/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/bench/exp2x3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.absint-concur-c9b613c-m [2022-09-21 14:27:00,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-21 14:27:00,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-21 14:27:00,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-21 14:27:00,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-21 14:27:00,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-21 14:27:00,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-21 14:27:00,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-21 14:27:00,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-21 14:27:00,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-21 14:27:00,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-21 14:27:00,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-21 14:27:00,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-21 14:27:00,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-21 14:27:00,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-21 14:27:00,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-21 14:27:00,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-21 14:27:00,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-21 14:27:00,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-21 14:27:00,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-21 14:27:00,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-21 14:27:00,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-21 14:27:00,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-21 14:27:00,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-21 14:27:00,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-21 14:27:00,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-21 14:27:00,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-21 14:27:00,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-21 14:27:00,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-21 14:27:00,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-21 14:27:00,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-21 14:27:00,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-21 14:27:00,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-21 14:27:00,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-21 14:27:00,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-21 14:27:00,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-21 14:27:00,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-21 14:27:00,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-21 14:27:00,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-21 14:27:00,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-21 14:27:00,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-21 14:27:00,110 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 14:27:00,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-21 14:27:00,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-21 14:27:00,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-21 14:27:00,135 INFO L138 SettingsManager]: * Log level for plugins=info [2022-09-21 14:27:00,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-21 14:27:00,136 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-21 14:27:00,136 INFO L138 SettingsManager]: * User list type=DISABLED [2022-09-21 14:27:00,136 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2022-09-21 14:27:00,136 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2022-09-21 14:27:00,136 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-09-21 14:27:00,137 INFO L138 SettingsManager]: * Computation of Interferences for Sequential Abstract Interpretation of each procedure=FLOW_SENSITIVE_FILTERED [2022-09-21 14:27:00,137 INFO L138 SettingsManager]: * Abstract domain=OctagonDomain [2022-09-21 14:27:00,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-21 14:27:00,137 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-21 14:27:00,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-21 14:27:00,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-21 14:27:00,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-21 14:27:00,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-21 14:27:00,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-21 14:27:00,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-21 14:27:00,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-21 14:27:00,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-21 14:27:00,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-21 14:27:00,138 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2022-09-21 14:27:00,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-21 14:27:00,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:27:00,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-21 14:27:00,139 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-09-21 14:27:00,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-21 14:27:00,139 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2022-09-21 14:27:00,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-21 14:27:00,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-21 14:27:00,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-21 14:27:00,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-21 14:27:00,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-21 14:27:00,292 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-21 14:27:00,303 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-21 14:27:00,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl [2022-09-21 14:27:00,304 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl' [2022-09-21 14:27:00,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-21 14:27:00,319 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-21 14:27:00,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-21 14:27:00,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-21 14:27:00,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-21 14:27:00,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:27:00" (1/1) ... [2022-09-21 14:27:00,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:27:00" (1/1) ... [2022-09-21 14:27:00,335 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-21 14:27:00,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-21 14:27:00,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-21 14:27:00,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-21 14:27:00,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-21 14:27:00,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:27:00" (1/1) ... [2022-09-21 14:27:00,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:27:00" (1/1) ... [2022-09-21 14:27:00,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:27:00" (1/1) ... [2022-09-21 14:27:00,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:27:00" (1/1) ... [2022-09-21 14:27:00,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:27:00" (1/1) ... [2022-09-21 14:27:00,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:27:00" (1/1) ... [2022-09-21 14:27:00,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:27:00" (1/1) ... [2022-09-21 14:27:00,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-21 14:27:00,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-21 14:27:00,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-21 14:27:00,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-21 14:27:00,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:27:00" (1/1) ... [2022-09-21 14:27:00,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:27:00,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:27:00,396 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 14:27:00,459 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 14:27:00,471 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-09-21 14:27:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-21 14:27:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-21 14:27:00,472 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-09-21 14:27:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-21 14:27:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-21 14:27:00,472 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-21 14:27:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-21 14:27:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-21 14:27:00,472 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-09-21 14:27:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-21 14:27:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-21 14:27:00,473 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-09-21 14:27:00,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-09-21 