/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/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.absint-concur-c9b613c-m [2022-09-21 14:30:38,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-21 14:30:38,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-21 14:30:38,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-21 14:30:38,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-21 14:30:38,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-21 14:30:38,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-21 14:30:38,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-21 14:30:38,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-21 14:30:38,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-21 14:30:38,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-21 14:30:38,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-21 14:30:38,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-21 14:30:38,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-21 14:30:38,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-21 14:30:38,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-21 14:30:38,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-21 14:30:38,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-21 14:30:38,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-21 14:30:38,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-21 14:30:38,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-21 14:30:38,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-21 14:30:38,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-21 14:30:38,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-21 14:30:38,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-21 14:30:38,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-21 14:30:38,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-21 14:30:38,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-21 14:30:38,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-21 14:30:38,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-21 14:30:38,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-21 14:30:38,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-21 14:30:38,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-21 14:30:38,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-21 14:30:38,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-21 14:30:38,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-21 14:30:38,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-21 14:30:38,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-21 14:30:38,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-21 14:30:38,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-21 14:30:38,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-21 14:30:38,753 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 14:30:38,772 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-21 14:30:38,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-21 14:30:38,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-21 14:30:38,772 INFO L138 SettingsManager]: * Log level for plugins=info [2022-09-21 14:30:38,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-21 14:30:38,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-21 14:30:38,773 INFO L138 SettingsManager]: * User list type=DISABLED [2022-09-21 14:30:38,773 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2022-09-21 14:30:38,774 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2022-09-21 14:30:38,774 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-09-21 14:30:38,774 INFO L138 SettingsManager]: * Computation of Interferences for Sequential Abstract Interpretation of each procedure=FLOW_SENSITIVE_FILTERED [2022-09-21 14:30:38,774 INFO L138 SettingsManager]: * Abstract domain=OctagonDomain [2022-09-21 14:30:38,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-21 14:30:38,775 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-21 14:30:38,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-21 14:30:38,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-21 14:30:38,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-21 14:30:38,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-21 14:30:38,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-21 14:30:38,776 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-21 14:30:38,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-21 14:30:38,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-21 14:30:38,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-21 14:30:38,776 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2022-09-21 14:30:38,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-21 14:30:38,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:30:38,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-21 14:30:38,777 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-09-21 14:30:38,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-21 14:30:38,777 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2022-09-21 14:30:38,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-21 14:30:38,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-21 14:30:38,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-21 14:30:39,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-21 14:30:39,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-21 14:30:39,012 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-21 14:30:39,013 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-21 14:30:39,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl [2022-09-21 14:30:39,014 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl' [2022-09-21 14:30:39,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-21 14:30:39,041 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-21 14:30:39,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-21 14:30:39,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-21 14:30:39,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-21 14:30:39,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:30:39" (1/1) ... [2022-09-21 14:30:39,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:30:39" (1/1) ... [2022-09-21 14:30:39,064 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-21 14:30:39,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-21 14:30:39,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-21 14:30:39,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-21 14:30:39,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-21 14:30:39,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:30:39" (1/1) ... [2022-09-21 14:30:39,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:30:39" (1/1) ... [2022-09-21 14:30:39,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:30:39" (1/1) ... [2022-09-21 14:30:39,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:30:39" (1/1) ... [2022-09-21 14:30:39,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:30:39" (1/1) ... [2022-09-21 14:30:39,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:30:39" (1/1) ... [2022-09-21 14:30:39,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:30:39" (1/1) ... [2022-09-21 14:30:39,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-21 14:30:39,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-21 14:30:39,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-21 14:30:39,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-21 14:30:39,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:30:39" (1/1) ... [2022-09-21 14:30:39,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:30:39,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:30:39,116 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 14:30:39,142 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 14:30:39,153 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-09-21 14:30:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-21 14:30:39,153 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-21 14:30:39,154 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-09-21 14:30:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-21 14:30:39,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-21 14:30:39,154 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-21 14:30:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-21 14:30:39,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-21 14:30:39,154 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-09-21 14:30:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-21 14:30:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-21 14:30:39,155 