/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_AUTOMATON -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 17:13:00,483 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:13:00,529 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 17:13:00,545 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:13:00,545 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:13:00,545 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:13:00,546 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:13:00,547 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:13:00,547 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:13:00,547 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:13:00,547 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:13:00,548 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:13:00,548 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:13:00,548 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:13:00,548 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:13:00,549 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:13:00,549 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:13:00,549 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:13:00,549 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:13:00,550 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:13:00,550 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:13:00,553 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:13:00,555 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:13:00,555 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:13:00,558 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:13:00,558 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:13:00,558 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:13:00,559 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:13:00,559 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:13:00,559 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:13:00,560 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:13:00,560 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:13:00,560 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:13:00,562 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:13:00,562 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:13:00,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:13:00,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:13:00,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:13:00,741 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:13:00,742 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:13:00,743 INFO L431 ainManager$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 17:13:00,743 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 17:13:00,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:13:00,773 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:13:00,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:00,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:13:00,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:13:00,783 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 05:13:00" (1/1) ... [2023-10-12 17:13:00,789 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 05:13:00" (1/1) ... [2023-10-12 17:13:00,793 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:13:00,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:00,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:13:00,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:13:00,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:13:00,802 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 05:13:00" (1/1) ... [2023-10-12 17:13:00,802 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 05:13:00" (1/1) ... [2023-10-12 17:13:00,809 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 05:13:00" (1/1) ... [2023-10-12 17:13:00,809 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 05:13:00" (1/1) ... [2023-10-12 17:13:00,817 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 05:13:00" (1/1) ... [2023-10-12 17:13:00,820 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 05:13:00" (1/1) ... [2023-10-12 17:13:00,824 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 05:13:00" (1/1) ... [2023-10-12 17:13:00,825 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 05:13:00" (1/1) ... [2023-10-12 17:13:00,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:13:00,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:13:00,827 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:13:00,827 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:13:00,828 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 05:13:00" (1/1) ... [2023-10-12 17:13:00,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:00,902 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 17:13:00,905 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 17:13:00,932 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:13:00,932 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:13:00,932 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:13:00,932 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:13:00,932 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:13:00,932 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:13:00,932 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:13:00,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:13:00,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:13:00,933 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:13:00,933 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:13:00,933 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:13:00,934 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 17:13:00,972 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:13:00,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:13:01,085 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:13:01,131 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:13:01,131 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-10-12 17:13:01,132 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2023-10-12 17:13:01,132 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2023-10-12 17:13:01,132 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2023-10-12 17:13:01,134 INFO L201 PluginConnector]: Adding new model array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:13:01 BoogieIcfgContainer [2023-10-12 17:13:01,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:13:01,134 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:13:01,134 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:13:01,137 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:13:01,138 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:01,138 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 05:13:00" (1/2) ... [2023-10-12 17:13:01,141 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e72ce74 and model type array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:13:01, skipping insertion in model container [2023-10-12 17:13:01,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:01,141 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 05:13:01" (2/2) ... [2023-10-12 17:13:01,142 INFO L332 chiAutomizerObserver]: Analyzing ICFG array-int-subst.wvr.bpl [2023-10-12 17:13:01,191 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:13:01,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 74 flow [2023-10-12 17:13:01,245 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2023-10-12 17:13:01,245 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:13:01,248 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 17:13:01,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 25 transitions, 74 flow [2023-10-12 17:13:01,250 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 19 transitions, 56 flow [2023-10-12 17:13:01,252 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:13:01,262 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 19 transitions, 56 flow [2023-10-12 17:13:01,263 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 19 transitions, 56 flow [2023-10-12 17:13:01,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 19 transitions, 56 flow [2023-10-12 17:13:01,268 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2023-10-12 17:13:01,269 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:13:01,269 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 17:13:01,269 INFO L119 LiptonReduction]: Number of co-enabled transitions 90 [2023-10-12 17:13:01,389 INFO L134 LiptonReduction]: