/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:22:49,451 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:22:49,532 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:22:49,563 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:22:49,563 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:22:49,564 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:22:49,566 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:22:49,566 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:22:49,567 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:22:49,570 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:22:49,570 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:22:49,571 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:22:49,571 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:22:49,572 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:22:49,572 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:22:49,572 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:22:49,573 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:22:49,573 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:22:49,573 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:22:49,573 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:22:49,573 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:22:49,574 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:22:49,574 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:22:49,574 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:22:49,575 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:22:49,575 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:22:49,575 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:22:49,575 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:22:49,575 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:22:49,576 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:22:49,577 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:22:49,577 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:22:49,577 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:22:49,578 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:22:49,579 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:22:49,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:22:49,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:22:49,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:22:49,851 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:22:49,852 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:22:49,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-subst.wvr.bpl [2023-10-12 17:22:49,854 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/array-int-subst.wvr.bpl' [2023-10-12 17:22:49,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:22:49,895 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:22:49,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:49,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:22:49,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:22:49,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/1) ... [2023-10-12 17:22:49,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/1) ... [2023-10-12 17:22:49,928 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:22:49,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:49,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:22:49,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:22:49,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:22:49,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/1) ... [2023-10-12 17:22:49,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/1) ... [2023-10-12 17:22:49,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/1) ... [2023-10-12 17:22:49,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/1) ... [2023-10-12 17:22:49,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/1) ... [2023-10-12 17:22:49,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/1) ... [2023-10-12 17:22:49,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/1) ... [2023-10-12 17:22:49,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/1) ... [2023-10-12 17:22:49,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:22:49,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:22:49,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:22:49,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:22:49,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/1) ... [2023-10-12 17:22:49,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:49,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:49,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:50,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:22:50,036 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:22:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:22:50,036 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:22:50,037 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:22:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:22:50,037 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:22:50,037 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:22:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:22:50,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:22:50,038 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:22:50,038 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:22:50,038 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:22:50,039 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:22:50,093 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:22:50,095 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:22:50,209 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:22:50,249 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:22:50,250 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-10-12 17:22:50,250 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2023-10-12 17:22:50,251 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2023-10-12 17:22:50,251 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2023-10-12 17:22:50,253 INFO L201 PluginConnector]: Adding new model array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:50 BoogieIcfgContainer [2023-10-12 17:22:50,253 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:22:50,254 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:22:50,254 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:22:50,257 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:22:50,258 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:50,258 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:49" (1/2) ... [2023-10-12 17:22:50,259 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e958333 and model type array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:22:50, skipping insertion in model container [2023-10-12 17:22:50,259 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:50,260 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:50" (2/2) ... [2023-10-12 17:22:50,261 INFO L332 chiAutomizerObserver]: Analyzing ICFG array-int-subst.wvr.bpl [2023-10-12 17:22:50,330 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:22:50,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 74 flow [2023-10-12 17:22:50,400 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2023-10-12 17:22:50,400 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:22:50,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 19 events. 