/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/commit-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.absint-concur-c9b613c-m [2022-09-21 14:31:03,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-21 14:31:03,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-21 14:31:03,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-21 14:31:03,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-21 14:31:03,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-21 14:31:03,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-21 14:31:03,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-21 14:31:03,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-21 14:31:03,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-21 14:31:03,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-21 14:31:03,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-21 14:31:03,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-21 14:31:03,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-21 14:31:03,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-21 14:31:03,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-21 14:31:03,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-21 14:31:03,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-21 14:31:03,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-21 14:31:03,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-21 14:31:03,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-21 14:31:03,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-21 14:31:03,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-21 14:31:03,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-21 14:31:03,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-21 14:31:03,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-21 14:31:03,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-21 14:31:03,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-21 14:31:03,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-21 14:31:03,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-21 14:31:03,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-21 14:31:03,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-21 14:31:03,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-21 14:31:03,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-21 14:31:03,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-21 14:31:03,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-21 14:31:03,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-21 14:31:03,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-21 14:31:03,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-21 14:31:03,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-21 14:31:03,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-21 14:31:03,705 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 14:31:03,736 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-21 14:31:03,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-21 14:31:03,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-21 14:31:03,736 INFO L138 SettingsManager]: * Log level for plugins=info [2022-09-21 14:31:03,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-21 14:31:03,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-21 14:31:03,737 INFO L138 SettingsManager]: * User list type=DISABLED [2022-09-21 14:31:03,737 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2022-09-21 14:31:03,737 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2022-09-21 14:31:03,737 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-09-21 14:31:03,737 INFO L138 SettingsManager]: * Computation of Interferences for Sequential Abstract Interpretation of each procedure=FLOW_SENSITIVE_FILTERED [2022-09-21 14:31:03,737 INFO L138 SettingsManager]: * Abstract domain=OctagonDomain [2022-09-21 14:31:03,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-21 14:31:03,738 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-21 14:31:03,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-21 14:31:03,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-21 14:31:03,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-21 14:31:03,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-21 14:31:03,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-21 14:31:03,738 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-21 14:31:03,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-21 14:31:03,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-21 14:31:03,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-21 14:31:03,739 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2022-09-21 14:31:03,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-21 14:31:03,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:31:03,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-21 14:31:03,739 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-09-21 14:31:03,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-21 14:31:03,739 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2022-09-21 14:31:03,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-21 14:31:03,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-21 14:31:03,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-21 14:31:03,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-21 14:31:03,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-21 14:31:03,969 