/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/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs RABIN_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/regression/fork_join_in_loop.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:36:32,830 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:36:32,876 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:36:32,909 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:36:32,909 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:36:32,910 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:36:32,911 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:36:32,911 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:36:32,911 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:36:32,912 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:36:32,912 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:36:32,912 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:36:32,915 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:36:32,915 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:36:32,916 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:36:32,916 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:36:32,916 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:36:32,917 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:36:32,917 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:36:32,917 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:36:32,918 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:36:32,919 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:36:32,920 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:36:32,920 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:36:32,920 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:36:32,921 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:36:32,921 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:36:32,921 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:36:32,921 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:36:32,922 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:36:32,922 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:36:32,922 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:36:32,923 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:36:32,923 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:36:32,924 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:36:33,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:36:33,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:36:33,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:36:33,149 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:36:33,150 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:36:33,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_join_in_loop.bpl [2023-10-12 17:36:33,151 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_join_in_loop.bpl' [2023-10-12 17:36:33,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:36:33,167 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:36:33,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:36:33,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:36:33,169 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:36:33,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/1) ... [2023-10-12 17:36:33,185 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/1) ... [2023-10-12 17:36:33,189 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:36:33,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:36:33,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:36:33,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:36:33,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:36:33,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/1) ... [2023-10-12 17:36:33,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/1) ... [2023-10-12 17:36:33,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/1) ... [2023-10-12 17:36:33,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/1) ... [2023-10-12 17:36:33,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/1) ... [2023-10-12 17:36:33,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/1) ... [2023-10-12 17:36:33,205 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/1) ... [2023-10-12 17:36:33,206 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/1) ... [2023-10-12 17:36:33,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:36:33,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:36:33,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:36:33,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:36:33,210 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/1) ... [2023-10-12 17:36:33,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:33,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:33,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:33,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:36:33,272 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2023-10-12 17:36:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-10-12 17:36:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-10-12 17:36:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:36:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:36:33,274 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:36:33,323 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:36:33,324 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:36:33,405 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:36:33,418 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:36:33,418 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:36:33,419 INFO L201 PluginConnector]: Adding new model fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:36:33 BoogieIcfgContainer [2023-10-12 17:36:33,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:36:33,421 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:36:33,421 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:36:33,425 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:36:33,425 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:36:33,425 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:36:33" (1/2) ... [2023-10-12 17:36:33,426 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25d5997c and model type fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:36:33, skipping insertion in model container [2023-10-12 17:36:33,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:36:33,427 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:36:33" (2/2) ... [2023-10-12 17:36:33,429 INFO L332 chiAutomizerObserver]: Analyzing ICFG fork_join_in_loop.bpl [2023-10-12 17:36:33,476 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:36:33,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 17 places, 15 transitions, 41 flow [2023-10-12 17:36:33,519 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2023-10-12 17:36:33,520 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:36:33,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14 conditions, 9 events. 