3/19 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2023-10-12 17:22:50,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 25 transitions, 74 flow [2023-10-12 17:22:50,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 19 transitions, 56 flow [2023-10-12 17:22:50,430 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:22:50,442 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 19 transitions, 56 flow [2023-10-12 17:22:50,445 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 19 transitions, 56 flow [2023-10-12 17:22:50,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 19 transitions, 56 flow [2023-10-12 17:22:50,451 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2023-10-12 17:22:50,451 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:22:50,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 19 events. 3/19 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2023-10-12 17:22:50,452 INFO L119 LiptonReduction]: Number of co-enabled transitions 90 [2023-10-12 17:22:50,589 INFO L134 LiptonReduction]: Checked pairs total: 72 [2023-10-12 17:22:50,590 INFO L136 LiptonReduction]: Total number of compositions: 3 [2023-10-12 17:22:50,601 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:22:50,601 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:22:50,601 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:22:50,601 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:22:50,601 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:22:50,601 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:22:50,602 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:22:50,602 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:22:50,602 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 places, 17 transitions, 52 flow [2023-10-12 17:22:50,606 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:50,606 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:22:50,606 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:50,606 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:50,609 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:22:50,609 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 places, 17 transitions, 52 flow [2023-10-12 17:22:50,611 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:50,611 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:22:50,611 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:50,611 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:50,615 INFO L748 eck$LassoCheckResult]: Stem: 33#[$Ultimate##0]true [97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 35#[L85, $Ultimate##0]true [86] $Ultimate##0-->L34: Formula: (and (= v_len_1_9 (+ v_result_8_9 v_len_3_11)) (not v_break_7_9) (= v_i_6_12 0)) InVars {len_1=v_len_1_9, len_3=v_len_3_11} OutVars{result_8=v_result_8_9, i_6=v_i_6_12, len_1=v_len_1_9, len_3=v_len_3_11, break_7=v_break_7_9} AuxVars[] AssignedVars[result_8, i_6, break_7] 37#[L85, L34]true [2023-10-12 17:22:50,616 INFO L750 eck$LassoCheckResult]: Loop: 37#[L85, L34]true [88] L34-->L34: Formula: (let ((.cse2 (select v_array_2_11 v_i_6_20)) (.cse1 (select v_array_0_9 v_i_6_20))) (let ((.cse0 (= .cse2 .cse1))) (and (or (and (not .cse0) v_break_7_15) (and .cse0 (not v_break_7_15))) (= v_result_8_11 (ite .cse0 v_result_8_12 (+ .cse1 (* (- 1) .cse2)))) (= (+ v_i_6_21 1) v_i_6_20) (< v_i_6_21 v_len_1_17) (< v_i_6_21 v_len_3_23) (not v_break_7_16)))) InVars {result_8=v_result_8_12, i_6=v_i_6_21, len_1=v_len_1_17, array_2=v_array_2_11, len_3=v_len_3_23, break_7=v_break_7_16, array_0=v_array_0_9} OutVars{result_8=v_result_8_11, i_6=v_i_6_20, len_1=v_len_1_17, array_2=v_array_2_11, break_7=v_break_7_15, len_3=v_len_3_23, array_0=v_array_0_9} AuxVars[] AssignedVars[result_8, i_6, break_7] 37#[L85, L34]true [2023-10-12 17:22:50,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:50,621 INFO L85 PathProgramCache]: Analyzing trace with hash 4054, now seen corresponding path program 1 times [2023-10-12 17:22:50,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:50,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406121554] [2023-10-12 17:22:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:50,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:50,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:50,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:50,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:50,723 INFO L85 PathProgramCache]: Analyzing trace with hash 119, now seen corresponding path program 1 times [2023-10-12 17:22:50,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:50,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031265764] [2023-10-12 17:22:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:50,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:50,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:50,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:50,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:50,745 INFO L85 PathProgramCache]: Analyzing trace with hash 125762, now seen corresponding path program 1 times [2023-10-12 17:22:50,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:50,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562471097] [2023-10-12 17:22:50,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:50,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:50,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:50,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:51,002 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:51,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:51,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:51,003 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:51,003 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:51,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:51,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:51,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:51,004 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-int-subst.