Checked pairs total: 72 [2023-10-12 17:13:01,389 INFO L136 LiptonReduction]: Total number of compositions: 3 [2023-10-12 17:13:01,402 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:13:01,403 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:13:01,403 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:13:01,403 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:13:01,403 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:13:01,403 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:13:01,403 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:13:01,403 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:13:01,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:13:01,435 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 31 [2023-10-12 17:13:01,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:01,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:01,439 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:13:01,439 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:01,440 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:13:01,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 54 states, but on-demand construction may add more states [2023-10-12 17:13:01,444 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 31 [2023-10-12 17:13:01,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:01,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:01,444 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:13:01,445 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:01,448 INFO L748 eck$LassoCheckResult]: Stem: 32#[$Ultimate##0]don't care [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]don't care [86] $Ultimate##0-->L34: Formula: (and (= v_len_1_9 (+ v_result_8_9 v_len_3_11)) (not v_break_7_9) (= v_i_6_12 0)) InVars {len_1=v_len_1_9, len_3=v_len_3_11} OutVars{result_8=v_result_8_9, i_6=v_i_6_12, len_1=v_len_1_9, len_3=v_len_3_11, break_7=v_break_7_9} AuxVars[] AssignedVars[result_8, i_6, break_7] 39#[L85, L34]don't care [2023-10-12 17:13:01,448 INFO L750 eck$LassoCheckResult]: Loop: 39#[L85, L34]don't care [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] 39#[L85, L34]don't care [2023-10-12 17:13:01,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:01,452 INFO L85 PathProgramCache]: Analyzing trace with hash 4054, now seen corresponding path program 1 times [2023-10-12 17:13:01,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:01,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000716345] [2023-10-12 17:13:01,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:01,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:01,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:01,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:01,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:01,549 INFO L85 PathProgramCache]: Analyzing trace with hash 119, now seen corresponding path program 1 times [2023-10-12 17:13:01,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:01,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952677421] [2023-10-12 17:13:01,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:01,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:01,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:01,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:01,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:01,566 INFO L85 PathProgramCache]: Analyzing trace with hash 125762, now seen corresponding path program 1 times [2023-10-12 17:13:01,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:01,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990462595] [2023-10-12 17:13:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:01,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:01,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:01,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:01,756 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:01,757 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:01,757 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:01,757 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:01,757 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:01,757 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:01,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:01,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:01,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-int-subst.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:13:01,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:01,758 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:01,772 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 17:13:01,844 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 17:13:02,014 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:02,017 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:02,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:02,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:02,021 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 17:13:02,026 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 17:13:02,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:02,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:02,033 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-10-12 17:13:02,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:02,036 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 17:13:02,080 INFO L401 nArgumentSynthesizer]: We have 30 Motzkin's Theorem applications. [2023-10-12 17:13:02,080 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2023-10-12 17:13:02,138 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:02,183 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-10-12 17:13:02,183 INFO L444 ModelExtractionUtils]: 48 out of 57 variables were initially zero. Simplification set additionally 6 variables to zero. [2023-10-12 17:13:02,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:02,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:02,187 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 17:13:02,188 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 17:13:02,227 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:02,254 INFO L438 nArgumentSynthesizer]: Removed 6 redundant supporting invariants from a total of 6. [2023-10-12 17:13:02,255 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:02,255 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 17:13:02,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:13:02,262 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:02,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:02,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:02,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:02,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:02,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:02,309 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 17:13:02,331 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 17:13:02,333 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 54 states, but on-demand construction may add more states Second 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 17:13:02,414 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 54 states, but on-demand construction may add more states. Second 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 142 states and 488 transitions. Complement of second has 5 states. [2023-10-12 17:13:02,415 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 17:13:02,421 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 17:13:02,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2023-10-12 17:13:02,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:13:02,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:02,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:02,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:02,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:13:02,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:02,428 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 488 transitions. [2023-10-12 17:13:02,439 INFO L131 ngComponentsAnalysis]: Automaton has 24 accepting balls. 