/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/test2_unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.absint-concur-c9b613c-m [2022-09-21 14:26:05,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-21 14:26:05,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-21 14:26:05,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-21 14:26:05,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-21 14:26:05,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-21 14:26:05,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-21 14:26:05,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-21 14:26:05,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-21 14:26:05,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-21 14:26:05,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-21 14:26:05,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-21 14:26:05,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-21 14:26:05,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-21 14:26:05,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-21 14:26:05,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-21 14:26:05,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-21 14:26:05,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-21 14:26:05,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-21 14:26:05,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-21 14:26:05,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-21 14:26:05,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-21 14:26:05,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-21 14:26:05,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-21 14:26:05,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-21 14:26:05,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-21 14:26:05,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-21 14:26:05,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-21 14:26:05,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-21 14:26:05,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-21 14:26:05,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-21 14:26:05,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-21 14:26:05,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-21 14:26:05,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-21 14:26:05,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-21 14:26:05,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-21 14:26:05,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-21 14:26:05,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-21 14:26:05,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-21 14:26:05,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-21 14:26:05,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-21 14:26:05,437 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 14:26:05,470 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-21 14:26:05,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-21 14:26:05,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-21 14:26:05,471 INFO L138 SettingsManager]: * Log level for plugins=info [2022-09-21 14:26:05,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-21 14:26:05,472 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-21 14:26:05,472 INFO L138 SettingsManager]: * User list type=DISABLED [2022-09-21 14:26:05,472 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2022-09-21 14:26:05,472 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2022-09-21 14:26:05,472 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-09-21 14:26:05,473 INFO L138 SettingsManager]: * Computation of Interferences for Sequential Abstract Interpretation of each procedure=FLOW_SENSITIVE_FILTERED [2022-09-21 14:26:05,473 INFO L138 SettingsManager]: * Abstract domain=OctagonDomain [2022-09-21 14:26:05,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-21 14:26:05,474 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-21 14:26:05,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-21 14:26:05,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-21 14:26:05,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-21 14:26:05,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-21 14:26:05,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-21 14:26:05,474 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-21 14:26:05,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-21 14:26:05,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-21 14:26:05,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-21 14:26:05,475 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2022-09-21 14:26:05,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-21 14:26:05,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:26:05,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-21 14:26:05,476 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-09-21 14:26:05,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-21 14:26:05,476 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2022-09-21 14:26:05,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-21 14:26:05,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-21 14:26:05,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-21 14:26:05,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-21 14:26:05,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-21 14:26:05,748 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-21 14:26:05,751 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-21 14:26:05,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/absint/test2_unsafe.bpl [2022-09-21 14:26:05,752 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/absint/test2_unsafe.bpl' [2022-09-21 14:26:05,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-21 14:26:05,770 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-21 14:26:05,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-21 14:26:05,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-21 14:26:05,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-21 14:26:05,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:05" (1/1) ... [2022-09-21 14:26:05,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:05" (1/1) ... [2022-09-21 14:26:05,798 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-21 14:26:05,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-21 14:26:05,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-21 14:26:05,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-21 14:26:05,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-21 14:26:05,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:05" (1/1) ... [2022-09-21 14:26:05,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:05" (1/1) ... [2022-09-21 14:26:05,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:05" (1/1) ... [2022-09-21 14:26:05,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:05" (1/1) ... [2022-09-21 14:26:05,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:05" (1/1) ... [2022-09-21 14:26:05,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:05" (1/1) ... [2022-09-21 14:26:05,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:05" (1/1) ... [2022-09-21 14:26:05,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-21 14:26:05,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-21 14:26:05,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-21 14:26:05,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-21 14:26:05,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:05" (1/1) ... [2022-09-21 14:26:05,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:26:05,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:26:05,841 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 14:26:05,845 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 14:26:05,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-09-21 14:26:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-21 14:26:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-21 14:26:05,873 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-09-21 14:26:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-21 14:26:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-21 14:26:05,873 