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:22:51,005 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:51,005 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:51,024 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:51,107 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:51,330 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:51,333 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:51,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:51,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:51,341 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:51,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:22:51,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:51,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:51,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:51,358 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-10-12 17:22:51,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:51,415 INFO L401 nArgumentSynthesizer]: We have 30 Motzkin's Theorem applications. [2023-10-12 17:22:51,423 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2023-10-12 17:22:51,516 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:51,574 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-10-12 17:22:51,574 INFO L444 ModelExtractionUtils]: 48 out of 57 variables were initially zero. Simplification set additionally 6 variables to zero. [2023-10-12 17:22:51,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:51,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:51,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:51,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:22:51,588 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:51,605 INFO L438 nArgumentSynthesizer]: Removed 6 redundant supporting invariants from a total of 6. [2023-10-12 17:22:51,606 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:51,606 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_3, i_6) = 1*len_3 - 1*i_6 Supporting invariants [] [2023-10-12 17:22:51,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:51,616 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:22:51,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:51,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:22:51,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:51,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:22:51,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:51,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:22:51,729 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 [2023-10-12 17:22:51,731 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:22:51,836 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 186 transitions. [2023-10-12 17:22:51,837 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:51,840 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:51,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:22:51,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:22:51,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2023-10-12 17:22:51,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:22:51,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:51,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:22:51,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:51,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:22:51,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:51,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 226 transitions, 1156 flow [2023-10-12 17:22:51,951 INFO L124 PetriNetUnfolderBase]: 373/537 cut-off events. [2023-10-12 17:22:51,952 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2023-10-12 17:22:51,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 537 events. 373/537 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1709 event pairs, 9 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 1045. Up to 169 conditions per place. [2023-10-12 17:22:51,955 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 36 places, 226 transitions, 1156 flow [2023-10-12 17:22:51,965 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 36 places, 226 transitions, 1156 flow [2023-10-12 17:22:51,965 INFO L430 stractBuchiCegarLoop]: Abstraction has has 36 places, 226 transitions, 1156 flow [2023-10-12 17:22:51,965 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:22:51,965 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 36 places, 226 transitions, 1156 flow [2023-10-12 17:22:51,979 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:51,979 INFO L124 PetriNetUnfolderBase]: 38/61 cut-off events. [2023-10-12 17:22:51,979 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-10-12 17:22:51,979 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:51,980 INFO L748 eck$LassoCheckResult]: Stem: 33#[$Ultimate##0]true [97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 35#[L85, $Ultimate##0]true [100] L85-->$Ultimate##0: 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] 83#[L86, $Ultimate##0, $Ultimate##0]true [89] $Ultimate##0-->L53: Formula: (and (not v_break_10_15) (= v_i_9_18 0) (= v_len_1_21 (+ v_result_11_15 v_len_5_23))) InVars {len_1=v_len_1_21, len_5=v_len_5_23} OutVars{len_5=v_len_5_23, result_11=v_result_11_15, break_10=v_break_10_15, len_1=v_len_1_21, i_9=v_i_9_18} AuxVars[] AssignedVars[result_11, break_10, i_9] 85#[L86, $Ultimate##0, L53]true [2023-10-12 17:22:51,981 INFO L750 eck$LassoCheckResult]: Loop: 85#[L86, $Ultimate##0, L53]true [90] L53-->L53: Formula: (let ((.cse2 (select v_array_0_11 v_i_9_14)) (.cse1 (select v_array_4_11 v_i_9_14))) (let ((.cse0 (= .cse2 .cse1))) (and (or (and (not .cse0) v_break_10_11) (and .cse0 (not v_break_10_11))) (= v_result_11_11 (ite .cse0 v_result_11_12 (+ (* (- 1) .cse1) .cse2))) (< v_i_9_15 v_len_1_19) (= (+ v_i_9_15 1) v_i_9_14) (< v_i_9_15 v_len_5_21) (not v_break_10_12)))) InVars {result_11=v_result_11_12, break_10=v_break_10_12, array_4=v_array_4_11, len_1=v_len_1_19, array_0=v_array_0_11, len_5=v_len_5_21, i_9=v_i_9_15} OutVars{result_11=v_result_11_11, break_10=v_break_10_11, array_4=v_array_4_11, len_1=v_len_1_19, array_0=v_array_0_11, len_5=v_len_5_21, i_9=v_i_9_14} AuxVars[] AssignedVars[result_11, break_10, i_9] 85#[L86, $Ultimate##0, L53]true [90] L53-->L53: Formula: (let ((.cse2 (select v_array_0_11 v_i_9_14)) (.cse1 (select v_array_4_11 v_i_9_14))) (let ((.cse0 (= .cse2 .cse1))) (and (or (and (not .cse0) v_break_10_11) (and .cse0 (not v_break_10_11))) (= v_result_11_11 (ite .cse0 v_result_11_12 (+ (* (- 1) .cse1) .cse2))) (< v_i_9_15 v_len_1_19) (= (+ v_i_9_15 1) v_i_9_14) (< v_i_9_15 v_len_5_21) (not v_break_10_12)))) InVars {result_11=v_result_11_12, break_10=v_break_10_12, array_4=v_array_4_11, len_1=v_len_1_19, array_0=v_array_0_11, len_5=v_len_5_21, i_9=v_i_9_15} OutVars{result_11=v_result_11_11, break_10=v_break_10_11, array_4=v_array_4_11, len_1=v_len_1_19, array_0=v_array_0_11, len_5=v_len_5_21, i_9=v_i_9_14} AuxVars[] AssignedVars[result_11, break_10, i_9] 