24 [2023-10-12 17:13:02,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 102 states and 353 transitions. [2023-10-12 17:13:02,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2023-10-12 17:13:02,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2023-10-12 17:13:02,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 353 transitions. [2023-10-12 17:13:02,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:02,448 INFO L219 hiAutomatonCegarLoop]: Abstraction has 102 states and 353 transitions. [2023-10-12 17:13:02,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 353 transitions. [2023-10-12 17:13:02,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 81. [2023-10-12 17:13:02,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 81 states have (on average 3.617283950617284) internal successors, (293), 80 states have internal predecessors, (293), 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 17:13:02,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 293 transitions. [2023-10-12 17:13:02,477 INFO L241 hiAutomatonCegarLoop]: Abstraction has 81 states and 293 transitions. [2023-10-12 17:13:02,478 INFO L430 stractBuchiCegarLoop]: Abstraction has 81 states and 293 transitions. [2023-10-12 17:13:02,478 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:13:02,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 293 transitions. [2023-10-12 17:13:02,482 INFO L131 ngComponentsAnalysis]: Automaton has 24 accepting balls. 24 [2023-10-12 17:13:02,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:02,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:02,482 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:13:02,482 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:02,484 INFO L748 eck$LassoCheckResult]: Stem: 467#[$Ultimate##0]don't care [97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 319#[L85, $Ultimate##0]don't care [100] L85-->$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] 321#[L86, $Ultimate##0, $Ultimate##0]don't care [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] 419#[L53, L86, $Ultimate##0]don't care [2023-10-12 17:13:02,485 INFO L750 eck$LassoCheckResult]: Loop: 419#[L53, L86, $Ultimate##0]don't care [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] 419#[L53, L86, $Ultimate##0]don't care [2023-10-12 17:13:02,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:02,489 INFO L85 PathProgramCache]: Analyzing trace with hash 126197, now seen corresponding path program 1 times [2023-10-12 17:13:02,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:02,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964657831] [2023-10-12 17:13:02,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:02,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:02,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:02,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:02,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash 121, now seen corresponding path program 1 times [2023-10-12 17:13:02,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:02,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553136610] [2023-10-12 17:13:02,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:02,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:02,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:02,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:02,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:02,513 INFO L85 PathProgramCache]: Analyzing trace with hash 3912197, now seen corresponding path program 1 times [2023-10-12 17:13:02,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:02,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858336778] [2023-10-12 17:13:02,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:02,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:02,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:02,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:02,680 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:02,680 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:02,680 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:02,680 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:02,680 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:02,680 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:02,680 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:02,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:02,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-int-subst.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:13:02,681 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:02,681 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:02,682 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 17:13:02,686 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 17:13:02,689 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 17:13:02,740 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 17:13:02,743 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 17:13:02,906 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:02,906 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:02,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:02,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:02,907 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 17:13:02,914 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 17:13:02,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:02,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:02,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:02,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:02,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:02,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:02,922 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 17:13:02,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:02,944 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 17:13:02,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:02,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:02,957 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 17:13:02,963 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 17:13:02,964 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 17:13:02,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:02,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:02,969 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-10-12 17:13:02,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:02,993 INFO L401 nArgumentSynthesizer]: We have 30 Motzkin's Theorem applications. [2023-10-12 17:13:02,993 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2023-10-12 17:13:03,045 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:03,075 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-10-12 17:13:03,076 INFO L444 ModelExtractionUtils]: 49 out of 57 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-10-12 17:13:03,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:03,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:03,079 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 17:13:03,081 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 17:13:03,082 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:03,094 INFO L438 nArgumentSynthesizer]: Removed 6 redundant supporting invariants from a total of 6. [2023-10-12 17:13:03,094 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:03,094 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 17:13:03,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-10-12 17:13:03,121 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:03,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:03,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:03,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:03,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:03,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:03,143 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 17:13:03,144 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:13:03,144 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81 states and 293 transitions. cyclomatic complexity: 248 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 17:13:03,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81 states and 293 transitions. cyclomatic complexity: 248. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 223 states and 841 transitions. Complement of second has 4 states. [2023-10-12 17:13:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:13:03,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 17:13:03,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2023-10-12 17:13:03,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:03,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:03,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:03,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:03,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:13:03,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:03,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 841 transitions. [2023-10-12 17:13:03,193 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 13 [2023-10-12 17:13:03,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 147 states and 548 transitions. [2023-10-12 17:13:03,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2023-10-12 17:13:03,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2023-10-12 17:13:03,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 548 transitions. [2023-10-12 17:13:03,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:03,198 INFO L219 hiAutomatonCegarLoop]: Abstraction has 147 states and 548 transitions. [2023-10-12 17:13:03,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 548 transitions. [2023-10-12 17:13:03,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 115. [2023-10-12 17:13:03,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 115 states have (on average 3.8434782608695652) internal successors, (442), 114 states have internal predecessors, (442), 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 17:13:03,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 442 transitions. [2023-10-12 17:13:03,212 INFO L241 hiAutomatonCegarLoop]: Abstraction has 115 states and 442 transitions. [2023-10-12 17:13:03,212 INFO L430 stractBuchiCegarLoop]: Abstraction has 115 states and 442 transitions. [2023-10-12 17:13:03,212 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:13:03,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 115 states and 442 transitions. [2023-10-12 17:13:03,213 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 13 [2023-10-12 17:13:03,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:03,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:03,214 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:13:03,214 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:03,215 INFO L748 eck$LassoCheckResult]: Stem: 922#[$Ultimate##0]don't care [97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 732#[L85, $Ultimate##0]don't care [100] L85-->$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] 734#[L86, $Ultimate##0, $Ultimate##0]don't care [103] L86-->$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] 888#[$Ultimate##0, L87, $Ultimate##0, $Ultimate##0]don't care [92] $Ultimate##0-->L72: Formula: (and (= v_len_3_15 (+ v_result_14_11 v_len_5_15)) (= v_i_12_14 0) (not v_break_13_11)) InVars {len_5=v_len_5_15, len_3=v_len_3_15} OutVars{len_5=v_len_5_15, i_12=v_i_12_14, result_14=v_result_14_11, break_13=v_break_13_11, len_3=v_len_3_15} AuxVars[] AssignedVars[result_14, i_12, break_13] 790#[$Ultimate##0, L72, L87, $Ultimate##0]don't care [2023-10-12 17:13:03,218 INFO L750 eck$LassoCheckResult]: Loop: 790#[$Ultimate##0, L72, L87, $Ultimate##0]don't care [93] L72-->L72: Formula: (let ((.cse1 (select v_array_2_9 v_i_12_16)) (.cse2 (select v_array_4_9 v_i_12_16))) (let ((.cse0 (= .cse1 .cse2))) (and (or (and (not .cse0) v_break_13_13) (and (not v_break_13_13) .cse0)) (not v_break_13_14) (= (+ v_i_12_17 1) v_i_12_16) (< v_i_12_17 v_len_5_17) (= v_result_14_13 (ite .cse0 v_result_14_14 (+ .cse1 (* (- 1) .cse2)))) (< v_i_12_17 v_len_3_17)))) InVars {result_14=v_result_14_14, array_4=v_array_4_9, array_2=v_array_2_9, len_3=v_len_3_17, len_5=v_len_5_17, i_12=v_i_12_17, break_13=v_break_13_14} OutVars{result_14=v_result_14_13, array_4=v_array_4_9, array_2=v_array_2_9, len_3=v_len_3_17, len_5=v_len_5_17, i_12=v_i_12_16, break_13=v_break_13_13} AuxVars[] AssignedVars[result_14, i_12, break_13] 790#[$Ultimate##0, L72, L87, $Ultimate##0]don't care [2023-10-12 17:13:03,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:03,218 INFO L85 PathProgramCache]: Analyzing trace with hash 3912633, now seen corresponding path program 1 times [2023-10-12 17:13:03,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:03,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221938617] [2023-10-12 17:13:03,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:03,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:03,222 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:03,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:03,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:03,234 INFO L85 PathProgramCache]: Analyzing trace with hash 124, now seen corresponding path program 1 times [2023-10-12 17:13:03,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:03,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790101610] [2023-10-12 17:13:03,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:03,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:03,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:03,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:03,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:03,242 INFO L85 PathProgramCache]: Analyzing trace with hash 121291716, now seen corresponding path program 1 times [2023-10-12 17:13:03,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:03,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505264919] [2023-10-12 17:13:03,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:03,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:03,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:03,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:03,357 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:03,357 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:03,357 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:03,357 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:03,357 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:03,357 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:03,357 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:03,357 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:03,358 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-int-subst.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:13:03,358 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:03,358 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:03,360 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 17:13:03,363 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 17:13:03,365 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 17:13:03,367 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 17:13:03,370 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 17:13:03,415 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 17:13:03,417 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 17:13:03,582 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:03,582 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:03,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:03,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:03,583 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 17:13:03,595 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 17:13:03,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:03,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:03,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:03,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:03,603 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:03,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:03,607 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 17:13:03,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:03,621 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 17:13:03,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:03,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:03,626 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 17:13:03,628 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 17:13:03,629 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 17:13:03,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:03,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:03,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:03,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:03,636 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:03,636 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:03,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:03,667 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 17:13:03,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:03,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:03,668 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 17:13:03,683 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 17:13:03,684 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 