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-21 14:26:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-21 14:26:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-21 14:26:05,873 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-09-21 14:26:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-21 14:26:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-21 14:26:05,874 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 14:26:05,912 INFO L234 CfgBuilder]: Building ICFG [2022-09-21 14:26:05,913 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-21 14:26:05,999 INFO L275 CfgBuilder]: Performing block encoding [2022-09-21 14:26:06,006 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-21 14:26:06,008 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-21 14:26:06,010 INFO L202 PluginConnector]: Adding new model test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:26:06 BoogieIcfgContainer [2022-09-21 14:26:06,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-21 14:26:06,012 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2022-09-21 14:26:06,013 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2022-09-21 14:26:06,013 INFO L275 PluginConnector]: Abstract Interpretation initialized [2022-09-21 14:26:06,014 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "test2_unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:26:06" (1/1) ... [2022-09-21 14:26:06,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-21 14:26:06,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:26:06,083 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 14:26:06,107 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 14:26:06,130 INFO L129 ointEngineConcurrent]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:06,131 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 1 [2022-09-21 14:26:06,132 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:06,247 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:06,250 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:06,251 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:06,252 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 2 [2022-09-21 14:26:06,252 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for ULTIMATE.start with variables: [x] [2022-09-21 14:26:06,253 INFO L631 ngineConcurrentUtils]: Start checking 20 possible combinations. [2022-09-21 14:26:06,253 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/20 [2022-09-21 14:26:06,260 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/20 [2022-09-21 14:26:06,265 INFO L642 ngineConcurrentUtils]: Filter Iteration 3/20 [2022-09-21 14:26:06,270 INFO L642 ngineConcurrentUtils]: Filter Iteration 4/20 [2022-09-21 14:26:06,276 INFO L642 ngineConcurrentUtils]: Filter Iteration 5/20 [2022-09-21 14:26:06,281 INFO L642 ngineConcurrentUtils]: Filter Iteration 6/20 [2022-09-21 14:26:06,287 INFO L642 ngineConcurrentUtils]: Filter Iteration 7/20 [2022-09-21 14:26:06,292 INFO L642 ngineConcurrentUtils]: Filter Iteration 8/20 [2022-09-21 14:26:06,298 INFO L642 ngineConcurrentUtils]: Filter Iteration 9/20 [2022-09-21 14:26:06,303 INFO L642 ngineConcurrentUtils]: Filter Iteration 10/20 [2022-09-21 14:26:06,308 INFO L642 ngineConcurrentUtils]: Filter Iteration 11/20 [2022-09-21 14:26:06,314 INFO L642 ngineConcurrentUtils]: Filter Iteration 12/20 [2022-09-21 14:26:06,319 INFO L642 ngineConcurrentUtils]: Filter Iteration 13/20 [2022-09-21 14:26:06,325 INFO L642 ngineConcurrentUtils]: Filter Iteration 14/20 [2022-09-21 14:26:06,330 INFO L642 ngineConcurrentUtils]: Filter Iteration 15/20 [2022-09-21 14:26:06,342 INFO L642 ngineConcurrentUtils]: Filter Iteration 16/20 [2022-09-21 14:26:06,356 INFO L642 ngineConcurrentUtils]: Filter Iteration 17/20 [2022-09-21 14:26:06,362 INFO L642 ngineConcurrentUtils]: Filter Iteration 18/20 [2022-09-21 14:26:06,370 INFO L642 ngineConcurrentUtils]: Filter Iteration 19/20 [2022-09-21 14:26:06,376 INFO L642 ngineConcurrentUtils]: Filter Iteration 20/20 [2022-09-21 14:26:06,383 INFO L651 ngineConcurrentUtils]: Number of combinations: 20 [2022-09-21 14:26:06,389 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:06,420 INFO L396 ointEngineConcurrent]: Reduced size from 20 to 6 [2022-09-21 14:26:06,421 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:06,437 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:06,467 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:06,491 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:06,498 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:06,508 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:06,517 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread1 with variables: [x] [2022-09-21 14:26:06,517 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:26:06,517 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:06,517 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:26:06,517 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread2 with variables: [x] [2022-09-21 14:26:06,517 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:26:06,517 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:06,517 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:26:06,517 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread3 with variables: [x] [2022-09-21 14:26:06,518 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:26:06,518 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:06,518 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:26:06,519 INFO L320 AbstractInterpreter]: Some error location(s) were reachable [2022-09-21 14:26:06,536 INFO L329 AbstractInterpreter]: No benchmarks available [2022-09-21 14:26:06,537 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2022-09-21 14:26:06,539 INFO L158 Benchmark]: Toolchain (without parser) took 766.94ms. Allocated memory is still 199.2MB. Free memory was 152.9MB in the beginning and 159.2MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:06,541 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 199.2MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:06,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.34ms. Allocated memory is still 199.2MB. Free memory was 152.9MB in the beginning and 151.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:26:06,543 INFO L158 Benchmark]: Boogie Preprocessor took 13.53ms. Allocated memory is still 199.2MB. Free memory was 151.3MB in the beginning and 150.5MB in the end (delta: 860.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:06,544 INFO L158 Benchmark]: RCFGBuilder took 196.64ms. Allocated memory is still 199.2MB. Free memory was 150.3MB in the beginning and 141.9MB in the end (delta: 8.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-21 14:26:06,545 INFO L158 Benchmark]: Abstract Interpretation took 524.43ms. Allocated memory is still 199.2MB. Free memory was 141.7MB in the beginning and 159.2MB in the end (delta: -17.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:06,548 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 0.15ms. Allocated memory is still 199.2MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.34ms. Allocated memory is still 199.2MB. Free memory was 152.9MB in the beginning and 151.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.53ms. Allocated memory is still 199.2MB. Free memory was 151.3MB in the beginning and 150.5MB in the end (delta: 860.9kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 196.64ms. Allocated memory is still 199.2MB. Free memory was 150.3MB in the beginning and 141.9MB in the end (delta: 8.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Abstract Interpretation took 524.43ms. Allocated memory is still 199.2MB. Free memory was 141.7MB in the beginning and 159.2MB in the end (delta: -17.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 40]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L32] 0 x := 0; [L33] 0 i := x; [L34] FORK 0 fork 1 thread1(); [L35] FORK 0 fork 2 thread2(); [L36] COND FALSE 0 !(x < 10) [L39] FORK 0 fork 3 thread3(); [L40] 0 assert x <= 10; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-09-21 14:26:06,589 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 14:26:06,792 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...