85#[L86, $Ultimate##0, L53]true [2023-10-12 17:22:51,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:51,984 INFO L85 PathProgramCache]: Analyzing trace with hash 126197, now seen corresponding path program 1 times [2023-10-12 17:22:51,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:51,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605746678] [2023-10-12 17:22:51,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:51,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:51,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:51,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:51,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:51,998 INFO L85 PathProgramCache]: Analyzing trace with hash 3841, now seen corresponding path program 1 times [2023-10-12 17:22:51,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:51,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437682326] [2023-10-12 17:22:51,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:51,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:52,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:52,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:52,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:52,023 INFO L85 PathProgramCache]: Analyzing trace with hash 121278197, now seen corresponding path program 1 times [2023-10-12 17:22:52,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:52,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640435308] [2023-10-12 17:22:52,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:52,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:52,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:52,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:52,292 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:52,293 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:52,293 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:52,293 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:52,293 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:52,293 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:52,293 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:52,293 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:52,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-int-subst.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:22:52,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:52,293 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:52,295 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:52,298 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:52,364 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:52,368 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:52,577 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:52,578 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:52,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:52,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:52,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:52,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:52,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:22:52,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:52,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:52,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:52,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:52,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:52,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:52,685 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:52,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:52,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:52,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:52,702 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:52,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:22:52,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:52,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:52,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:22:52,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:52,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:52,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:52,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:22:52,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:22:52,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:52,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:52,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:52,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:52,744 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:52,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:22:52,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:52,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:52,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:52,760 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-10-12 17:22:52,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:52,790 INFO L401 nArgumentSynthesizer]: We have 30 Motzkin's Theorem applications. [2023-10-12 17:22:52,791 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2023-10-12 17:22:52,868 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:52,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:52,929 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:22:52,930 INFO L444 ModelExtractionUtils]: 46 out of 57 variables were initially zero. Simplification set additionally 8 variables to zero. [2023-10-12 17:22:52,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:52,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:52,933 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:52,941 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:52,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:22:52,962 INFO L438 nArgumentSynthesizer]: Removed 6 redundant supporting invariants from a total of 6. [2023-10-12 17:22:52,963 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:52,963 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_1, i_9) = 1*len_1 - 1*i_9 Supporting invariants [] [2023-10-12 17:22:52,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:52,981 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:52,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:53,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:22:53,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:53,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:22:53,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:53,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:22:53,027 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:22:53,027 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:22:53,097 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 186 transitions. [2023-10-12 17:22:53,097 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:53,112 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:22:53,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:22:53,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2023-10-12 17:22:53,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:22:53,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:53,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:22:53,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:53,115 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:22:53,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:53,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 3012 transitions, 21600 flow [2023-10-12 17:22:53,332 INFO L124 PetriNetUnfolderBase]: 1143/1591 cut-off events. [2023-10-12 17:22:53,333 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2023-10-12 17:22:53,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5104 conditions, 1591 events. 