/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/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:22:01,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:22:01,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:22:01,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:22:01,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:22:01,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:22:01,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:22:01,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:22:01,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:22:01,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:22:01,931 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:22:01,931 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:22:01,931 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:22:01,931 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:22:01,931 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:22:01,931 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:22:01,931 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:22:01,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:22:01,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:22:01,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:22:01,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:22:01,932 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:22:01,933 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:22:01,933 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:22:02,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:22:02,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:22:02,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:22:02,170 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:22:02,170 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:22:02,172 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl [2025-04-26 16:22:02,174 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl' [2025-04-26 16:22:02,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:22:02,193 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:22:02,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:22:02,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:22:02,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:22:02,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,227 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:22:02,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:22:02,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:22:02,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:22:02,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:22:02,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,236 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:22:02,252 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:22:02,252 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:22:02,252 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:22:02,253 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/1) ... [2025-04-26 16:22:02,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:02,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:02,276 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 16:22:02,281 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 16:22:02,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:22:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:22:02,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:22:02,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:22:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:22:02,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:22:02,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:22:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:22:02,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:22:02,299 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 16:22:02,335 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:22:02,337 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:22:02,433 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:22:02,433 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:22:02,486 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:22:02,486 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-04-26 16:22:02,486 INFO L201 PluginConnector]: Adding new model unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:22:02 BoogieIcfgContainer [2025-04-26 16:22:02,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:22:02,487 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:22:02,487 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:22:02,491 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:22:02,492 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:22:02,492 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:02" (1/2) ... [2025-04-26 16:22:02,493 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76dca210 and model type unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:22:02, skipping insertion in model container [2025-04-26 16:22:02,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:22:02,493 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:22:02" (2/2) ... [2025-04-26 16:22:02,494 INFO L376 chiAutomizerObserver]: Analyzing ICFG unroll-cond-4.wvr.bpl [2025-04-26 16:22:02,521 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:22:02,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 22 places, 19 transitions, 52 flow [2025-04-26 16:22:02,568 INFO L116 PetriNetUnfolderBase]: 2/15 cut-off events. [2025-04-26 16:22:02,570 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:22:02,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 15 events. 2/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 9. Up to 2 conditions per place. [2025-04-26 16:22:02,573 INFO L82 GeneralOperation]: Start removeDead. Operand has 22 places, 19 transitions, 52 flow [2025-04-26 16:22:02,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 15 transitions, 42 flow [2025-04-26 16:22:02,579 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 20 places, 15 transitions, 42 flow [2025-04-26 16:22:02,588 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:22:02,588 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:22:02,588 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:22:02,588 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:22:02,588 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:22:02,588 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:22:02,588 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:22:02,588 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:22:02,590 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:22:02,608 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2025-04-26 16:22:02,609 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:02,609 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:02,612 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:22:02,612 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-04-26 16:22:02,613 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:22:02,613 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 21 states, but on-demand construction may add more states [2025-04-26 16:22:02,615 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2025-04-26 16:22:02,615 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:02,615 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:02,616 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:22:02,616 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-04-26 16:22:02,619 INFO L752 eck$LassoCheckResult]: Stem: "[64] $Ultimate##0-->L60: Formula: (and (= v_i1_5 v_x2_16) (= v_i1_5 0) (= v_i1_5 v_i2_20) (= v_i1_5 v_x1_4)) InVars {i1=v_i1_5, i2=v_i2_20, x1=v_x1_4, x2=v_x2_16} OutVars{i1=v_i1_5, i2=v_i2_20, x1=v_x1_4, x2=v_x2_16} AuxVars[] AssignedVars[]" "[76] L60-->L20: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:22:02,620 INFO L754 eck$LassoCheckResult]: Loop: "[69] L20-->L20: Formula: (and (= (+ v_i1_11 1) v_i1_10) (= (select v_f_11 v_x1_10) v_x1_9) (< v_i1_11 v_n_11)) InVars {i1=v_i1_11, x1=v_x1_10, n=v_n_11, f=v_f_11} OutVars{i1=v_i1_10, x1=v_x1_9, n=v_n_11, f=v_f_11} AuxVars[] AssignedVars[i1, x1]" [2025-04-26 16:22:02,626 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:02,626 INFO L85 PathProgramCache]: Analyzing trace with hash 3021, now seen corresponding path program 1 times [2025-04-26 16:22:02,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:02,631 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548362244] [2025-04-26 16:22:02,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:02,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:02,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:02,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:02,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:02,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:02,679 