14:27:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-09-21 14:27:00,474 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 14:27:00,509 INFO L234 CfgBuilder]: Building ICFG [2022-09-21 14:27:00,510 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-21 14:27:00,616 INFO L275 CfgBuilder]: Performing block encoding [2022-09-21 14:27:00,621 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-21 14:27:00,621 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-21 14:27:00,622 INFO L202 PluginConnector]: Adding new model exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:27:00 BoogieIcfgContainer [2022-09-21 14:27:00,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-21 14:27:00,623 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2022-09-21 14:27:00,623 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2022-09-21 14:27:00,623 INFO L275 PluginConnector]: Abstract Interpretation initialized [2022-09-21 14:27:00,627 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:27:00" (1/1) ... [2022-09-21 14:27:00,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-21 14:27:00,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:27:00,725 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 14:27:00,726 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 14:27:00,789 INFO L129 ointEngineConcurrent]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:27:00,790 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 1 [2022-09-21 14:27:00,791 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:27:00,830 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:27:00,849 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:27:00,861 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:27:00,866 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:27:00,873 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 2 [2022-09-21 14:27:00,873 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for ULTIMATE.start with variables: [x1, n, x4, x2, x3] [2022-09-21 14:27:00,874 INFO L631 ngineConcurrentUtils]: Start checking 16 possible combinations. [2022-09-21 14:27:00,874 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/16 [2022-09-21 14:27:01,197 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/16 [2022-09-21 14:27:01,569 INFO L642 ngineConcurrentUtils]: Filter Iteration 3/16 [2022-09-21 14:27:01,944 INFO L642 ngineConcurrentUtils]: Filter Iteration 4/16 [2022-09-21 14:27:02,376 INFO L642 ngineConcurrentUtils]: Filter Iteration 5/16 [2022-09-21 14:27:02,740 INFO L642 ngineConcurrentUtils]: Filter Iteration 6/16 [2022-09-21 14:27:03,203 INFO L642 ngineConcurrentUtils]: Filter Iteration 7/16 [2022-09-21 14:27:03,627 INFO L642 ngineConcurrentUtils]: Filter Iteration 8/16 [2022-09-21 14:27:04,061 INFO L642 ngineConcurrentUtils]: Filter Iteration 9/16 [2022-09-21 14:27:04,478 INFO L642 ngineConcurrentUtils]: Filter Iteration 10/16 [2022-09-21 14:27:04,872 INFO L642 ngineConcurrentUtils]: Filter Iteration 11/16 [2022-09-21 14:27:05,269 INFO L642 ngineConcurrentUtils]: Filter Iteration 12/16 [2022-09-21 14:27:05,707 INFO L642 ngineConcurrentUtils]: Filter Iteration 13/16 [2022-09-21 14:27:06,107 INFO L642 ngineConcurrentUtils]: Filter Iteration 14/16 [2022-09-21 14:27:06,541 INFO L642 ngineConcurrentUtils]: Filter Iteration 15/16 [2022-09-21 14:27:06,971 INFO L642 ngineConcurrentUtils]: Filter Iteration 16/16 [2022-09-21 14:27:07,363 INFO L651 ngineConcurrentUtils]: Number of combinations: 16 [2022-09-21 14:27:07,370 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:27:07,370 INFO L396 ointEngineConcurrent]: Reduced size from 16 to 1 [2022-09-21 14:27:07,370 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:27:07,377 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread1 with variables: [x1, n, x4, x2, x3] [2022-09-21 14:27:07,377 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:27:07,378 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:27:07,378 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:27:07,378 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:27:07,378 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:27:07,378 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:27:07,378 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread4 with variables: [x1, n, x4, x2, x3] [2022-09-21 14:27:07,378 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:27:07,378 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:27:07,378 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:27:07,378 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:27:07,378 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:27:07,378 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:27:07,378 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread3 with variables: [x1, n, x4, x2, x3] [2022-09-21 14:27:07,378 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:27:07,379 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:27:07,379 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:27:07,379 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:27:07,379 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:27:07,379 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:27:07,379 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread2 with variables: [x1, n, x4, x2, x3] [2022-09-21 14:27:07,379 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:27:07,379 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:27:07,379 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:27:07,379 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:27:07,379 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:27:07,379 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:27:07,384 INFO L320 AbstractInterpreter]: Some error location(s) were reachable [2022-09-21 14:27:07,391 INFO L329 AbstractInterpreter]: No benchmarks available [2022-09-21 14:27:07,392 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2022-09-21 14:27:07,393 INFO L158 Benchmark]: Toolchain (without parser) took 7073.00ms. Allocated memory is still 195.0MB. Free memory was 154.4MB in the beginning and 162.9MB in the end (delta: -8.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:27:07,393 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 155.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:27:07,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.52ms. Allocated memory is still 195.0MB. Free memory was 154.4MB in the beginning and 152.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-21 14:27:07,394 INFO L158 Benchmark]: Boogie Preprocessor took 9.84ms. Allocated memory is still 195.0MB. Free memory was 152.8MB in the beginning and 151.9MB in the end (delta: 866.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:27:07,395 INFO L158 Benchmark]: RCFGBuilder took 275.31ms. Allocated memory is still 195.0MB. Free memory was 151.8MB in the beginning and 142.6MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-21 14:27:07,395 INFO L158 Benchmark]: Abstract Interpretation took 6768.47ms. Allocated memory is still 195.0MB. Free memory was 142.5MB in the beginning and 162.9MB in the end (delta: -20.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:27:07,397 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 0.09ms. Allocated memory is still 195.0MB. Free memory is still 155.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 16.52ms. Allocated memory is still 195.0MB. Free memory was 154.4MB in the beginning and 152.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.84ms. Allocated memory is still 195.0MB. Free memory was 152.8MB in the beginning and 151.9MB in the end (delta: 866.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 275.31ms. Allocated memory is still 195.0MB. Free memory was 151.8MB in the beginning and 142.6MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Abstract Interpretation took 6768.47ms. Allocated memory is still 195.0MB. Free memory was 142.5MB in the beginning and 162.9MB in the end (delta: -20.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 60]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L50] 0 assume x1 == x2 && x1 > 0 && x3 == x4 && x3 > 0; [L51] FORK 0 fork 1 thread1(); [L52] FORK 0 fork 2, 2 thread2(); [L53] FORK 0 fork 3, 3, 3 thread3(); [L54] FORK 0 fork 4, 4, 4, 4 thread4(); [L55] JOIN 0 join 1; [L56] JOIN 0 join 2, 2; [L57] JOIN 0 join 3, 3, 3; [L58] JOIN 0 join 4, 4, 4, 4; [L59] 0 assume !(x1 == x2 && x3 == x4); [L60] 0 assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-09-21 14:27:07,474 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 14:27:07,639 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...