/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/concurrent_increment.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:20:25,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:20:25,299 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:20:25,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:20:25,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:20:25,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:20:25,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:20:25,333 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:20:25,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:20:25,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:20:25,333 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:20:25,333 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:20:25,333 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:20:25,333 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:20:25,333 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:20:25,333 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:20:25,333 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:20:25,333 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:20:25,334 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:20:25,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:20:25,334 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:20:25,335 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:20:25,335 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:20:25,335 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:20:25,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:20:25,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:20:25,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:20:25,534 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:20:25,534 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:20:25,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/regression/concurrent_increment.bpl [2025-04-26 16:20:25,535 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/regression/concurrent_increment.bpl' [2025-04-26 16:20:25,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:20:25,551 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:20:25,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:20:25,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:20:25,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:20:25,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,581 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:20:25,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:20:25,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:20:25,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:20:25,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:20:25,588 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,589 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,590 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,592 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:20:25,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:20:25,600 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:20:25,600 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:20:25,601 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/1) ... [2025-04-26 16:20:25,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:25,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:25,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:25,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:20:25,651 INFO L124 BoogieDeclarations]: Specification and implementation of procedure dec given in one single declaration [2025-04-26 16:20:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2025-04-26 16:20:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2025-04-26 16:20:25,652 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:20:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:20:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:20:25,652 INFO L124 BoogieDeclarations]: Specification and implementation of procedure inc given in one single declaration [2025-04-26 16:20:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2025-04-26 16:20:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2025-04-26 16:20:25,653 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:20:25,683 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:20:25,685 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:20:25,763 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:20:25,763 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:20:25,770 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:20:25,770 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:20:25,771 INFO L201 PluginConnector]: Adding new model concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:20:25 BoogieIcfgContainer [2025-04-26 16:20:25,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:20:25,772 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:20:25,772 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:20:25,776 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:20:25,779 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:20:25,779 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:20:25" (1/2) ... [2025-04-26 16:20:25,781 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58bb697b and model type concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:20:25, skipping insertion in model container [2025-04-26 16:20:25,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:20:25,782 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:20:25" (2/2) ... [2025-04-26 16:20:25,783 INFO L376 chiAutomizerObserver]: Analyzing ICFG concurrent_increment.bpl [2025-04-26 16:20:25,823 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:20:25,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 62 flow [2025-04-26 16:20:25,874 INFO L116 PetriNetUnfolderBase]: 2/20 cut-off events. [2025-04-26 16:20:25,875 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:20:25,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 20 events. 2/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2025-04-26 16:20:25,880 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 24 transitions, 62 flow [2025-04-26 16:20:25,883 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 20 transitions, 52 flow [2025-04-26 16:20:25,883 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 25 places, 20 transitions, 52 flow [2025-04-26 16:20:25,891 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:20:25,892 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:20:25,892 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:20:25,892 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:20:25,892 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:20:25,892 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:20:25,892 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:20:25,892 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:20:25,893 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:20:25,921 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 33 [2025-04-26 16:20:25,921 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:20:25,921 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:20:25,926 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:20:25,926 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:20:25,926 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:20:25,926 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 53 states, but on-demand construction may add more states [2025-04-26 16:20:25,928 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 33 [2025-04-26 16:20:25,928 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:20:25,929 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:20:25,929 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:20:25,929 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:20:25,933 INFO L752 eck$LassoCheckResult]: Stem: "[37] $Ultimate##0-->L20: Formula: (= v_x_4 0) InVars {} OutVars{x=v_x_4} AuxVars[] AssignedVars[x]" "[62] L20-->$Ultimate##0: Formula: (= v_incThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_12, incThread1of1ForFork0_thidvar0=v_incThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[incThread1of1ForFork0_i, incThread1of1ForFork0_thidvar0]" "[54] $Ultimate##0-->L33-1: Formula: (= v_incThread1of1ForFork0_i_1 0) InVars {} OutVars{incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_1} AuxVars[] AssignedVars[incThread1of1ForFork0_i]" [2025-04-26 16:20:25,933 INFO L754 eck$LassoCheckResult]: Loop: "[56] L33-1-->L34: Formula: (< v_incThread1of1ForFork0_i_5 v_n_3) InVars {n=v_n_3, incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_5} OutVars{n=v_n_3, incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_5} AuxVars[] AssignedVars[]" "[58] L34-->L35: Formula: (= (+ v_x_7 1) v_x_6) InVars {x=v_x_7} OutVars{x=v_x_6} AuxVars[] AssignedVars[x]" "[59] L35-->L33-1: Formula: (= v_incThread1of1ForFork0_i_8 (+ v_incThread1of1ForFork0_i_7 1)) InVars {incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_7} OutVars{incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_8} AuxVars[] AssignedVars[incThread1of1ForFork0_i]" [2025-04-26 16:20:25,936 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:20:25,937 INFO L85 PathProgramCache]: Analyzing trace with hash 67324, now seen corresponding path program 1 times [2025-04-26 16:20:25,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:20:25,942 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991490604] [2025-04-26 