [y, x] [2022-09-21 14:26:05,320 INFO L631 ngineConcurrentUtils]: Start checking 9 possible combinations. [2022-09-21 14:26:05,320 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/9 [2022-09-21 14:26:05,327 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/9 [2022-09-21 14:26:05,332 INFO L642 ngineConcurrentUtils]: Filter Iteration 3/9 [2022-09-21 14:26:05,336 INFO L642 ngineConcurrentUtils]: Filter Iteration 4/9 [2022-09-21 14:26:05,340 INFO L642 ngineConcurrentUtils]: Filter Iteration 5/9 [2022-09-21 14:26:05,344 INFO L642 ngineConcurrentUtils]: Filter Iteration 6/9 [2022-09-21 14:26:05,347 INFO L642 ngineConcurrentUtils]: Filter Iteration 7/9 [2022-09-21 14:26:05,352 INFO L642 ngineConcurrentUtils]: Filter Iteration 8/9 [2022-09-21 14:26:05,357 INFO L642 ngineConcurrentUtils]: Filter Iteration 9/9 [2022-09-21 14:26:05,362 INFO L651 ngineConcurrentUtils]: Number of combinations: 9 [2022-09-21 14:26:05,363 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:05,369 INFO L396 ointEngineConcurrent]: Reduced size from 9 to 4 [2022-09-21 14:26:05,370 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,389 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,409 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,426 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,440 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread1 with variables: [y, x] [2022-09-21 14:26:05,440 INFO L631 ngineConcurrentUtils]: Start checking 32 possible combinations. [2022-09-21 14:26:05,440 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/32 [2022-09-21 14:26:05,446 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/32 [2022-09-21 14:26:05,450 INFO L642 ngineConcurrentUtils]: Filter Iteration 3/32 [2022-09-21 14:26:05,455 INFO L642 ngineConcurrentUtils]: Filter Iteration 4/32 [2022-09-21 14:26:05,460 INFO L642 ngineConcurrentUtils]: Filter Iteration 5/32 [2022-09-21 14:26:05,465 INFO L642 ngineConcurrentUtils]: Filter Iteration 6/32 [2022-09-21 14:26:05,470 INFO L642 ngineConcurrentUtils]: Filter Iteration 7/32 [2022-09-21 14:26:05,474 INFO L642 ngineConcurrentUtils]: Filter Iteration 8/32 [2022-09-21 14:26:05,479 INFO L642 ngineConcurrentUtils]: Filter Iteration 9/32 [2022-09-21 14:26:05,484 INFO L642 ngineConcurrentUtils]: Filter Iteration 10/32 [2022-09-21 14:26:05,489 INFO L642 ngineConcurrentUtils]: Filter Iteration 11/32 [2022-09-21 14:26:05,493 INFO L642 ngineConcurrentUtils]: Filter Iteration 12/32 [2022-09-21 14:26:05,498 INFO L642 ngineConcurrentUtils]: Filter Iteration 13/32 [2022-09-21 14:26:05,503 INFO L642 ngineConcurrentUtils]: Filter Iteration 14/32 [2022-09-21 14:26:05,507 INFO L642 ngineConcurrentUtils]: Filter Iteration 15/32 [2022-09-21 14:26:05,512 INFO L642 ngineConcurrentUtils]: Filter Iteration 16/32 [2022-09-21 14:26:05,516 INFO L642 ngineConcurrentUtils]: Filter Iteration 17/32 [2022-09-21 14:26:05,521 INFO L642 ngineConcurrentUtils]: Filter Iteration 18/32 [2022-09-21 14:26:05,526 INFO L642 ngineConcurrentUtils]: Filter Iteration 19/32 [2022-09-21 14:26:05,530 INFO L642 ngineConcurrentUtils]: Filter Iteration 20/32 [2022-09-21 14:26:05,535 INFO L642 ngineConcurrentUtils]: Filter Iteration 21/32 [2022-09-21 14:26:05,539 INFO L642 ngineConcurrentUtils]: Filter Iteration 22/32 [2022-09-21 14:26:05,543 INFO L642 ngineConcurrentUtils]: Filter Iteration 23/32 [2022-09-21 14:26:05,548 INFO L642 ngineConcurrentUtils]: Filter Iteration 24/32 [2022-09-21 14:26:05,553 INFO L642 ngineConcurrentUtils]: Filter Iteration 25/32 [2022-09-21 14:26:05,557 INFO L642 ngineConcurrentUtils]: Filter Iteration 26/32 [2022-09-21 14:26:05,562 INFO L642 ngineConcurrentUtils]: Filter Iteration 27/32 [2022-09-21 14:26:05,566 INFO L642 ngineConcurrentUtils]: Filter Iteration 28/32 [2022-09-21 14:26:05,571 INFO L642 ngineConcurrentUtils]: Filter Iteration 29/32 [2022-09-21 14:26:05,575 INFO L642 ngineConcurrentUtils]: Filter Iteration 30/32 [2022-09-21 14:26:05,579 INFO L642 ngineConcurrentUtils]: Filter Iteration 31/32 [2022-09-21 14:26:05,583 INFO L642 ngineConcurrentUtils]: Filter Iteration 32/32 [2022-09-21 14:26:05,588 INFO L651 ngineConcurrentUtils]: Number of combinations: 32 [2022-09-21 14:26:05,590 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:05,596 INFO L396 ointEngineConcurrent]: Reduced size from 32 to 1 [2022-09-21 14:26:05,596 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,599 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 3 [2022-09-21 14:26:05,599 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:05,600 INFO L396 ointEngineConcurrent]: Reduced size from 9 to 1 [2022-09-21 14:26:05,600 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,611 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:05,612 INFO L396 ointEngineConcurrent]: Reduced size from 32 to 1 [2022-09-21 14:26:05,612 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,614 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 4 [2022-09-21 14:26:05,615 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:05,615 INFO L396 ointEngineConcurrent]: Reduced size from 9 to 1 [2022-09-21 14:26:05,615 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,624 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:05,625 INFO L396 ointEngineConcurrent]: Reduced size from 32 to 1 [2022-09-21 14:26:05,625 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:05,628 INFO L320 AbstractInterpreter]: Some error location(s) were reachable [2022-09-21 14:26:05,640 INFO L329 AbstractInterpreter]: No benchmarks available [2022-09-21 14:26:05,640 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2022-09-21 14:26:05,643 INFO L158 Benchmark]: Toolchain (without parser) took 761.58ms. Allocated memory is still 200.3MB. Free memory was 159.1MB in the beginning and 161.3MB in the end (delta: -2.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:05,644 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.17ms. Allocated memory is still 200.3MB. Free memory is still 160.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:05,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.84ms. Allocated memory is still 200.3MB. Free memory was 159.1MB in the beginning and 157.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-21 14:26:05,645 INFO L158 Benchmark]: Boogie Preprocessor took 12.18ms. Allocated memory is still 200.3MB. Free memory was 157.5MB in the beginning and 156.6MB in the end (delta: 888.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:26:05,647 INFO L158 Benchmark]: RCFGBuilder took 195.11ms. Allocated memory is still 200.3MB. Free memory was 156.5MB in the beginning and 148.2MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-21 14:26:05,647 INFO L158 Benchmark]: Abstract Interpretation took 528.98ms. Allocated memory is still 200.3MB. Free memory was 148.0MB in the beginning and 161.3MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:05,650 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 0.17ms. Allocated memory is still 200.3MB. Free memory is still 160.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.84ms. Allocated memory is still 200.3MB. Free memory was 159.1MB in the beginning and 157.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.18ms. Allocated memory is still 200.3MB. Free memory was 157.5MB in the beginning and 156.6MB in the end (delta: 888.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 195.11ms. Allocated memory is still 200.3MB. Free memory was 156.5MB in the beginning and 148.2MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Abstract Interpretation took 528.98ms. Allocated memory is still 200.3MB. Free memory was 148.0MB in the beginning and 161.3MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 30]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L21] 0 i := -2; [L22] 0 x := 0; [L23] 0 y := x - i; [L24] FORK 0 fork 1 thread1(); [L25] COND TRUE 0 i < 0 [L26] 0 i := i + 1; [L27] 0 y := x + y; [L28] 0 x := y; [L25] COND TRUE 0 i < 0 [L26] 0 i := i + 1; [L27] 0 y := x + y; [L28] 0 x := y; [L25] COND FALSE 0 !(i < 0) [L30] 0 assert y >= 2; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-09-21 14:26:05,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-21 14:26:05,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...