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:02,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:02,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:02,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:02,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:02,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:02,694 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:02,694 INFO L85 PathProgramCache]: Analyzing trace with hash 100, now seen corresponding path program 1 times [2025-04-26 16:22:02,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:02,694 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869356356] [2025-04-26 16:22:02,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:02,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:02,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:22:02,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:22:02,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:02,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:02,701 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:02,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:22:02,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:22:02,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:02,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:02,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:02,706 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:02,706 INFO L85 PathProgramCache]: Analyzing trace with hash 93720, now seen corresponding path program 1 times [2025-04-26 16:22:02,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:02,707 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749865612] [2025-04-26 16:22:02,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:02,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:02,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:02,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:02,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:02,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:02,712 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:02,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:02,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:02,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:02,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:02,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:02,799 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:02,799 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:02,800 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:02,800 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:02,800 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:22:02,800 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:02,801 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:02,801 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:02,801 INFO L132 ssoRankerPreferences]: Filename of dumped script: unroll-cond-4.wvr.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:22:02,801 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:02,801 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:02,810 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:02,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:02,823 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:02,826 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:02,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:02,921 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:02,924 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:02,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:02,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:02,928 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 16:22:02,930 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 16:22:02,930 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 16:22:02,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:02,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:02,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:02,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:02,952 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:22:02,952 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:22:02,960 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:02,972 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:22:02,972 INFO L437 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-04-26 16:22:02,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:02,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:02,976 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 16:22:03,015 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 16:22:03,015 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:03,042 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 16:22:03,042 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 16:22:03,043 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:03,043 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, i1) = 1*n - 1*i1 Supporting invariants [] [2025-04-26 16:22:03,050 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 16:22:03,052 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:03,074 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:03,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:03,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:03,085 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:03,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:03,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:03,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:03,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:22:03,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:22:03,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:03,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:03,098 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:03,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:03,101 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 16:22:03,144 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:22:03,157 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 21 states, but on-demand construction may add more states Second operand has 2 states, 2 states have (on average 1.5) internal successors, (in total 3), 2 states have internal predecessors, (3), 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 16:22:03,247 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 21 states, but on-demand construction may add more states. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (in total 3), 2 states have internal predecessors, (3), 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 49 states and 98 transitions. Complement of second has 5 states. [2025-04-26 16:22:03,251 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:22:03,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (in total 3), 2 states have internal predecessors, (3), 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 16:22:03,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2025-04-26 16:22:03,264 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 2 letters. Loop has 1 letters. [2025-04-26 16:22:03,265 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:03,265 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 3 letters. Loop has 1 letters. [2025-04-26 16:22:03,265 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:03,265 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:22:03,265 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:03,266 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 98 transitions. [2025-04-26 16:22:03,271 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2025-04-26 16:22:03,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 14 states and 30 transitions. [2025-04-26 16:22:03,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2025-04-26 16:22:03,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2025-04-26 16:22:03,277 INFO L74 IsDeterministic]: Start isDeterministic. Operand 14 states and 30 transitions. [2025-04-26 16:22:03,277 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:22:03,278 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 30 transitions. [2025-04-26 16:22:03,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 30 transitions. [2025-04-26 16:22:03,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2025-04-26 16:22:03,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (in total 26), 11 states have internal predecessors, (26), 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 16:22:03,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 26 transitions. [2025-04-26 16:22:03,298 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 26 transitions. [2025-04-26 16:22:03,298 INFO L438 stractBuchiCegarLoop]: Abstraction has 12 states and 26 transitions. [2025-04-26 16:22:03,299 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:22:03,299 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 26 transitions. [2025-04-26 16:22:03,299 