/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs RABIN_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-dist.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:37:33,214 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:37:33,262 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 17:37:33,286 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:37:33,287 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:37:33,288 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:37:33,289 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:37:33,289 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:37:33,290 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:37:33,293 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:37:33,294 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:37:33,294 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:37:33,294 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:37:33,295 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:37:33,296 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:37:33,296 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:37:33,296 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:37:33,297 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:37:33,297 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:37:33,297 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:37:33,297 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:37:33,299 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:37:33,299 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:37:33,299 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:37:33,299 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:37:33,300 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:37:33,300 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:37:33,300 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:37:33,301 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:37:33,301 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:37:33,302 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:37:33,302 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:37:33,302 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:37:33,304 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:37:33,304 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:37:33,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:37:33,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:37:33,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:37:33,574 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:37:33,575 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:37:33,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-dist.wvr.bpl [2023-10-12 17:37:33,577 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-dist.wvr.bpl' [2023-10-12 17:37:33,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:37:33,606 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:37:33,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:37:33,608 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:37:33,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:37:33,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/1) ... [2023-10-12 17:37:33,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/1) ... [2023-10-12 17:37:33,632 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:37:33,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:37:33,634 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:37:33,636 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:37:33,636 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:37:33,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/1) ... [2023-10-12 17:37:33,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/1) ... [2023-10-12 17:37:33,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/1) ... [2023-10-12 17:37:33,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/1) ... [2023-10-12 17:37:33,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/1) ... [2023-10-12 17:37:33,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/1) ... [2023-10-12 17:37:33,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/1) ... [2023-10-12 17:37:33,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/1) ... [2023-10-12 17:37:33,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:37:33,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:37:33,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:37:33,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:37:33,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/1) ... [2023-10-12 17:37:33,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:33,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:33,695 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 17:37:33,707 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 17:37:33,732 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:37:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:37:33,736 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:37:33,736 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:37:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:37:33,737 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:37:33,737 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:37:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:37:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:37:33,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:37:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:37:33,738 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:37:33,739 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 17:37:33,783 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:37:33,785 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:37:33,915 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:37:33,929 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:37:33,930 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:37:33,931 INFO L201 PluginConnector]: Adding new model mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:37:33 BoogieIcfgContainer [2023-10-12 17:37:33,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:37:33,932 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:37:33,933 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:37:33,935 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:37:33,936 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:37:33,936 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:33" (1/2) ... [2023-10-12 17:37:33,937 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ee642d7 and model type mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:37:33, skipping insertion in model container [2023-10-12 17:37:33,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:37:33,937 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:37:33" (2/2) ... [2023-10-12 17:37:33,939 INFO L332 chiAutomizerObserver]: Analyzing ICFG mult-dist.wvr.bpl [2023-10-12 17:37:33,989 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:37:34,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 82 flow [2023-10-12 17:37:34,046 INFO L124 PetriNetUnfolderBase]: 3/23 cut-off events. [2023-10-12 17:37:34,047 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:37:34,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 23 events. 