1143/1591 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6058 event pairs, 4 based on Foata normal form. 0/902 useless extension candidates. Maximal degree in co-relation 4670. Up to 549 conditions per place. [2023-10-12 17:22:53,337 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 48 places, 3012 transitions, 21600 flow [2023-10-12 17:22:53,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:53,414 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 48 places, 3012 transitions, 21600 flow [2023-10-12 17:22:53,414 INFO L430 stractBuchiCegarLoop]: Abstraction has has 48 places, 3012 transitions, 21600 flow [2023-10-12 17:22:53,415 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:22:53,415 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 48 places, 3012 transitions, 21600 flow [2023-10-12 17:22:53,441 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:53,441 INFO L124 PetriNetUnfolderBase]: 71/112 cut-off events. [2023-10-12 17:22:53,441 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-10-12 17:22:53,441 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:53,442 INFO L748 eck$LassoCheckResult]: Stem: 33#[$Ultimate##0]true [97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 35#[L85, $Ultimate##0]true [100] L85-->$Ultimate##0: 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] 83#[L86, $Ultimate##0, $Ultimate##0]true [103] L86-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 139#[$Ultimate##0, $Ultimate##0, L87, $Ultimate##0]true [92] $Ultimate##0-->L72: Formula: (and (= v_len_3_15 (+ v_result_14_11 v_len_5_15)) (= v_i_12_14 0) (not v_break_13_11)) InVars {len_5=v_len_5_15, len_3=v_len_3_15} OutVars{len_5=v_len_5_15, i_12=v_i_12_14, result_14=v_result_14_11, break_13=v_break_13_11, len_3=v_len_3_15} AuxVars[] AssignedVars[result_14, i_12, break_13] 141#[$Ultimate##0, $Ultimate##0, L87, L72]true [2023-10-12 17:22:53,442 INFO L750 eck$LassoCheckResult]: Loop: 141#[$Ultimate##0, $Ultimate##0, L87, L72]true [93] L72-->L72: Formula: (let ((.cse1 (select v_array_2_9 v_i_12_16)) (.cse2 (select v_array_4_9 v_i_12_16))) (let ((.cse0 (= .cse1 .cse2))) (and (or (and (not .cse0) v_break_13_13) (and (not v_break_13_13) .cse0)) (not v_break_13_14) (= (+ v_i_12_17 1) v_i_12_16) (< v_i_12_17 v_len_5_17) (= v_result_14_13 (ite .cse0 v_result_14_14 (+ .cse1 (* (- 1) .cse2)))) (< v_i_12_17 v_len_3_17)))) InVars {result_14=v_result_14_14, array_4=v_array_4_9, array_2=v_array_2_9, len_3=v_len_3_17, len_5=v_len_5_17, i_12=v_i_12_17, break_13=v_break_13_14} OutVars{result_14=v_result_14_13, array_4=v_array_4_9, array_2=v_array_2_9, len_3=v_len_3_17, len_5=v_len_5_17, i_12=v_i_12_16, break_13=v_break_13_13} AuxVars[] AssignedVars[result_14, i_12, break_13] 141#[$Ultimate##0, $Ultimate##0, L87, L72]true [93] L72-->L72: Formula: (let ((.cse1 (select v_array_2_9 v_i_12_16)) (.cse2 (select v_array_4_9 v_i_12_16))) (let ((.cse0 (= .cse1 .cse2))) (and (or (and (not .cse0) v_break_13_13) (and (not v_break_13_13) .cse0)) (not v_break_13_14) (= (+ v_i_12_17 1) v_i_12_16) (< v_i_12_17 v_len_5_17) (= v_result_14_13 (ite .cse0 v_result_14_14 (+ .cse1 (* (- 1) .cse2)))) (< v_i_12_17 v_len_3_17)))) InVars {result_14=v_result_14_14, array_4=v_array_4_9, array_2=v_array_2_9, len_3=v_len_3_17, len_5=v_len_5_17, i_12=v_i_12_17, break_13=v_break_13_14} OutVars{result_14=v_result_14_13, array_4=v_array_4_9, array_2=v_array_2_9, len_3=v_len_3_17, len_5=v_len_5_17, i_12=v_i_12_16, break_13=v_break_13_13} AuxVars[] AssignedVars[result_14, i_12, break_13] 141#[$Ultimate##0, $Ultimate##0, L87, L72]true [2023-10-12 17:22:53,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:53,443 INFO L85 PathProgramCache]: Analyzing trace with hash 3912633, now seen corresponding path program 1 times [2023-10-12 17:22:53,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:53,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314719266] [2023-10-12 17:22:53,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:53,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:53,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:53,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:53,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:53,453 INFO L85 PathProgramCache]: Analyzing trace with hash 3937, now seen corresponding path program 1 times [2023-10-12 17:22:53,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:53,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298939217] [2023-10-12 17:22:53,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:53,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:53,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:53,470 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:53,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:53,471 INFO L85 PathProgramCache]: Analyzing trace with hash -534924007, now seen corresponding path program 1 times [2023-10-12 17:22:53,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:53,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573096484] [2023-10-12 17:22:53,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:53,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:53,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:53,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:53,669 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:53,669 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:53,670 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:53,670 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:53,670 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:53,670 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:53,670 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:53,670 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:53,670 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-int-subst.