16:20:25,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:20:25,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:20:25,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:20:25,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:20:25,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:25,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:25,991 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:20:25,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:20:25,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:20:25,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:25,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:26,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:20:26,016 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:20:26,016 INFO L85 PathProgramCache]: Analyzing trace with hash 85464, now seen corresponding path program 1 times [2025-04-26 16:20:26,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:20:26,016 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894307046] [2025-04-26 16:20:26,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:20:26,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:20:26,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:20:26,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:20:26,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:26,031 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:20:26,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:20:26,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:20:26,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:26,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:20:26,036 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:20:26,037 INFO L85 PathProgramCache]: Analyzing trace with hash 2005704957, now seen corresponding path program 1 times [2025-04-26 16:20:26,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:20:26,037 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349356364] [2025-04-26 16:20:26,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:20:26,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:20:26,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:20:26,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:20:26,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:26,047 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:20:26,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:20:26,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:20:26,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:26,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:20:26,128 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:20:26,129 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:20:26,129 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:20:26,129 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:20:26,129 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:20:26,129 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,129 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:20:26,130 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:20:26,130 INFO L132 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_petrified1_Iteration1_Loop [2025-04-26 16:20:26,130 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:20:26,130 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:20:26,139 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:20:26,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:20:26,205 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:20:26,205 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:20:26,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:26,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:26,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:20:26,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:20:26,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:20:26,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-04-26 16:20:26,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:26,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:26,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:20:26,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:20:26,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:20:26,267 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:20:26,267 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=1}, {x=7}, {x=-7}] Lambdas: [1, 2, 1] Nus: [0, 1] [2025-04-26 16:20:26,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 16:20:26,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:26,274 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:26,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:20:26,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:20:26,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:20:26,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 16:20:26,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:26,294 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:26,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:20:26,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:20:26,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:20:26,362 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:20:26,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-04-26 16:20:26,366 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:20:26,366 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:20:26,366 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:20:26,366 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:20:26,366 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:20:26,366 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,366 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:20:26,366 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:20:26,366 INFO L132 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_petrified1_Iteration1_Loop [2025-04-26 16:20:26,366 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:20:26,366 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:20:26,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:20:26,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:20:26,402 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:20:26,404 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:20:26,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:26,407 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:26,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:20:26,408 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 [2025-04-26 16:20:26,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:20:26,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:20:26,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:20:26,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:20:26,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:20:26,422 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:20:26,422 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:20:26,425 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:20:26,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:20:26,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:26,432 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:26,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:20:26,450 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 [2025-04-26 16:20:26,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:20:26,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:20:26,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:20:26,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:20:26,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:20:26,460 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:20:26,460 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:20:26,463 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:20:26,465 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:20:26,465 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:20:26,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:26,468 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:26,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:20:26,471 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:20:26,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:20:26,475 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:20:26,475 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:20:26,476 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(incThread1of1ForFork0_i, n) = -1*incThread1of1ForFork0_i + 1*n Supporting invariants [] [2025-04-26 16:20:26,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:20:26,483 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:20:26,511 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:20:26,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:20:26,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:20:26,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:20:26,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:20:26,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:20:26,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:20:26,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:20:26,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:20:26,539 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:20:26,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:20:26,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:20:26,609 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 [2025-04-26 16:20:26,611 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 53 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:20:26,710 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 53 