3/23 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2023-10-12 17:37:34,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 82 flow [2023-10-12 17:37:34,055 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 23 transitions, 64 flow [2023-10-12 17:37:34,058 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:37:34,071 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 23 transitions, 64 flow [2023-10-12 17:37:34,074 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 23 transitions, 64 flow [2023-10-12 17:37:34,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 23 transitions, 64 flow [2023-10-12 17:37:34,081 INFO L124 PetriNetUnfolderBase]: 3/23 cut-off events. [2023-10-12 17:37:34,082 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:37:34,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 23 events. 3/23 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2023-10-12 17:37:34,083 INFO L119 LiptonReduction]: Number of co-enabled transitions 144 [2023-10-12 17:37:34,234 INFO L134 LiptonReduction]: Checked pairs total: 106 [2023-10-12 17:37:34,234 INFO L136 LiptonReduction]: Total number of compositions: 9 [2023-10-12 17:37:34,245 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:37:34,245 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:37:34,245 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:37:34,246 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:37:34,246 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:37:34,246 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:37:34,246 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:37:34,246 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:37:34,247 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:37:34,250 ERROR L47 etriNetUnfolderRabin]: [1:1A:[54] $Ultimate##0-->L56: Formula: (and (= v_x_1_3 0) (= v_x_3_1 v_x_1_3) (= v_i_1_5 v_x_1_3) (<= 0 v_b_3) (= v_i_2_5 v_x_1_3) (= v_i_3_1 v_x_1_3) (= v_x_2_3 v_x_1_3) (<= 0 v_a_3) (<= 0 v_c_3)) InVars {x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} OutVars{x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} AuxVars[] AssignedVars[][5], 2:2A:[75] L56-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][0]][3:3A:[90] L23-1-->L23-1: Formula: (and (= v_i_1_12 (+ v_i_1_13 1)) (< v_i_1_13 v_a_8) (= (+ v_c_13 v_x_1_14) v_x_1_13)) InVars {x_1=v_x_1_14, a=v_a_8, i_1=v_i_1_13, c=v_c_13} OutVars{x_1=v_x_1_13, a=v_a_8, i_1=v_i_1_12, c=v_c_13} AuxVars[] AssignedVars[x_1, i_1][10]] [2023-10-12 17:37:34,252 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:34,252 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:37:34,252 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:37:34,252 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:34,255 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:37:34,255 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:37:34,257 ERROR L47 etriNetUnfolderRabin]: [1:1A:[54] $Ultimate##0-->L56: Formula: (and (= v_x_1_3 0) (= v_x_3_1 v_x_1_3) (= v_i_1_5 v_x_1_3) (<= 0 v_b_3) (= v_i_2_5 v_x_1_3) (= v_i_3_1 v_x_1_3) (= v_x_2_3 v_x_1_3) (<= 0 v_a_3) (<= 0 v_c_3)) InVars {x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} OutVars{x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} AuxVars[] AssignedVars[][5], 2:2A:[75] L56-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][0]][3:3A:[90] L23-1-->L23-1: Formula: (and (= v_i_1_12 (+ v_i_1_13 1)) (< v_i_1_13 v_a_8) (= (+ v_c_13 v_x_1_14) v_x_1_13)) InVars {x_1=v_x_1_14, a=v_a_8, i_1=v_i_1_13, c=v_c_13} OutVars{x_1=v_x_1_13, a=v_a_8, i_1=v_i_1_12, c=v_c_13} AuxVars[] AssignedVars[x_1, i_1][10]] [2023-10-12 17:37:34,257 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:34,257 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:37:34,257 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:37:34,257 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:34,261 INFO L748 eck$LassoCheckResult]: Stem: 37#[$Ultimate##0]true [54] $Ultimate##0-->L56: Formula: (and (= v_x_1_3 0) (= v_x_3_1 v_x_1_3) (= v_i_1_5 v_x_1_3) (<= 0 v_b_3) (= v_i_2_5 v_x_1_3) (= v_i_3_1 v_x_1_3) (= v_x_2_3 v_x_1_3) (<= 0 v_a_3) (<= 0 v_c_3)) InVars {x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} OutVars{x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} AuxVars[] AssignedVars[] 39#[L56]true [75] L56-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 41#[L23-1, L56-1]true [2023-10-12 17:37:34,261 INFO L750 eck$LassoCheckResult]: Loop: 41#[L23-1, L56-1]true [90] L23-1-->L23-1: Formula: (and (= v_i_1_12 (+ v_i_1_13 1)) (< v_i_1_13 v_a_8) (= (+ v_c_13 v_x_1_14) v_x_1_13)) InVars {x_1=v_x_1_14, a=v_a_8, i_1=v_i_1_13, c=v_c_13} OutVars{x_1=v_x_1_13, a=v_a_8, i_1=v_i_1_12, c=v_c_13} AuxVars[] AssignedVars[x_1, i_1] 41#[L23-1, L56-1]true [2023-10-12 17:37:34,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:34,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2710, now seen corresponding path program 1 times [2023-10-12 17:37:34,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:34,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684173253] [2023-10-12 17:37:34,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:34,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:34,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:34,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:34,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:34,354 INFO L85 PathProgramCache]: Analyzing trace with hash 121, now seen corresponding path program 1 times [2023-10-12 17:37:34,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:34,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446093260] [2023-10-12 17:37:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:34,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:34,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:34,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:34,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:34,374 INFO L85 PathProgramCache]: Analyzing trace with hash 84100, now seen corresponding path program 1 times [2023-10-12 17:37:34,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:34,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106434747] [2023-10-12 17:37:34,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:34,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:34,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:34,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:34,487 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:34,488 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:34,488 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:34,488 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:34,488 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:37:34,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:34,489 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:34,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:34,489 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:37:34,489 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:34,489 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:34,501 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 17:37:34,510 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 17:37:34,548 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:34,548 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:37:34,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:34,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:34,553 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 17:37:34,554 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 17:37:34,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:34,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:34,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:37:34,567 