17:13:03,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:03,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:03,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:03,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:03,691 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:03,691 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:03,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:03,714 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 17:13:03,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:03,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:03,716 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 17:13:03,728 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 17:13:03,728 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 17:13:03,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:03,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:03,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:03,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:03,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:03,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:03,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:03,762 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 17:13:03,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:03,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:03,763 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 17:13:03,771 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 17:13:03,771 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 17:13:03,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:03,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:03,777 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-10-12 17:13:03,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:03,800 INFO L401 nArgumentSynthesizer]: We have 30 Motzkin's Theorem applications. [2023-10-12 17:13:03,800 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2023-10-12 17:13:03,850 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:03,873 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:13:03,873 INFO L444 ModelExtractionUtils]: 48 out of 57 variables were initially zero. Simplification set additionally 6 variables to zero. [2023-10-12 17:13:03,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:03,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:03,887 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 17:13:03,895 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 17:13:03,895 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:03,927 INFO L438 nArgumentSynthesizer]: Removed 6 redundant supporting invariants from a total of 6. [2023-10-12 17:13:03,928 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:03,928 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_3, i_12) = 1*len_3 - 1*i_12 Supporting invariants [] [2023-10-12 17:13:03,945 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 17:13:03,945 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:03,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:03,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:03,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:03,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:03,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:03,966 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 17:13:03,966 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 17:13:03,966 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 115 states and 442 transitions. cyclomatic complexity: 367 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 17:13:03,997 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 115 states and 442 transitions. cyclomatic complexity: 367. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 231 states and 839 transitions. Complement of second has 4 states. [2023-10-12 17:13:03,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:13:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 17:13:03,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2023-10-12 17:13:03,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:03,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:03,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:13:03,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:03,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:13:03,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:03,998 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 839 transitions. [2023-10-12 17:13:04,001 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:04,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 0 states and 0 transitions. [2023-10-12 17:13:04,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:13:04,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:13:04,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:13:04,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:13:04,001 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:04,001 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:04,001 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:04,001 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:13:04,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:13:04,002 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:04,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:13:04,006 INFO L201 PluginConnector]: Adding new model array-int-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:13:04 BoogieIcfgContainer [2023-10-12 17:13:04,006 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:13:04,007 INFO L158 Benchmark]: Toolchain (without parser) took 3233.39ms. Allocated memory was 205.5MB in the beginning and 278.9MB in the end (delta: 73.4MB). Free memory was 158.5MB in the beginning and 126.7MB in the end (delta: 31.8MB). Peak memory consumption was 106.0MB. Max. memory is 8.0GB. [2023-10-12 17:13:04,007 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.17ms. Allocated memory is still 205.5MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:04,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.32ms. Allocated memory is still 205.5MB. Free memory was 158.5MB in the beginning and 156.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:13:04,008 INFO L158 Benchmark]: Boogie Preprocessor took 30.27ms. Allocated memory is still 205.5MB. Free memory was 156.9MB in the beginning and 155.9MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:13:04,008 INFO L158 Benchmark]: RCFGBuilder took 306.52ms. Allocated memory is still 205.5MB. Free memory was 155.8MB in the beginning and 176.8MB in the end (delta: -21.0MB). Peak memory consumption was 19.3MB. Max. memory is 8.0GB. [2023-10-12 17:13:04,008 INFO L158 Benchmark]: BuchiAutomizer took 2871.88ms. Allocated memory was 205.5MB in the beginning and 278.9MB in the end (delta: 73.4MB). Free memory was 176.7MB in the beginning and 126.7MB in the end (delta: 49.9MB). Peak memory consumption was 123.3MB. Max. memory is 8.0GB. [2023-10-12 17:13:04,009 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 0.17ms. Allocated memory is still 205.5MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.32ms. Allocated memory is still 205.5MB. Free memory was 158.5MB in the beginning and 156.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.27ms. Allocated memory is still 205.5MB. Free memory was 156.9MB in the beginning and 155.9MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 306.52ms. Allocated memory is still 205.5MB. Free memory was 155.8MB in the beginning and 176.8MB in the end (delta: -21.0MB). Peak memory consumption was 19.3MB. Max. memory is 8.0GB. * BuchiAutomizer took 2871.88ms. Allocated memory was 205.5MB in the beginning and 278.9MB in the end (delta: 73.4MB). Free memory was 176.7MB in the beginning and 126.7MB in the end (delta: 49.9MB). Peak memory consumption was 123.3MB. 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 3 locations. One deterministic module has affine ranking function -1 * i_12 + len_3 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 53 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital86 mio100 ax100 hnf100 lsp101 ukn62 mio100 lsp100 div100 bol109 ite100 ukn100 eq171 hnf97 smp100 dnf232 smp56 tf100 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 236ms 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: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 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 17:13:04,021 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 17:13:04,220 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 17:13:04,422 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...