1/9 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 1. Up to 2 conditions per place. [2023-10-12 17:36:33,523 INFO L82 GeneralOperation]: Start removeDead. Operand has 17 places, 15 transitions, 41 flow [2023-10-12 17:36:33,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 12 places, 9 transitions, 24 flow [2023-10-12 17:36:33,536 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:36:33,550 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 12 places, 9 transitions, 24 flow [2023-10-12 17:36:33,556 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 12 places, 9 transitions, 24 flow [2023-10-12 17:36:33,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 12 places, 9 transitions, 24 flow [2023-10-12 17:36:33,559 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2023-10-12 17:36:33,559 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:36:33,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14 conditions, 9 events. 1/9 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 1. Up to 2 conditions per place. [2023-10-12 17:36:33,560 INFO L119 LiptonReduction]: Number of co-enabled transitions 0 [2023-10-12 17:36:33,597 INFO L134 LiptonReduction]: Checked pairs total: 0 [2023-10-12 17:36:33,598 INFO L136 LiptonReduction]: Total number of compositions: 2 [2023-10-12 17:36:33,606 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:36:33,607 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:36:33,607 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:36:33,607 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:36:33,607 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:36:33,607 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:36:33,607 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:36:33,607 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:36:33,608 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 10 places, 7 transitions, 20 flow [2023-10-12 17:36:33,611 ERROR L47 etriNetUnfolderRabin]: [1:1A:[27] $Ultimate##0-->L23-1: Formula: (= 1 v_ULTIMATE.start_x_1) InVars {} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_1} AuxVars[] AssignedVars[ULTIMATE.start_x][3]][2:2A:[23] L23-1-->L24: Formula: (< v_ULTIMATE.start_x_2 3) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_2} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_2} AuxVars[] AssignedVars[][2], 4:3A:[34] L24-->$Ultimate##0: Formula: (and (= v_fooThread1of1ForFork0_thidvar0_2 v_ULTIMATE.start_x_9) (= v_fooThread1of1ForFork0_i_2 v_ULTIMATE.start_x_9)) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_9} OutVars{fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_2, fooThread1of1ForFork0_y=v_fooThread1of1ForFork0_y_4, fooThread1of1ForFork0_i=v_fooThread1of1ForFork0_i_2, ULTIMATE.start_x=v_ULTIMATE.start_x_9} AuxVars[] AssignedVars[fooThread1of1ForFork0_thidvar0, fooThread1of1ForFork0_y, fooThread1of1ForFork0_i][4], 5:4A:[38] $Ultimate##0-->fooEXIT: Formula: (= v_fooThread1of1ForFork0_y_5 4) InVars {} OutVars{fooThread1of1ForFork0_y=v_fooThread1of1ForFork0_y_5} AuxVars[] AssignedVars[fooThread1of1ForFork0_y][6], 6:5A:[35] fooEXIT-->L25: Formula: (= v_fooThread1of1ForFork0_thidvar0_4 v_ULTIMATE.start_x_11) InVars {fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_4, ULTIMATE.start_x=v_ULTIMATE.start_x_11} OutVars{fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_4, ULTIMATE.start_x=v_ULTIMATE.start_x_11} AuxVars[] AssignedVars[][0], 7:6A:[18] L25-->L23-1: Formula: (= (+ 1 v_ULTIMATE.start_x_4) v_ULTIMATE.start_x_3) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_4} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_3} AuxVars[] AssignedVars[ULTIMATE.start_x][1]] [2023-10-12 17:36:33,613 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:36:33,613 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-10-12 17:36:33,613 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:36:33,629 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:36:33,632 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:36:33,633 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 10 places, 7 transitions, 20 flow [2023-10-12 17:36:33,635 ERROR L47 etriNetUnfolderRabin]: [1:1A:[27] $Ultimate##0-->L23-1: Formula: (= 1 v_ULTIMATE.start_x_1) InVars {} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_1} AuxVars[] AssignedVars[ULTIMATE.start_x][3]][2:2A:[23] L23-1-->L24: Formula: (< v_ULTIMATE.start_x_2 3) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_2} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_2} AuxVars[] AssignedVars[][2], 4:3A:[34] L24-->$Ultimate##0: Formula: (and (= v_fooThread1of1ForFork0_thidvar0_2 v_ULTIMATE.start_x_9) (= v_fooThread1of1ForFork0_i_2 v_ULTIMATE.start_x_9)) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_9} OutVars{fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_2, fooThread1of1ForFork0_y=v_fooThread1of1ForFork0_y_4, fooThread1of1ForFork0_i=v_fooThread1of1ForFork0_i_2, ULTIMATE.start_x=v_ULTIMATE.start_x_9} AuxVars[] AssignedVars[fooThread1of1ForFork0_thidvar0, fooThread1of1ForFork0_y, fooThread1of1ForFork0_i][4], 5:4A:[38] $Ultimate##0-->fooEXIT: Formula: (= v_fooThread1of1ForFork0_y_5 4) InVars {} OutVars{fooThread1of1ForFork0_y=v_fooThread1of1ForFork0_y_5} AuxVars[] AssignedVars[fooThread1of1ForFork0_y][6], 6:5A:[35] fooEXIT-->L25: Formula: (= v_fooThread1of1ForFork0_thidvar0_4 v_ULTIMATE.start_x_11) InVars {fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_4, ULTIMATE.start_x=v_ULTIMATE.start_x_11} OutVars{fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_4, ULTIMATE.start_x=v_ULTIMATE.start_x_11} AuxVars[] AssignedVars[][0], 7:6A:[18] L25-->L23-1: Formula: (= (+ 1 v_ULTIMATE.start_x_4) v_ULTIMATE.start_x_3) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_4} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_3} AuxVars[] AssignedVars[ULTIMATE.start_x][1]] [2023-10-12 17:36:33,635 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:36:33,636 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-10-12 17:36:33,636 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:36:33,636 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:36:33,640 INFO L748 eck$LassoCheckResult]: Stem: 21#[$Ultimate##0]true [27] $Ultimate##0-->L23-1: Formula: (= 1 v_ULTIMATE.start_x_1) InVars {} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_1} AuxVars[] AssignedVars[ULTIMATE.start_x] 23#[L23-1]true [2023-10-12 17:36:33,640 INFO L750 eck$LassoCheckResult]: Loop: 23#[L23-1]true [23] L23-1-->L24: Formula: (< v_ULTIMATE.start_x_2 3) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_2} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_2} AuxVars[] AssignedVars[] 