/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/two-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.absint-concur-c9b613c-m [2022-09-21 14:31:50,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-21 14:31:50,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-21 14:31:50,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-21 14:31:50,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-21 14:31:50,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-21 14:31:50,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-21 14:31:50,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-21 14:31:50,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-21 14:31:50,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-21 14:31:50,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-21 14:31:50,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-21 14:31:50,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-21 14:31:50,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-21 14:31:50,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-21 14:31:50,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-21 14:31:50,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-21 14:31:50,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-21 14:31:50,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-21 14:31:50,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-21 14:31:50,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-21 14:31:50,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-21 14:31:50,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-21 14:31:50,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-21 14:31:50,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-21 14:31:50,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-21 14:31:50,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-21 14:31:50,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-21 14:31:50,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-21 14:31:50,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-21 14:31:50,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-21 14:31:50,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-21 14:31:50,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-21 14:31:50,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-21 14:31:50,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-21 14:31:50,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-21 14:31:50,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-21 14:31:50,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-21 14:31:50,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-21 14:31:50,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-21 14:31:50,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-21 14:31:50,529 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 14:31:50,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-21 14:31:50,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-21 14:31:50,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-21 14:31:50,552 INFO L138 SettingsManager]: * Log level for plugins=info [2022-09-21 14:31:50,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-21 14:31:50,552 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-21 14:31:50,552 INFO L138 SettingsManager]: * User list type=DISABLED [2022-09-21 14:31:50,552 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2022-09-21 14:31:50,553 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2022-09-21 14:31:50,553 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-09-21 14:31:50,553 INFO L138 SettingsManager]: * Computation of Interferences for Sequential Abstract Interpretation of each procedure=FLOW_SENSITIVE_FILTERED [2022-09-21 14:31:50,553 INFO L138 SettingsManager]: * Abstract domain=OctagonDomain [2022-09-21 14:31:50,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-21 14:31:50,554 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-21 14:31:50,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-21 14:31:50,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-21 14:31:50,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-21 14:31:50,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-21 14:31:50,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-21 14:31:50,554 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-21 14:31:50,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-21 14:31:50,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-21 14:31:50,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-21 14:31:50,555 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2022-09-21 14:31:50,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-21 14:31:50,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:31:50,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-21 14:31:50,555 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-09-21 14:31:50,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-21 14:31:50,555 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2022-09-21 14:31:50,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-21 14:31:50,555 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-21 14:31:50,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-21 14:31:50,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-21 14:31:50,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-21 14:31:50,746 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-21 14:31:50,750 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-21 14:31:50,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl [2022-09-21 14:31:50,751 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl' [2022-09-21 14:31:50,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-21 14:31:50,774 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-21 14:31:50,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-21 