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2025-04-26 16:22:03,299 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:03,299 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:03,301 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:22:03,301 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-04-26 16:22:03,301 INFO L752 eck$LassoCheckResult]: Stem: "[64] $Ultimate##0-->L60: Formula: (and (= v_i1_5 v_x2_16) (= v_i1_5 0) (= v_i1_5 v_i2_20) (= v_i1_5 v_x1_4)) InVars {i1=v_i1_5, i2=v_i2_20, x1=v_x1_4, x2=v_x2_16} OutVars{i1=v_i1_5, i2=v_i2_20, x1=v_x1_4, x2=v_x2_16} AuxVars[] AssignedVars[]" "[76] L60-->L20: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[79] L60-1-->L33: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:22:03,302 INFO L754 eck$LassoCheckResult]: Loop: "[72] L33-->L33: Formula: (and (= (select v_f_39 (select v_f_39 (select v_f_39 (select v_f_39 v_x2_80)))) v_x2_79) (= (+ v_i2_84 4) v_i2_83) (< (+ 3 v_i2_84) v_n_25)) InVars {i2=v_i2_84, n=v_n_25, f=v_f_39, x2=v_x2_80} OutVars{i2=v_i2_83, n=v_n_25, f=v_f_39, x2=v_x2_79} AuxVars[] AssignedVars[x2, i2]" [2025-04-26 16:22:03,302 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:03,302 INFO L85 PathProgramCache]: Analyzing trace with hash 93730, now seen corresponding path program 1 times [2025-04-26 16:22:03,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:03,302 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438260272] [2025-04-26 16:22:03,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:03,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:03,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:03,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:03,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:03,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:03,309 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:03,309 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:03,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:03,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:03,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:03,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:03,314 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:03,314 INFO L85 PathProgramCache]: Analyzing trace with hash 103, now seen corresponding path program 1 times [2025-04-26 16:22:03,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:03,314 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280427174] [2025-04-26 16:22:03,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:03,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:03,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:22:03,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:22:03,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:03,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:03,320 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:03,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:22:03,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:22:03,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:03,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:03,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:03,326 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:03,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2905702, now seen corresponding path program 1 times [2025-04-26 16:22:03,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:03,326 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728768131] [2025-04-26 16:22:03,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:03,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:03,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:03,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:03,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:03,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:03,337 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:03,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:03,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:03,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:03,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:03,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:03,397 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:03,397 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:03,397 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:03,397 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:03,397 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:22:03,397 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:03,397 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:03,397 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:03,397 INFO L132 ssoRankerPreferences]: Filename of dumped script: unroll-cond-4.wvr.bpl_petrified1_Iteration2_Lasso [2025-04-26 16:22:03,397 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:03,397 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:03,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:03,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:03,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:03,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:03,453 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:03,457 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:03,461 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:03,536 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:03,537 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:03,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:03,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:03,541 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 16:22:03,542 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 16:22:03,542 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 16:22:03,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:03,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:03,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:03,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:03,555 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:22:03,555 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:22:03,560 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:03,567 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 16:22:03,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:03,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:03,577 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 16:22:03,579 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 16:22:03,581 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 16:22:03,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:03,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:03,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:03,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:03,593 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:22:03,594 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:22:03,597 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:03,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:03,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:03,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:03,606 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 16:22:03,608 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 16:22:03,610 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 16:22:03,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:03,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:03,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:03,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:03,627 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:22:03,627 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:22:03,643 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:03,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:03,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:03,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:03,652 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 16:22:03,655 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 16:22:03,657 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 16:22:03,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:03,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:03,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:03,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:03,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:03,674 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:03,674 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:03,679 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:03,684 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 16:22:03,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:03,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:03,715 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 16:22:03,729 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 16:22:03,730 