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-21 14:31:03,973 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-21 14:31:03,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/commit-2.wvr.bpl [2022-09-21 14:31:03,975 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/commit-2.wvr.bpl' [2022-09-21 14:31:04,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-21 14:31:04,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-21 14:31:04,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-21 14:31:04,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-21 14:31:04,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-21 14:31:04,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:04" (1/1) ... [2022-09-21 14:31:04,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:04" (1/1) ... [2022-09-21 14:31:04,039 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-21 14:31:04,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-21 14:31:04,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-21 14:31:04,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-21 14:31:04,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-21 14:31:04,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:04" (1/1) ... [2022-09-21 14:31:04,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:04" (1/1) ... [2022-09-21 14:31:04,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:04" (1/1) ... [2022-09-21 14:31:04,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:04" (1/1) ... [2022-09-21 14:31:04,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:04" (1/1) ... [2022-09-21 14:31:04,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:04" (1/1) ... [2022-09-21 14:31:04,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:04" (1/1) ... [2022-09-21 14:31:04,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-21 14:31:04,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-21 14:31:04,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-21 14:31:04,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-21 14:31:04,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:04" (1/1) ... [2022-09-21 14:31:04,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:31:04,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:31:04,087 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 14:31:04,105 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 14:31:04,124 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-09-21 14:31:04,124 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-21 14:31:04,124 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-21 14:31:04,124 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-09-21 14:31:04,124 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-21 14:31:04,124 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-21 14:31:04,125 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-21 14:31:04,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-21 14:31:04,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-21 14:31:04,125 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-09-21 14:31:04,125 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-21 14:31:04,125 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-21 14:31:04,125 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-09-21 14:31:04,125 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-09-21 14:31:04,125 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-09-21 14:31:04,126 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 14:31:04,173 INFO L234 CfgBuilder]: Building ICFG [2022-09-21 14:31:04,175 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-21 14:31:04,291 INFO L275 CfgBuilder]: Performing block encoding [2022-09-21 14:31:04,338 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-21 14:31:04,339 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-21 14:31:04,339 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2022-09-21 14:31:04,340 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2022-09-21 14:31:04,340 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2022-09-21 14:31:04,340 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2022-09-21 14:31:04,342 INFO L202 PluginConnector]: Adding new model commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:31:04 BoogieIcfgContainer [2022-09-21 14:31:04,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-21 14:31:04,343 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2022-09-21 14:31:04,343 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2022-09-21 14:31:04,343 INFO L275 PluginConnector]: Abstract Interpretation initialized [2022-09-21 14:31:04,344 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "commit-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:31:04" (1/1) ... [2022-09-21 14:31:04,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-21 14:31:04,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:31:04,388 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 14:31:04,389 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 14:31:04,449 INFO L129 ointEngineConcurrent]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:04,451 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 1 [2022-09-21 14:31:04,451 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:04,519 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:04,547 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:04,560 