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:22:53,670 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:53,670 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:53,673 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:53,675 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:53,677 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:53,680 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:53,682 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:53,685 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:53,687 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:22:53,959 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:53,960 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:53,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:53,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:53,963 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:53,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:22:53,969 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:53,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:53,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:53,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:53,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:53,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:53,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:53,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:54,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:54,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:54,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:54,004 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:54,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:22:54,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:54,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:54,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:54,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:54,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:54,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:54,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:54,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:54,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:54,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:54,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:54,046 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:54,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:54,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:54,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:54,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:54,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:54,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:54,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:54,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:22:54,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:54,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:54,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:54,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:54,090 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:54,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:22:54,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:54,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:54,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:54,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:54,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:54,103 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:54,103 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:54,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:54,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:54,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:54,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:54,128 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:54,140 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:54,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:54,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:54,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:54,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:54,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:54,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:54,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-10-12 17:22:54,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:54,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:54,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:54,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:54,173 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:54,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:54,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:54,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:54,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:54,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:54,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:54,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:54,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-10-12 17:22:54,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:54,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:54,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:54,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:54,232 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:54,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-10-12 17:22:54,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:22:54,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:54,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:54,247 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-10-12 17:22:54,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:54,284 INFO L401 nArgumentSynthesizer]: We have 30 Motzkin's Theorem applications. [2023-10-12 17:22:54,284 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2023-10-12 17:22:54,350 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:54,394 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2023-10-12 17:22:54,394 INFO L444 ModelExtractionUtils]: 48 out of 57 variables were initially zero. Simplification set additionally 6 variables to zero. [2023-10-12 17:22:54,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:54,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:54,397 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:54,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-10-12 17:22:54,401 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:54,436 INFO L438 nArgumentSynthesizer]: Removed 6 redundant supporting invariants from a total of 6. [2023-10-12 17:22:54,436 