26#[L24]true [34] L24-->$Ultimate##0: Formula: (and (= v_fooThread1of1ForFork0_thidvar0_2 v_ULTIMATE.start_x_9) (= v_fooThread1of1ForFork0_i_2 v_ULTIMATE.start_x_9)) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_9} OutVars{fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_2, fooThread1of1ForFork0_y=v_fooThread1of1ForFork0_y_4, fooThread1of1ForFork0_i=v_fooThread1of1ForFork0_i_2, ULTIMATE.start_x=v_ULTIMATE.start_x_9} AuxVars[] AssignedVars[fooThread1of1ForFork0_thidvar0, fooThread1of1ForFork0_y, fooThread1of1ForFork0_i] 28#[$Ultimate##0, L24-1]true [38] $Ultimate##0-->fooEXIT: Formula: (= v_fooThread1of1ForFork0_y_5 4) InVars {} OutVars{fooThread1of1ForFork0_y=v_fooThread1of1ForFork0_y_5} AuxVars[] AssignedVars[fooThread1of1ForFork0_y] 30#[fooEXIT, L24-1]true [35] fooEXIT-->L25: Formula: (= v_fooThread1of1ForFork0_thidvar0_4 v_ULTIMATE.start_x_11) InVars {fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_4, ULTIMATE.start_x=v_ULTIMATE.start_x_11} OutVars{fooThread1of1ForFork0_thidvar0=v_fooThread1of1ForFork0_thidvar0_4, ULTIMATE.start_x=v_ULTIMATE.start_x_11} AuxVars[] AssignedVars[] 32#[L25]true [18] L25-->L23-1: Formula: (= (+ 1 v_ULTIMATE.start_x_4) v_ULTIMATE.start_x_3) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_4} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_3} AuxVars[] AssignedVars[ULTIMATE.start_x] 23#[L23-1]true [2023-10-12 17:36:33,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:33,645 INFO L85 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2023-10-12 17:36:33,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:36:33,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881344047] [2023-10-12 17:36:33,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:36:33,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:36:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:33,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:36:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:33,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:36:33,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:33,736 INFO L85 PathProgramCache]: Analyzing trace with hash 50920649, now seen corresponding path program 1 times [2023-10-12 17:36:33,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:36:33,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165476309] [2023-10-12 17:36:33,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:36:33,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:36:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:33,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:36:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:33,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:36:33,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:33,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1682782256, now seen corresponding path program 1 times [2023-10-12 17:36:33,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:36:33,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259485597] [2023-10-12 17:36:33,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:36:33,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:36:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:33,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:36:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:36:33,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:36:33,878 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:36:33,879 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:36:33,879 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:36:33,879 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:36:33,879 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:36:33,879 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:33,879 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:36:33,879 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:36:33,879 INFO L133 ssoRankerPreferences]: Filename of dumped script: fork_join_in_loop.bpl_BEv2_Iteration1_Loop [2023-10-12 17:36:33,879 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:36:33,880 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:36:33,891 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:36:33,906 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:36:33,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:36:33,954 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:36:33,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:33,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:33,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:34,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:36:34,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:36:34,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:36:34,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:36:34,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:34,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:34,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:34,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:36:34,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:36:34,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:36:34,049 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:36:34,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:36:34,053 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:36:34,053 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:36:34,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:36:34,053 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:36:34,054 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:36:34,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:34,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:36:34,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:36:34,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: fork_join_in_loop.bpl_BEv2_Iteration1_Loop [2023-10-12 17:36:34,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:36:34,054 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:36:34,055 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:36:34,059 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:36:34,105 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:36:34,109 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:36:34,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:34,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:34,111 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:34,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:36:34,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:36:34,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:36:34,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:36:34,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:36:34,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:36:34,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:36:34,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:36:34,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:36:34,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:36:34,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-10-12 