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 14:30:39,197 INFO L234 CfgBuilder]: Building ICFG [2022-09-21 14:30:39,199 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-21 14:30:39,296 INFO L275 CfgBuilder]: Performing block encoding [2022-09-21 14:30:39,307 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-21 14:30:39,308 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-21 14:30:39,309 INFO L202 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:30:39 BoogieIcfgContainer [2022-09-21 14:30:39,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-21 14:30:39,311 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2022-09-21 14:30:39,311 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2022-09-21 14:30:39,311 INFO L275 PluginConnector]: Abstract Interpretation initialized [2022-09-21 14:30:39,319 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:30:39" (1/1) ... [2022-09-21 14:30:39,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-21 14:30:39,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:30:39,402 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 14:30:39,403 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 14:30:39,468 INFO L129 ointEngineConcurrent]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:39,469 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 1 [2022-09-21 14:30:39,470 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:39,492 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:39,669 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:39,716 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:39,717 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 2 [2022-09-21 14:30:39,717 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for ULTIMATE.start with variables: [A, ok, queue, x2, end, x1, start, i1, i2, B] [2022-09-21 14:30:39,718 INFO L631 ngineConcurrentUtils]: Start checking 2 possible combinations. [2022-09-21 14:30:39,718 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/2 [2022-09-21 14:30:40,438 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/2 [2022-09-21 14:30:40,881 INFO L651 ngineConcurrentUtils]: Number of combinations: 2 [2022-09-21 14:30:40,882 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:30:40,882 INFO L396 ointEngineConcurrent]: Reduced size from 2 to 2 [2022-09-21 14:30:40,882 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:40,887 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:40,891 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread1 with variables: [A, ok, queue, x2, end, x1, start, i1, i2, B] [2022-09-21 14:30:40,891 INFO L631 ngineConcurrentUtils]: Start checking 2 possible combinations. [2022-09-21 14:30:40,892 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/2 [2022-09-21 14:30:41,357 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/2 [2022-09-21 14:30:41,794 INFO L651 ngineConcurrentUtils]: Number of combinations: 2 [2022-09-21 14:30:41,794 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:30:41,794 INFO L396 ointEngineConcurrent]: Reduced size from 2 to 1 [2022-09-21 14:30:41,795 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:41,822 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread2 with variables: [A, ok, queue, x2, end, x1, start, i1, i2, B] [2022-09-21 14:30:41,823 INFO L631 ngineConcurrentUtils]: Start checking 2 possible combinations. [2022-09-21 14:30:41,823 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/2 [2022-09-21 14:30:42,296 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/2 [2022-09-21 14:30:42,763 INFO L651 ngineConcurrentUtils]: Number of combinations: 2 [2022-09-21 14:30:42,763 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:30:42,763 INFO L396 ointEngineConcurrent]: Reduced size from 2 to 1 [2022-09-21 14:30:42,763 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:42,782 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread3 with variables: [A, ok, queue, x2, end, x1, start, i1, i2, B] [2022-09-21 14:30:42,782 INFO L631 ngineConcurrentUtils]: Start checking 3 possible combinations. [2022-09-21 14:30:42,782 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/3 [2022-09-21 14:30:43,284 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/3 [2022-09-21 14:30:43,754 INFO L642 ngineConcurrentUtils]: Filter Iteration 3/3 [2022-09-21 14:30:44,174 INFO L651 ngineConcurrentUtils]: Number of combinations: 3 [2022-09-21 14:30:44,174 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:30:44,174 INFO L396 ointEngineConcurrent]: Reduced size from 3 to 2 [2022-09-21 14:30:44,175 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:44,184 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:44,198 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 3 [2022-09-21 14:30:44,198 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:30:44,198 INFO L396 ointEngineConcurrent]: Reduced size from 2 to 1 [2022-09-21 14:30:44,198 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:44,201 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:30:44,202 INFO L396 ointEngineConcurrent]: Reduced size from 2 to 1 [2022-09-21 14:30:44,202 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:44,233 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:30:44,234 INFO L396 ointEngineConcurrent]: Reduced size from 2 to 1 [2022-09-21 14:30:44,234 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:44,259 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:30:44,259 INFO L396 ointEngineConcurrent]: Reduced size from 3 to 2 [2022-09-21 14:30:44,259 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:44,268 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:30:44,276 INFO L320 AbstractInterpreter]: Some error location(s) were reachable [2022-09-21 14:30:44,288 INFO L329 AbstractInterpreter]: No benchmarks available [2022-09-21 14:30:44,289 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2022-09-21 14:30:44,291 INFO L158 Benchmark]: Toolchain (without parser) took 5248.57ms. Allocated memory was 173.0MB in the beginning and 256.9MB in the end (delta: 83.9MB). Free memory was 124.3MB in the beginning and 200.0MB in the end (delta: -75.7MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. [2022-09-21 14:30:44,293 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 173.0MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:30:44,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.42ms. Allocated memory is still 173.0MB. Free memory was 124.3MB in the beginning and 122.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:30:44,294 INFO L158 Benchmark]: Boogie Preprocessor took 16.53ms. Allocated memory is still 173.0MB. Free memory was 122.8MB in the beginning and 121.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:30:44,296 INFO L158 Benchmark]: RCFGBuilder took 225.06ms. Allocated memory is still 173.0MB. Free memory was 121.8MB in the beginning and 112.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-09-21 14:30:44,296 INFO L158 Benchmark]: Abstract Interpretation took 4978.21ms. Allocated memory was 173.0MB in the beginning and 256.9MB in the end (delta: 83.9MB). Free memory was 111.9MB in the beginning and 200.0MB in the end (delta: -88.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:30:44,299 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 0.13ms. Allocated memory is still 173.0MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.42ms. Allocated memory is still 173.0MB. Free memory was 124.3MB in the beginning and 122.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.53ms. Allocated memory is still 173.0MB. Free memory was 122.8MB in the beginning and 121.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 225.06ms. Allocated memory is still 173.0MB. Free memory was 121.8MB in the beginning and 112.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Abstract Interpretation took 4978.21ms. Allocated memory was 173.0MB in the beginning and 256.9MB in the end (delta: 83.9MB). Free memory was 111.9MB in the beginning and 200.0MB in the end (delta: -88.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 68]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L60] 0 assume start == end; [L61] FORK 0 fork 1 thread1(); [L62] FORK 0 fork 2, 2 thread2(); [L63] FORK 0 fork 3, 3, 3 thread3(); [L64] JOIN 0 join 1; [L65] JOIN 0 join 2, 2; [L66] JOIN 0 join 3, 3, 3; [L67] 0 assume !ok; [L68] 0 assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-09-21 14:30:44,339 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 14:30:44,528 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...