14:31:50,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-21 14:31:50,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-21 14:31:50,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:50" (1/1) ... [2022-09-21 14:31:50,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:50" (1/1) ... [2022-09-21 14:31:50,810 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-21 14:31:50,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-21 14:31:50,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-21 14:31:50,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-21 14:31:50,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-21 14:31:50,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:50" (1/1) ... [2022-09-21 14:31:50,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:50" (1/1) ... [2022-09-21 14:31:50,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:50" (1/1) ... [2022-09-21 14:31:50,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:50" (1/1) ... [2022-09-21 14:31:50,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:50" (1/1) ... [2022-09-21 14:31:50,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:50" (1/1) ... [2022-09-21 14:31:50,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:50" (1/1) ... [2022-09-21 14:31:50,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-21 14:31:50,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-21 14:31:50,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-21 14:31:50,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-21 14:31:50,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:31:50" (1/1) ... [2022-09-21 14:31:50,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:31:50,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:31:50,872 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 14:31:50,890 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 14:31:50,902 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-09-21 14:31:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-21 14:31:50,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-21 14:31:50,902 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-09-21 14:31:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-21 14:31:50,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-21 14:31:50,902 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-21 14:31:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-21 14:31:50,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-21 14:31:50,903 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 14:31:50,944 INFO L234 CfgBuilder]: Building ICFG [2022-09-21 14:31:50,945 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-21 14:31:51,034 INFO L275 CfgBuilder]: Performing block encoding [2022-09-21 14:31:51,065 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-21 14:31:51,065 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-21 14:31:51,079 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:31:51 BoogieIcfgContainer [2022-09-21 14:31:51,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-21 14:31:51,080 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2022-09-21 14:31:51,080 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2022-09-21 14:31:51,080 INFO L275 PluginConnector]: Abstract Interpretation initialized [2022-09-21 14:31:51,081 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:31:51" (1/1) ... [2022-09-21 14:31:51,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-21 14:31:51,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:31:51,142 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 14:31:51,150 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 14:31:51,216 INFO L129 ointEngineConcurrent]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:51,218 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 1 [2022-09-21 14:31:51,218 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:51,242 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:51,281 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:51,315 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 2 [2022-09-21 14:31:51,315 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for ULTIMATE.start with variables: [q1, q2, q1_front, N, j, q2_back, i, q2_front, q1_back] [2022-09-21 14:31:51,318 INFO L631 ngineConcurrentUtils]: Start checking 36 possible combinations. [2022-09-21 14:31:51,318 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/36 [2022-09-21 14:31:51,437 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/36 [2022-09-21 14:31:51,608 INFO L642 ngineConcurrentUtils]: Filter Iteration 3/36 [2022-09-21 14:31:51,745 INFO L642 ngineConcurrentUtils]: Filter Iteration 4/36 [2022-09-21 14:31:51,909 INFO L642 ngineConcurrentUtils]: Filter Iteration 5/36 [2022-09-21 14:31:52,083 INFO L642 ngineConcurrentUtils]: Filter Iteration 6/36 [2022-09-21 14:31:52,265 INFO L642 ngineConcurrentUtils]: Filter Iteration 7/36 [2022-09-21 14:31:52,403 INFO L642 ngineConcurrentUtils]: Filter Iteration 8/36 [2022-09-21 14:31:52,537 INFO L642 ngineConcurrentUtils]: Filter Iteration 9/36 [2022-09-21 14:31:52,683 INFO L642 ngineConcurrentUtils]: Filter Iteration 10/36 [2022-09-21 14:31:52,827 INFO L642 ngineConcurrentUtils]: Filter Iteration 11/36 [2022-09-21 14:31:52,988 INFO L642 ngineConcurrentUtils]: Filter Iteration 12/36 [2022-09-21 14:31:53,133 INFO L642 ngineConcurrentUtils]: Filter Iteration 13/36 [2022-09-21 14:31:53,275 INFO L642 ngineConcurrentUtils]: Filter Iteration 14/36 [2022-09-21 14:31:53,438 INFO L642 ngineConcurrentUtils]: Filter Iteration 15/36 [2022-09-21 14:31:53,588 INFO L642 ngineConcurrentUtils]: Filter Iteration 16/36 [2022-09-21 14:31:53,729 INFO L642 ngineConcurrentUtils]: Filter Iteration 17/36 [2022-09-21 14:31:53,869 INFO L642 ngineConcurrentUtils]: Filter Iteration 18/36 [2022-09-21 14:31:54,015 INFO