17:36:34,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:34,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:34,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:34,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:36:34,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:36:34,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:36:34,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:36:34,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:36:34,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:36:34,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:36:34,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:36:34,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:36:34,193 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:36:34,198 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:36:34,198 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:36:34,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:36:34,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:36:34,201 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:36:34,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:36:34,234 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:36:34,234 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:36:34,234 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:36:34,235 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_x) = -2*ULTIMATE.start_x + 5 Supporting invariants [] [2023-10-12 17:36:34,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:36:34,245 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:36:34,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:36:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:36:34,283 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:36:34,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:36:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:36:34,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:36:34,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:36:34,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:36:34,373 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:36:34,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:36:34,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:36:34,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2023-10-12 17:36:34,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 77 transitions. Stem has 1 letters. Loop has 5 letters. [2023-10-12 17:36:34,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:36:34,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 77 transitions. Stem has 6 letters. Loop has 5 letters. [2023-10-12 17:36:34,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:36:34,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 77 transitions. Stem has 1 letters. Loop has 10 letters. [2023-10-12 17:36:34,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:36:34,469 INFO L430 stractBuchiCegarLoop]: Abstraction has has 16 places, 42 transitions, 204 flow [2023-10-12 17:36:34,469 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:36:34,469 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 16 places, 42 transitions, 204 flow [2023-10-12 17:36:34,471 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2023-10-12 17:36:34,471 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:36:34,471 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is empty [2023-10-12 17:36:34,476 INFO L201 PluginConnector]: Adding new model fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:36:34 BoogieIcfgContainer [2023-10-12 17:36:34,476 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:36:34,477 INFO L158 Benchmark]: Toolchain (without parser) took 1310.03ms. Allocated memory was 178.3MB in the beginning and 259.0MB in the end (delta: 80.7MB). Free memory was 132.2MB in the beginning and 201.1MB in the end (delta: -68.9MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. [2023-10-12 17:36:34,477 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.25ms. Allocated memory is still 178.3MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:36:34,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.15ms. Allocated memory is still 178.3MB. Free memory was 132.2MB in the beginning and 130.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:36:34,478 INFO L158 Benchmark]: Boogie Preprocessor took 14.74ms. Allocated memory is still 178.3MB. Free memory was 130.5MB in the beginning and 129.6MB in the end (delta: 899.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:36:34,479 INFO L158 Benchmark]: RCFGBuilder took 211.22ms. Allocated memory is still 178.3MB. Free memory was 129.4MB in the beginning and 120.8MB in the end (delta: 8.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:36:34,479 INFO L158 Benchmark]: BuchiAutomizer took 1054.95ms. Allocated memory was 178.3MB in the beginning and 259.0MB in the end (delta: 80.7MB). Free memory was 120.8MB in the beginning and 201.1MB in the end (delta: -80.3MB). Peak memory consumption was 147.2kB. Max. memory is 8.0GB. [2023-10-12 17:36:34,482 INFO L338 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 0.25ms. Allocated memory is still 178.3MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.15ms. Allocated memory is still 178.3MB. Free memory was 132.2MB in the beginning and 130.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.74ms. Allocated memory is still 178.3MB. Free memory was 130.5MB in the beginning and 129.6MB in the end (delta: 899.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 211.22ms. Allocated memory is still 178.3MB. Free memory was 129.4MB in the beginning and 120.8MB in the end (delta: 8.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1054.95ms. Allocated memory was 178.3MB in the beginning and 259.0MB in the end (delta: 80.7MB). Free memory was 120.8MB in the beginning and 201.1MB in the end (delta: -80.3MB). Peak memory consumption was 147.2kB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 5 + -2 * x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:0. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 27 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp84 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf89 smp100 dnf100 smp100 tf107 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 12 PlacesBefore, 10 PlacesAfterwards, 9 TransitionsBefore, 7 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:36:34,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:36:34,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...