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:54,436 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_5, i_12) = 1*len_5 - 1*i_12 Supporting invariants [] [2023-10-12 17:22:54,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:54,448 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:22:54,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:54,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:22:54,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:54,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:22:54,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:54,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:22:54,497 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:22:54,497 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:22:54,570 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 186 transitions. [2023-10-12 17:22:54,570 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:54,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:54,826 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:22:54,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:22:54,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2023-10-12 17:22:54,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:22:54,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:54,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:22:54,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:54,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 4 letters. Loop has 4 letters. [2023-10-12 17:22:54,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:54,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 40200 transitions, 370992 flow [2023-10-12 17:23:00,046 INFO L124 PetriNetUnfolderBase]: 2969/4104 cut-off events. [2023-10-12 17:23:00,047 INFO L125 PetriNetUnfolderBase]: For 839/839 co-relation queries the response was YES. [2023-10-12 17:23:00,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17081 conditions, 4104 events. 2969/4104 cut-off events. For 839/839 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 18465 event pairs, 11 based on Foata normal form. 0/2173 useless extension candidates. Maximal degree in co-relation 15709. Up to 1480 conditions per place. [2023-10-12 17:23:00,052 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 60 places, 40200 transitions, 370992 flow [2023-10-12 17:23:00,493 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 60 places, 40200 transitions, 370992 flow [2023-10-12 17:23:00,493 INFO L430 stractBuchiCegarLoop]: Abstraction has has 60 places, 40200 transitions, 370992 flow [2023-10-12 17:23:00,493 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:23:00,493 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 places, 40200 transitions, 370992 flow [2023-10-12 17:23:06,982 INFO L124 PetriNetUnfolderBase]: 2969/4104 cut-off events. [2023-10-12 17:23:06,982 INFO L125 PetriNetUnfolderBase]: For 839/839 co-relation queries the response was YES. [2023-10-12 17:23:06,982 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:23:06,987 INFO L201 PluginConnector]: Adding new model array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:23:06 BoogieIcfgContainer [2023-10-12 17:23:06,987 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:23:06,988 INFO L158 Benchmark]: Toolchain (without parser) took 17092.49ms. Allocated memory was 175.1MB in the beginning and 782.2MB in the end (delta: 607.1MB). Free memory was 133.2MB in the beginning and 501.5MB in the end (delta: -368.4MB). Peak memory consumption was 543.0MB. Max. memory is 8.0GB. [2023-10-12 17:23:06,988 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.28ms. Allocated memory is still 175.1MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:23:06,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.82ms. Allocated memory is still 175.1MB. Free memory was 133.0MB in the beginning and 131.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:23:06,989 INFO L158 Benchmark]: Boogie Preprocessor took 29.11ms. Allocated memory is still 175.1MB. Free memory was 131.6MB in the beginning and 130.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:23:06,989 INFO L158 Benchmark]: RCFGBuilder took 293.09ms. Allocated memory is still 175.1MB. Free memory was 130.3MB in the beginning and 116.8MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-10-12 17:23:06,990 INFO L158 Benchmark]: BuchiAutomizer took 16733.15ms. Allocated memory was 175.1MB in the beginning and 782.2MB in the end (delta: 607.1MB). Free memory was 116.8MB in the beginning and 501.5MB in the end (delta: -384.8MB). Peak memory consumption was 527.3MB. Max. memory is 8.0GB. [2023-10-12 17:23:06,991 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 0.28ms. Allocated memory is still 175.1MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.82ms. Allocated memory is still 175.1MB. Free memory was 133.0MB in the beginning and 131.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 29.11ms. Allocated memory is still 175.1MB. Free memory was 131.6MB in the beginning and 130.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 293.09ms. Allocated memory is still 175.1MB. Free memory was 130.3MB in the beginning and 116.8MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 16733.15ms. Allocated memory was 175.1MB in the beginning and 782.2MB in the end (delta: 607.1MB). Free memory was 116.8MB in the beginning and 501.5MB in the end (delta: -384.8MB). Peak memory consumption was 527.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function len_3 + -1 * i_6 and consists of 4 locations. One deterministic module has affine ranking function -1 * i_9 + len_1 and consists of 4 locations. One deterministic module has affine ranking function -1 * i_12 + len_5 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 16.6s and 4 iterations. TraceHistogramMax:0. Analysis of lassos took 3.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 173 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 54 mSDtfsCounter, 173 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital96 mio100 ax100 hnf100 lsp101 ukn60 mio100 lsp96 div100 bol108 ite100 ukn100 eq168 hnf97 smp100 dnf242 smp55 tf100 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 271ms VariablesStem: 5 VariablesLoop: 10 DisjunctsStem: 1 DisjunctsLoop: 3 SupportingInvariants: 6 MotzkinApplications: 30 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 26 PlacesBefore, 24 PlacesAfterwards, 19 TransitionsBefore, 17 TransitionsAfterwards, 90 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 72, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 24, unknown conditional: 0, unknown unconditional: 24] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:23:07,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...