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:04,566 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:04,570 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 2 [2022-09-21 14:31:04,570 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for ULTIMATE.start with variables: [client_front, ok, node_1, node_2, manager, manager_back, node_1_back, node_2_back, client_back, manager_front, safe, node_1_front, node_2_front, client, update] [2022-09-21 14:31:04,574 INFO L631 ngineConcurrentUtils]: Start checking 224 possible combinations. [2022-09-21 14:31:04,574 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/224 [2022-09-21 14:31:04,589 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/224 [2022-09-21 14:31:04,602 INFO L642 ngineConcurrentUtils]: Filter Iteration 3/224 [2022-09-21 14:31:04,613 INFO L642 ngineConcurrentUtils]: Filter Iteration 4/224 [2022-09-21 14:31:04,626 INFO L642 ngineConcurrentUtils]: Filter Iteration 5/224 [2022-09-21 14:31:04,643 INFO L642 ngineConcurrentUtils]: Filter Iteration 6/224 [2022-09-21 14:31:04,657 INFO L642 ngineConcurrentUtils]: Filter Iteration 7/224 [2022-09-21 14:31:04,669 INFO L642 ngineConcurrentUtils]: Filter Iteration 8/224 [2022-09-21 14:31:04,682 INFO L642 ngineConcurrentUtils]: Filter Iteration 9/224 [2022-09-21 14:31:04,693 INFO L642 ngineConcurrentUtils]: Filter Iteration 10/224 [2022-09-21 14:31:04,704 INFO L642 ngineConcurrentUtils]: Filter Iteration 11/224 [2022-09-21 14:31:04,716 INFO L642 ngineConcurrentUtils]: Filter Iteration 12/224 [2022-09-21 14:31:04,727 INFO L642 ngineConcurrentUtils]: Filter Iteration 13/224 [2022-09-21 14:31:04,742 INFO L642 ngineConcurrentUtils]: Filter Iteration 14/224 [2022-09-21 14:31:04,756 INFO L642 ngineConcurrentUtils]: Filter Iteration 15/224 [2022-09-21 14:31:04,768 INFO L642 ngineConcurrentUtils]: Filter Iteration 16/224 [2022-09-21 14:31:04,779 INFO L642 ngineConcurrentUtils]: Filter Iteration 17/224 [2022-09-21 14:31:04,790 INFO L642 ngineConcurrentUtils]: Filter Iteration 18/224 [2022-09-21 14:31:04,802 INFO L642 ngineConcurrentUtils]: Filter Iteration 19/224 [2022-09-21 14:31:04,818 INFO L642 ngineConcurrentUtils]: Filter Iteration 20/224 [2022-09-21 14:31:04,832 INFO L642 ngineConcurrentUtils]: Filter Iteration 21/224 [2022-09-21 14:31:04,844 INFO L642 ngineConcurrentUtils]: Filter Iteration 22/224 [2022-09-21 14:31:04,857 INFO L642 ngineConcurrentUtils]: Filter Iteration 23/224 [2022-09-21 14:31:04,868 INFO L642 ngineConcurrentUtils]: Filter Iteration 24/224 [2022-09-21 14:31:04,880 INFO L642 ngineConcurrentUtils]: Filter Iteration 25/224 [2022-09-21 14:31:04,892 INFO L642 ngineConcurrentUtils]: Filter Iteration 26/224 [2022-09-21 14:31:04,905 INFO L642 ngineConcurrentUtils]: Filter Iteration 27/224 [2022-09-21 14:31:04,916 INFO L642 ngineConcurrentUtils]: Filter Iteration 28/224 [2022-09-21 14:31:04,931 INFO L642 ngineConcurrentUtils]: Filter Iteration 29/224 [2022-09-21 14:31:04,943 INFO L642 ngineConcurrentUtils]: Filter Iteration 30/224 [2022-09-21 14:31:04,955 INFO L642 ngineConcurrentUtils]: Filter Iteration 31/224 [2022-09-21 14:31:04,974 INFO L642 ngineConcurrentUtils]: Filter Iteration 32/224 [2022-09-21 14:31:04,990 INFO L642 ngineConcurrentUtils]: Filter Iteration 33/224 [2022-09-21 14:31:05,003 INFO L642 ngineConcurrentUtils]: Filter Iteration 34/224 [2022-09-21 14:31:05,015 INFO L642 ngineConcurrentUtils]: Filter Iteration 35/224 [2022-09-21 14:31:05,026 INFO L642 ngineConcurrentUtils]: Filter Iteration 36/224 [2022-09-21 14:31:05,038 INFO L642 ngineConcurrentUtils]: Filter Iteration 37/224 [2022-09-21 14:31:05,050 INFO L642 ngineConcurrentUtils]: Filter Iteration 38/224 [2022-09-21 14:31:05,065 INFO L642 ngineConcurrentUtils]: Filter Iteration 39/224 [2022-09-21 14:31:05,083 INFO L642 ngineConcurrentUtils]: Filter Iteration 40/224 [2022-09-21 14:31:05,105 INFO L642 ngineConcurrentUtils]: Filter Iteration 41/224 [2022-09-21 14:31:05,121 INFO L642 ngineConcurrentUtils]: Filter Iteration 42/224 [2022-09-21 14:31:05,135 INFO L642 ngineConcurrentUtils]: Filter Iteration 43/224 [2022-09-21 14:31:05,151 INFO L642 ngineConcurrentUtils]: Filter Iteration 44/224 [2022-09-21 14:31:05,163 INFO L642 ngineConcurrentUtils]: Filter Iteration 45/224 [2022-09-21 14:31:05,176 INFO L642 ngineConcurrentUtils]: Filter Iteration 46/224 [2022-09-21 14:31:05,188 INFO L642 ngineConcurrentUtils]: Filter Iteration 47/224 [2022-09-21 14:31:05,201 INFO L642 ngineConcurrentUtils]: Filter Iteration 48/224 [2022-09-21 14:31:05,213 INFO L642 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maxParallelStates=2) [2022-09-21 14:31:07,580 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:07,593 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:07,603 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:07,611 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:07,618 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:07,625 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:07,631 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:07,636 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread1 with variables: [client_front, ok, node_1, node_2, manager, manager_back, node_1_back, node_2_back, client_back, manager_front, safe, node_1_front, node_2_front, client, update] [2022-09-21 14:31:07,637 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:31:07,637 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:31:07,637 