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 128 states and 298 transitions. Complement of second has 6 states. [2025-04-26 16:20:26,712 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:20:26,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:20:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2025-04-26 16:20:26,719 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 43 transitions. Stem has 3 letters. Loop has 3 letters. [2025-04-26 16:20:26,719 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:20:26,719 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 43 transitions. Stem has 6 letters. Loop has 3 letters. [2025-04-26 16:20:26,719 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:20:26,720 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 43 transitions. Stem has 3 letters. Loop has 6 letters. [2025-04-26 16:20:26,720 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:20:26,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 298 transitions. [2025-04-26 16:20:26,724 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-04-26 16:20:26,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 70 states and 165 transitions. [2025-04-26 16:20:26,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2025-04-26 16:20:26,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2025-04-26 16:20:26,728 INFO L74 IsDeterministic]: Start isDeterministic. Operand 70 states and 165 transitions. [2025-04-26 16:20:26,728 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:20:26,728 INFO L218 hiAutomatonCegarLoop]: Abstraction has 70 states and 165 transitions. [2025-04-26 16:20:26,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states and 165 transitions. [2025-04-26 16:20:26,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 59. [2025-04-26 16:20:26,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 2.3728813559322033) internal successors, (in total 140), 58 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:20:26,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 140 transitions. [2025-04-26 16:20:26,746 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 140 transitions. [2025-04-26 16:20:26,746 INFO L438 stractBuchiCegarLoop]: Abstraction has 59 states and 140 transitions. [2025-04-26 16:20:26,746 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:20:26,746 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 140 transitions. [2025-04-26 16:20:26,747 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-04-26 16:20:26,747 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:20:26,747 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:20:26,747 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:20:26,748 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:20:26,748 INFO L752 eck$LassoCheckResult]: Stem: "[37] $Ultimate##0-->L20: Formula: (= v_x_4 0) InVars {} OutVars{x=v_x_4} AuxVars[] AssignedVars[x]" "[62] L20-->$Ultimate##0: Formula: (= v_incThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{incThread1of1ForFork0_i=v_incThread1of1ForFork0_i_12, incThread1of1ForFork0_thidvar0=v_incThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[incThread1of1ForFork0_i, incThread1of1ForFork0_thidvar0]" "[65] L20-1-->$Ultimate##0: Formula: (and (= v_decThread1of1ForFork1_thidvar1_2 2) (= v_decThread1of1ForFork1_thidvar0_2 2)) InVars {} OutVars{decThread1of1ForFork1_thidvar0=v_decThread1of1ForFork1_thidvar0_2, decThread1of1ForFork1_thidvar1=v_decThread1of1ForFork1_thidvar1_2, decThread1of1ForFork1_i=v_decThread1of1ForFork1_i_12} AuxVars[] AssignedVars[decThread1of1ForFork1_thidvar0, decThread1of1ForFork1_thidvar1, decThread1of1ForFork1_i]" "[48] $Ultimate##0-->L44-1: Formula: (= 0 v_decThread1of1ForFork1_i_1) InVars {} OutVars{decThread1of1ForFork1_i=v_decThread1of1ForFork1_i_1} AuxVars[] AssignedVars[decThread1of1ForFork1_i]" [2025-04-26 16:20:26,748 INFO L754 eck$LassoCheckResult]: Loop: "[50] L44-1-->L45: Formula: (< v_decThread1of1ForFork1_i_5 v_n_1) InVars {n=v_n_1, decThread1of1ForFork1_i=v_decThread1of1ForFork1_i_5} OutVars{n=v_n_1, decThread1of1ForFork1_i=v_decThread1of1ForFork1_i_5} AuxVars[] AssignedVars[]" "[52] L45-->L46: Formula: (= v_x_2 (+ v_x_1 1)) InVars {x=v_x_2} OutVars{x=v_x_1} AuxVars[] AssignedVars[x]" "[53] L46-->L44-1: Formula: (= (+ 1 v_decThread1of1ForFork1_i_7) v_decThread1of1ForFork1_i_8) InVars {decThread1of1ForFork1_i=v_decThread1of1ForFork1_i_7} OutVars{decThread1of1ForFork1_i=v_decThread1of1ForFork1_i_8} AuxVars[] AssignedVars[decThread1of1ForFork1_i]" [2025-04-26 16:20:26,748 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:20:26,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2087433, now seen corresponding path program 1 times [2025-04-26 16:20:26,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:20:26,749 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707374972] [2025-04-26 16:20:26,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:20:26,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:20:26,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:20:26,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:20:26,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:26,752 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:20:26,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:20:26,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:20:26,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:26,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:20:26,755 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:20:26,755 INFO L85 PathProgramCache]: Analyzing trace with hash 79506, now seen corresponding path program 1 times [2025-04-26 16:20:26,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:20:26,755 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499665885] [2025-04-26 16:20:26,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:20:26,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:20:26,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:20:26,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:20:26,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:26,758 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:20:26,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:20:26,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:20:26,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:26,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:20:26,761 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:20:26,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2057224074, now seen corresponding path program 1 times [2025-04-26 16:20:26,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:20:26,761 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787577366] [2025-04-26 16:20:26,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:20:26,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:20:26,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:20:26,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:20:26,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:26,766 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:20:26,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:20:26,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:20:26,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:26,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:20:26,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:20:26,790 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:20:26,791 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:20:26,791 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:20:26,791 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:20:26,791 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:20:26,791 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,791 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:20:26,791 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:20:26,791 INFO L132 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_petrified1_Iteration2_Loop [2025-04-26 16:20:26,791 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:20:26,791 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:20:26,792 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:20:26,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:20:26,819 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:20:26,819 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:20:26,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:26,822 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:26,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:20:26,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:20:26,825 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:20:26,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-04-26 16:20:26,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:26,844 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:26,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:20:26,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:20:26,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:20:26,871 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:20:26,871 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=3}, {x=-5}, {x=1}] Lambdas: [1, 1, 1] Nus: [0, 0] [2025-04-26 16:20:26,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 16:20:26,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:26,879 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:26,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:20:26,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:20:26,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:20:26,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 