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 16:22:03,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:03,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:03,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:03,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:03,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:03,745 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:03,745 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:03,749 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:03,758 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 16:22:03,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:03,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:03,760 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 16:22:03,761 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 16:22:03,762 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 16:22:03,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:03,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:03,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:03,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:03,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:03,774 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:03,774 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:03,775 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:03,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:22:03,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:03,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:03,782 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 16:22:03,783 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 16:22:03,784 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 16:22:03,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:03,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:03,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:03,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:03,796 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:22:03,796 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:22:03,801 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:03,809 INFO L436 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-04-26 16:22:03,810 INFO L437 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-04-26 16:22:03,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:03,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:03,812 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 16:22:03,814 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 16:22:03,815 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:03,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:03,832 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 16:22:03,832 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:03,832 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, i2) = 1*n - 1*i2 Supporting invariants [] [2025-04-26 16:22:03,839 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 16:22:03,839 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:03,851 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:03,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:03,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:03,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:03,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:03,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:03,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:03,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:22:03,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:22:03,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:03,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:03,869 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:03,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:03,870 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 16:22:03,870 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:22:03,870 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 26 transitions. cyclomatic complexity: 20 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (in total 4), 2 states have internal predecessors, (4), 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 16:22:03,890 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 26 transitions. cyclomatic complexity: 20. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (in total 4), 2 states have internal predecessors, (4), 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 26 states and 52 transitions. Complement of second has 4 states. [2025-04-26 16:22:03,891 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:22:03,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (in total 4), 2 states have internal predecessors, (4), 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 16:22:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2025-04-26 16:22:03,892 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 1 letters. [2025-04-26 16:22:03,892 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:03,892 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 4 letters. Loop has 1 letters. [2025-04-26 16:22:03,892 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:03,892 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:22:03,892 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:03,893 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 52 transitions. [2025-04-26 16:22:03,893 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:22:03,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2025-04-26 16:22:03,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:22:03,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:22:03,894 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:22:03,894 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:22:03,894 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:22:03,894 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:22:03,894 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:22:03,894 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:22:03,894 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:22:03,894 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:22:03,894 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:22:03,901 INFO L201 PluginConnector]: Adding new model unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:22:03 BoogieIcfgContainer [2025-04-26 16:22:03,901 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:22:03,902 INFO L158 Benchmark]: Toolchain (without parser) took 1708.01ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 86.0MB in the beginning and 64.5MB in the end (delta: 21.5MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. [2025-04-26 16:22:03,902 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.88ms. Allocated memory is still 155.2MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:03,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.95ms. Allocated memory is still 155.2MB. Free memory was 86.0MB in the beginning and 84.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:03,902 INFO L158 Benchmark]: Boogie Preprocessor took 23.28ms. Allocated memory is still 155.2MB. Free memory was 84.1MB in the beginning and 83.2MB in the end (delta: 943.3kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:22:03,902 INFO L158 Benchmark]: RCFGBuilder took 234.30ms. Allocated memory is still 155.2MB. Free memory was 83.1MB in the beginning and 70.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 16:22:03,902 INFO L158 Benchmark]: BuchiAutomizer took 1413.80ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 70.3MB in the beginning and 64.5MB in the end (delta: 5.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:03,903 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 0.88ms. Allocated memory is still 155.2MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.95ms. Allocated memory is still 155.2MB. Free memory was 86.0MB in the beginning and 84.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 23.28ms. Allocated memory is still 155.2MB. Free memory was 84.1MB in the beginning and 83.2MB in the end (delta: 943.3kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 234.30ms. Allocated memory is still 155.2MB. Free memory was 83.1MB in the beginning and 70.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 1413.80ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 70.3MB in the beginning and 64.5MB in the end (delta: 5.8MB). 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, 2 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, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 118ms VariablesStem: 1 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s 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 * i1 and consists of 4 locations. One deterministic module has affine ranking function -1 * i2 + n and consists of 3 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:22:03,914 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...