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:31:07,637 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:31:07,637 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:31:07,638 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:31:07,638 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread4 with variables: [client_front, ok, node_1, node_2, manager, manager_back, node_1_back, node_2_back, client_back, manager_front, safe, node_1_front, node_2_front, client, update] [2022-09-21 14:31:07,638 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:31:07,638 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:31:07,638 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:31:07,638 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:31:07,638 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:31:07,638 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:31:07,638 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread3 with variables: [client_front, ok, node_1, node_2, manager, manager_back, node_1_back, node_2_back, client_back, manager_front, safe, node_1_front, node_2_front, client, update] [2022-09-21 14:31:07,638 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:31:07,639 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:31:07,639 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:31:07,639 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:31:07,639 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:31:07,639 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:31:07,639 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread2 with variables: [client_front, ok, node_1, node_2, manager, manager_back, node_1_back, node_2_back, client_back, manager_front, safe, node_1_front, node_2_front, client, update] [2022-09-21 14:31:07,639 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:31:07,639 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:31:07,639 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:31:07,639 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:31:07,640 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:31:07,640 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:31:07,642 INFO L320 AbstractInterpreter]: Some error location(s) were reachable [2022-09-21 14:31:07,651 INFO L329 AbstractInterpreter]: No benchmarks available [2022-09-21 14:31:07,651 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2022-09-21 14:31:07,653 INFO L158 Benchmark]: Toolchain (without parser) took 3640.15ms. Allocated memory was 185.6MB in the beginning and 282.1MB in the end (delta: 96.5MB). Free memory was 136.1MB in the beginning and 214.1MB in the end (delta: -78.0MB). Peak memory consumption was 18.2MB. Max. memory is 8.0GB. [2022-09-21 14:31:07,654 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 137.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:31:07,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.75ms. Allocated memory is still 185.6MB. Free memory was 136.1MB in the beginning and 134.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:31:07,655 INFO L158 Benchmark]: Boogie Preprocessor took 16.86ms. Allocated memory is still 185.6MB. Free memory was 134.5MB in the beginning and 133.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:31:07,655 INFO L158 Benchmark]: RCFGBuilder took 282.78ms. Allocated memory was 185.6MB in the beginning and 282.1MB in the end (delta: 96.5MB). Free memory was 133.5MB in the beginning and 252.4MB in the end (delta: -118.9MB). Peak memory consumption was 19.3MB. Max. memory is 8.0GB. [2022-09-21 14:31:07,656 INFO L158 Benchmark]: Abstract Interpretation took 3308.67ms. Allocated memory is still 282.1MB. Free memory was 252.4MB in the beginning and 214.1MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2022-09-21 14:31:07,658 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 0.12ms. Allocated memory is still 185.6MB. Free memory is still 137.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.75ms. Allocated memory is still 185.6MB. Free memory was 136.1MB in the beginning and 134.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.86ms. Allocated memory is still 185.6MB. Free memory was 134.5MB in the beginning and 133.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 282.78ms. Allocated memory was 185.6MB in the beginning and 282.1MB in the end (delta: 96.5MB). Free memory was 133.5MB in the beginning and 252.4MB in the end (delta: -118.9MB). Peak memory consumption was 19.3MB. Max. memory is 8.0GB. * Abstract Interpretation took 3308.67ms. Allocated memory is still 282.1MB. Free memory was 252.4MB in the beginning and 214.1MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 120]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L110] 0 assume safe == true && manager_front == manager_back && client_front == client_back && node_1_front == node_1_back && node_2_front == node_2_back; [L111] FORK 0 fork 1 thread1(); [L112] FORK 0 fork 2, 2 thread2(); [L113] FORK 0 fork 3, 3, 3 thread3(); [L114] FORK 0 fork 4, 4, 4, 4 thread4(); [L115] JOIN 0 join 1; [L116] JOIN 0 join 2, 2; [L117] JOIN 0 join 3, 3, 3; [L118] JOIN 0 join 4, 4, 4, 4; [L119] 0 assume !safe; [L120] 0 assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-09-21 14:31:07,737 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 14:31:07,902 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...