16:20:26,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:26,899 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:26,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 16:20:26,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:20:26,901 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:20:26,972 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:20:26,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:20:26,978 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:20:26,978 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:20:26,978 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:20:26,978 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:20:26,978 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:20:26,978 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:26,978 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:20:26,978 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:20:26,978 INFO L132 ssoRankerPreferences]: Filename of dumped script: concurrent_increment.bpl_petrified1_Iteration2_Loop [2025-04-26 16:20:26,978 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:20:26,978 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:20:26,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:20:26,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:20:27,018 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:20:27,018 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:20:27,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:27,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:27,020 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:27,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 16:20:27,023 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 [2025-04-26 16:20:27,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:20:27,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:20:27,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:20:27,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:20:27,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:20:27,035 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:20:27,035 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:20:27,037 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:20:27,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-04-26 16:20:27,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:27,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:27,045 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:27,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 16:20:27,047 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 [2025-04-26 16:20:27,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:20:27,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:20:27,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:20:27,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:20:27,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:20:27,060 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:20:27,060 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:20:27,075 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:20:27,088 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:20:27,089 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:20:27,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:20:27,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:20:27,090 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:20:27,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-04-26 16:20:27,093 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:20:27,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-04-26 16:20:27,099 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:20:27,099 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:20:27,099 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, decThread1of1ForFork1_i) = 1*n - 1*decThread1of1ForFork1_i Supporting invariants [] [2025-04-26 16:20:27,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 16:20:27,108 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:20:27,122 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:20:27,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:20:27,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:20:27,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:27,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:20:27,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:20:27,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:20:27,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:20:27,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:20:27,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:20:27,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:20:27,149 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:20:27,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:20:27,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:20:27,180 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 [2025-04-26 16:20:27,180 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 140 transitions. cyclomatic complexity: 91 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:20:27,232 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 140 transitions. cyclomatic complexity: 91. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 145 states and 358 transitions. Complement of second has 6 states. [2025-04-26 16:20:27,233 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:20:27,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:20:27,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2025-04-26 16:20:27,235 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 4 letters. Loop has 3 letters. [2025-04-26 16:20:27,235 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:20:27,235 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 7 letters. Loop has 3 letters. [2025-04-26 16:20:27,235 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:20:27,235 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 4 letters. Loop has 6 letters. [2025-04-26 16:20:27,235 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:20:27,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 145 states and 358 transitions. [2025-04-26 16:20:27,238 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:20:27,238 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 145 states to 0 states and 0 transitions. [2025-04-26 16:20:27,238 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:20:27,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:20:27,239 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:20:27,239 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:20:27,239 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:20:27,240 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:20:27,240 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:20:27,240 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:20:27,240 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:20:27,240 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:20:27,240 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:20:27,244 INFO L201 PluginConnector]: Adding new model concurrent_increment.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:20:27 BoogieIcfgContainer [2025-04-26 16:20:27,245 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:20:27,245 INFO L158 Benchmark]: Toolchain (without parser) took 1694.29ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 86.4MB in the beginning and 81.1MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:20:27,245 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:20:27,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.38ms. Allocated memory is still 159.4MB. Free memory was 86.2MB in the beginning and 84.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:20:27,246 INFO L158 Benchmark]: Boogie Preprocessor took 16.36ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 83.6MB in the end (delta: 983.6kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:20:27,246 INFO L158 Benchmark]: RCFGBuilder took 170.56ms. Allocated memory is still 159.4MB. Free memory was 83.4MB in the beginning and 74.8MB in the end (delta: 8.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:20:27,246 INFO L158 Benchmark]: BuchiAutomizer took 1472.57ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 74.7MB in the beginning and 81.1MB in the end (delta: -6.5MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:20:27,247 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 0.16ms. Allocated memory is still 159.4MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.38ms. Allocated memory is still 159.4MB. Free memory was 86.2MB in the beginning and 84.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 16.36ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 83.6MB in the end (delta: 983.6kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 170.56ms. Allocated memory is still 159.4MB. Free memory was 83.4MB in the beginning and 74.8MB in the end (delta: 8.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * BuchiAutomizer took 1472.57ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 74.7MB in the beginning and 81.1MB in the end (delta: -6.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 11 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 38 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp70 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -1 * i + n and consists of 4 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:20:27,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...