L642 ngineConcurrentUtils]: Filter Iteration 19/36 [2022-09-21 14:31:54,134 INFO L642 ngineConcurrentUtils]: Filter Iteration 20/36 [2022-09-21 14:31:54,275 INFO L642 ngineConcurrentUtils]: Filter Iteration 21/36 [2022-09-21 14:31:54,425 INFO L642 ngineConcurrentUtils]: Filter Iteration 22/36 [2022-09-21 14:31:54,607 INFO L642 ngineConcurrentUtils]: Filter Iteration 23/36 [2022-09-21 14:31:54,737 INFO L642 ngineConcurrentUtils]: Filter Iteration 24/36 [2022-09-21 14:31:54,879 INFO L642 ngineConcurrentUtils]: Filter Iteration 25/36 [2022-09-21 14:31:55,010 INFO L642 ngineConcurrentUtils]: Filter Iteration 26/36 [2022-09-21 14:31:55,158 INFO L642 ngineConcurrentUtils]: Filter Iteration 27/36 [2022-09-21 14:31:55,318 INFO L642 ngineConcurrentUtils]: Filter Iteration 28/36 [2022-09-21 14:31:55,441 INFO L642 ngineConcurrentUtils]: Filter Iteration 29/36 [2022-09-21 14:31:55,584 INFO L642 ngineConcurrentUtils]: Filter Iteration 30/36 [2022-09-21 14:31:55,708 INFO L642 ngineConcurrentUtils]: Filter Iteration 31/36 [2022-09-21 14:31:55,851 INFO L642 ngineConcurrentUtils]: Filter Iteration 32/36 [2022-09-21 14:31:55,998 INFO L642 ngineConcurrentUtils]: Filter Iteration 33/36 [2022-09-21 14:31:56,145 INFO L642 ngineConcurrentUtils]: Filter Iteration 34/36 [2022-09-21 14:31:56,293 INFO L642 ngineConcurrentUtils]: Filter Iteration 35/36 [2022-09-21 14:31:56,436 INFO L642 ngineConcurrentUtils]: Filter Iteration 36/36 [2022-09-21 14:31:56,570 INFO L651 ngineConcurrentUtils]: Number of combinations: 19 [2022-09-21 14:31:56,574 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:31:56,575 INFO L396 ointEngineConcurrent]: Reduced size from 16 to 2 [2022-09-21 14:31:56,575 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:56,584 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:31:56,591 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread1 with variables: [q1, q2, q1_front, N, j, q2_back, i, q2_front, q1_back] [2022-09-21 14:31:56,591 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:31:56,591 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:31:56,591 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:31:56,591 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:31:56,591 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:31:56,591 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:31:56,591 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread2 with variables: [q1, q2, q1_front, N, j, q2_back, i, q2_front, q1_back] [2022-09-21 14:31:56,591 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:31:56,591 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:31:56,592 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:31:56,592 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:31:56,592 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:31:56,592 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:31:56,597 INFO L320 AbstractInterpreter]: Some error location(s) were reachable [2022-09-21 14:31:56,615 INFO L329 AbstractInterpreter]: No benchmarks available [2022-09-21 14:31:56,615 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2022-09-21 14:31:56,617 INFO L158 Benchmark]: Toolchain (without parser) took 5841.59ms. Allocated memory was 163.6MB in the beginning and 225.4MB in the end (delta: 61.9MB). Free memory was 118.1MB in the beginning and 187.9MB in the end (delta: -69.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:31:56,617 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 163.6MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:31:56,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.08ms. Allocated memory is still 163.6MB. Free memory was 118.0MB in the beginning and 116.6MB in the end (delta: 1.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-21 14:31:56,618 INFO L158 Benchmark]: Boogie Preprocessor took 34.34ms. Allocated memory is still 163.6MB. Free memory was 116.5MB in the beginning and 115.6MB in the end (delta: 896.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:31:56,618 INFO L158 Benchmark]: RCFGBuilder took 231.94ms. Allocated memory is still 163.6MB. Free memory was 115.5MB in the beginning and 105.8MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-21 14:31:56,619 INFO L158 Benchmark]: Abstract Interpretation took 5535.35ms. Allocated memory was 163.6MB in the beginning and 225.4MB in the end (delta: 61.9MB). Free memory was 105.7MB in the beginning and 187.9MB in the end (delta: -82.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:31:56,621 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 163.6MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.08ms. Allocated memory is still 163.6MB. Free memory was 118.0MB in the beginning and 116.6MB in the end (delta: 1.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.34ms. Allocated memory is still 163.6MB. Free memory was 116.5MB in the beginning and 115.6MB in the end (delta: 896.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 231.94ms. Allocated memory is still 163.6MB. Free memory was 115.5MB in the beginning and 105.8MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Abstract Interpretation took 5535.35ms. Allocated memory was 163.6MB in the beginning and 225.4MB in the end (delta: 61.9MB). Free memory was 105.7MB in the beginning and 187.9MB in the end (delta: -82.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 62]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L56] 0 assume (i == j && i == 0) && q1_front == q1_back && q2_front == q2_back; [L57] FORK 0 fork 1 thread1(); [L58] FORK 0 fork 2, 2 thread2(); [L59] JOIN 0 join 1; [L60] JOIN 0 join 2, 2; [L61] 0 assume !(i == j); [L62] 0 assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-09-21 14:31:56,698 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 14:31:56,861 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...