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x_1=0, c=0} Honda state: {x_1=0, c=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:37:34,571 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 17:37:34,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:34,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:34,573 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 17:37:34,574 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 17:37:34,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:34,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:34,619 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 17:37:34,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:34,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:34,621 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 17:37:34,622 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 17:37:34,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:37:34,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:34,729 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:37:34,733 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 17:37:34,733 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:34,733 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:34,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:34,733 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:34,733 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:37:34,734 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:34,734 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:34,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:34,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:37:34,734 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:34,734 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:34,735 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 17:37:34,747 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 17:37:34,786 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:34,790 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:37:34,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:34,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:34,900 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 17:37:34,902 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 17:37:34,904 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 17:37:34,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:34,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:37:34,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:34,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:34,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:34,914 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:37:34,914 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:37:34,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:37:34,924 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 17:37:34,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:34,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:34,926 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 17:37:34,927 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 17:37:34,929 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 17:37:34,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:34,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:37:34,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:34,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:34,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:34,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:37:34,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:37:34,948 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:37:34,952 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:37:34,953 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:37:34,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:34,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:34,961 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 17:37:35,007 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 17:37:35,008 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:37:35,008 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:37:35,009 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:37:35,009 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(a, i_1) = 1*a - 1*i_1 Supporting invariants [] [2023-10-12 17:37:35,012 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 17:37:35,015 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:37:35,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:35,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:37:35,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:35,071 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:37:35,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:35,072 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 17:37:35,099 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 17:37:35,169 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 17:37:35,174 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 17:37:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2023-10-12 17:37:35,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:37:35,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:35,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:37:35,180 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:35,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:37:35,180 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:35,180 INFO L430 stractBuchiCegarLoop]: Abstraction has has 26 places, 60 transitions, 312 flow [2023-10-12 17:37:35,180 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:37:35,180 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 26 places, 60 transitions, 312 flow [2023-10-12 17:37:35,182 ERROR L47 etriNetUnfolderRabin]: [1:1A:[54] $Ultimate##0-->L56: Formula: (and (= v_x_1_3 0) (= v_x_3_1 v_x_1_3) (= v_i_1_5 v_x_1_3) (<= 0 v_b_3) (= v_i_2_5 v_x_1_3) (= v_i_3_1 v_x_1_3) (= v_x_2_3 v_x_1_3) (<= 0 v_a_3) (<= 0 v_c_3)) InVars {x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} OutVars{x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} AuxVars[] AssignedVars[][22], 2:2A:[75] L56-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][2], 4:3A:[78] L56-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1][16]][5:4A:[88] L34-1-->L34-1: Formula: (and (= (+ v_i_2_13 1) v_i_2_12) (= (+ v_c_11 v_x_2_14) v_x_2_13) (< v_i_2_13 v_b_8)) InVars {x_2=v_x_2_14, i_2=v_i_2_13, c=v_c_11, b=v_b_8} OutVars{x_2=v_x_2_13, i_2=v_i_2_12, c=v_c_11, b=v_b_8} AuxVars[] AssignedVars[x_2, i_2][37]] [2023-10-12 17:37:35,182 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:35,183 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2023-10-12 17:37:35,183 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:37:35,183 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:35,183 INFO L748 eck$LassoCheckResult]: Stem: 37#[$Ultimate##0]true [54] $Ultimate##0-->L56: Formula: (and (= v_x_1_3 0) (= v_x_3_1 v_x_1_3) (= v_i_1_5 v_x_1_3) (<= 0 v_b_3) (= v_i_2_5 v_x_1_3) (= v_i_3_1 v_x_1_3) (= v_x_2_3 v_x_1_3) (<= 0 v_a_3) (<= 0 v_c_3)) InVars {x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} OutVars{x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} AuxVars[] AssignedVars[] 39#[L56]true [75] L56-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 41#[L23-1, L56-1]true [78] L56-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 76#[L23-1, L34-1, L57]true [2023-10-12 17:37:35,184 INFO L750 eck$LassoCheckResult]: Loop: 76#[L23-1, L34-1, L57]true [88] L34-1-->L34-1: Formula: (and (= (+ v_i_2_13 1) v_i_2_12) (= (+ v_c_11 v_x_2_14) v_x_2_13) (< v_i_2_13 v_b_8)) InVars {x_2=v_x_2_14, i_2=v_i_2_13, c=v_c_11, b=v_b_8} OutVars{x_2=v_x_2_13, i_2=v_i_2_12, c=v_c_11, b=v_b_8} AuxVars[] AssignedVars[x_2, i_2] 76#[L23-1, L34-1, L57]true [2023-10-12 17:37:35,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:35,184 INFO L85 PathProgramCache]: Analyzing trace with hash 84088, now seen corresponding path program 1 times [2023-10-12 17:37:35,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:35,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562939469] [2023-10-12 17:37:35,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:35,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:35,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:35,197 INFO L85 PathProgramCache]: Analyzing trace with hash 119, now seen corresponding path program 1 times [2023-10-12 17:37:35,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:35,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165784567] [2023-10-12 17:37:35,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:35,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:35,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:35,206 INFO L85 PathProgramCache]: Analyzing trace with hash 2606816, now seen corresponding path program 1 times [2023-10-12 17:37:35,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:35,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028788520] [2023-10-12 17:37:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:35,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:35,241 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:35,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:35,241 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:35,242 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:35,242 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:37:35,242 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:35,242 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:35,242 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:35,242 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:37:35,242 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:35,242 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:35,243 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 17:37:35,249 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 17:37:35,271 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:35,272 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:37:35,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:35,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:35,273 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 17:37:35,275 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 17:37:35,277 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:35,277 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:35,297 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 17:37:35,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:35,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:35,298 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 17:37:35,300 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 17:37:35,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:37:35,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:35,405 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:37:35,409 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 17:37:35,409 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:35,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:35,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:35,410 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:35,410 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:37:35,410 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:35,410 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:35,410 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:35,410 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:37:35,410 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:35,410 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:35,411 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 17:37:35,417 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 17:37:35,443 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:35,443 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:37:35,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:35,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:35,444 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 17:37:35,460 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 17:37:35,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:35,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:37:35,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:35,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:35,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:35,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:37:35,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:37:35,471 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 17:37:35,489 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:37:35,493 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:37:35,493 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:37:35,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:35,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:35,499 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 17:37:35,500 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 17:37:35,503 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:37:35,503 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:37:35,503 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:37:35,503 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(b, i_2) = 1*b - 1*i_2 Supporting invariants [] [2023-10-12 17:37:35,508 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 17:37:35,509 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:37:35,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:35,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:37:35,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:35,553 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:37:35,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:35,553 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 17:37:35,554 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 17:37:35,613 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 17:37:35,614 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 17:37:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2023-10-12 17:37:35,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:37:35,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:35,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:37:35,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:35,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:37:35,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:35,616 INFO L430 stractBuchiCegarLoop]: Abstraction has has 30 places, 240 transitions, 1728 flow [2023-10-12 17:37:35,616 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:37:35,616 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 30 places, 240 transitions, 1728 flow [2023-10-12 17:37:35,619 ERROR L47 etriNetUnfolderRabin]: [1:1A:[54] $Ultimate##0-->L56: Formula: (and (= v_x_1_3 0) (= v_x_3_1 v_x_1_3) (= v_i_1_5 v_x_1_3) (<= 0 v_b_3) (= v_i_2_5 v_x_1_3) (= v_i_3_1 v_x_1_3) (= v_x_2_3 v_x_1_3) (<= 0 v_a_3) (<= 0 v_c_3)) InVars {x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} OutVars{x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} AuxVars[] AssignedVars[][88], 2:2A:[75] L56-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][8], 4:3A:[78] L56-1-->L34-1: 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][64], 7:4A:[81] L57-->L45-1: 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][101]][8:5A:[92] L45-1-->L45-1: Formula: (and (< v_i_3_13 (+ v_a_12 v_b_12)) (= (+ v_c_15 v_x_3_14) v_x_3_13) (= (+ v_i_3_13 1) v_i_3_12)) InVars {a=v_a_12, x_3=v_x_3_14, i_3=v_i_3_13, c=v_c_15, b=v_b_12} OutVars{a=v_a_12, x_3=v_x_3_13, i_3=v_i_3_12, c=v_c_15, b=v_b_12} AuxVars[] AssignedVars[x_3, i_3][182]] [2023-10-12 17:37:35,619 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:35,620 INFO L124 PetriNetUnfolderBase]: 2/7 cut-off events. [2023-10-12 17:37:35,620 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:37:35,620 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:35,620 INFO L748 eck$LassoCheckResult]: Stem: 37#[$Ultimate##0]true [54] $Ultimate##0-->L56: Formula: (and (= v_x_1_3 0) (= v_x_3_1 v_x_1_3) (= v_i_1_5 v_x_1_3) (<= 0 v_b_3) (= v_i_2_5 v_x_1_3) (= v_i_3_1 v_x_1_3) (= v_x_2_3 v_x_1_3) (<= 0 v_a_3) (<= 0 v_c_3)) InVars {x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} OutVars{x_1=v_x_1_3, a=v_a_3, x_2=v_x_2_3, x_3=v_x_3_1, i_2=v_i_2_5, i_3=v_i_3_1, i_1=v_i_1_5, c=v_c_3, b=v_b_3} AuxVars[] AssignedVars[] 39#[L56]true [75] L56-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 41#[L23-1, L56-1]true [78] L56-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 76#[L23-1, L34-1, L57]true [81] L57-->L45-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 110#[L23-1, L34-1, L45-1, L58]true [2023-10-12 17:37:35,621 INFO L750 eck$LassoCheckResult]: Loop: 110#[L23-1, L34-1, L45-1, L58]true [92] L45-1-->L45-1: Formula: (and (< v_i_3_13 (+ v_a_12 v_b_12)) (= (+ v_c_15 v_x_3_14) v_x_3_13) (= (+ v_i_3_13 1) v_i_3_12)) InVars {a=v_a_12, x_3=v_x_3_14, i_3=v_i_3_13, c=v_c_15, b=v_b_12} OutVars{a=v_a_12, x_3=v_x_3_13, i_3=v_i_3_12, c=v_c_15, b=v_b_12} AuxVars[] AssignedVars[x_3, i_3] 110#[L23-1, L34-1, L45-1, L58]true [2023-10-12 17:37:35,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:35,621 INFO L85 PathProgramCache]: Analyzing trace with hash 2606809, now seen corresponding path program 1 times [2023-10-12 17:37:35,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:35,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469100573] [2023-10-12 17:37:35,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:35,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:35,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:35,637 INFO L85 PathProgramCache]: Analyzing trace with hash 123, now seen corresponding path program 1 times [2023-10-12 17:37:35,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:35,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488763916] [2023-10-12 17:37:35,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:35,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:35,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:35,660 INFO L85 PathProgramCache]: Analyzing trace with hash 80811171, now seen corresponding path program 1 times [2023-10-12 17:37:35,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:35,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80349845] [2023-10-12 17:37:35,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:35,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:35,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:35,711 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:35,711 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:35,711 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:35,711 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:35,712 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:37:35,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:35,712 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:35,712 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:35,712 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:37:35,712 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:35,712 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:35,713 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 17:37:35,719 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 17:37:35,743 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:35,743 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:37:35,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:35,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:35,745 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 17:37:35,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:35,755 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:35,764 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 17:37:35,770 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 17:37:35,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:35,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:35,773 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 17:37:35,775 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 17:37:35,777 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:37:35,777 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:37,601 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:37:37,604 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 17:37:37,605 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:37,605 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:37,605 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:37,605 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:37,605 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:37:37,605 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:37,605 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:37,605 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:37,605 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-dist.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:37:37,605 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:37,605 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:37,606 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 17:37:37,615 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 17:37:37,647 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:37,648 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:37:37,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:37,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:37,649 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 17:37:37,658 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 17:37:37,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:37,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:37:37,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:37,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:37,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:37,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:37:37,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:37:37,669 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 17:37:37,676 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:37:37,680 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:37:37,680 INFO L444 ModelExtractionUtils]: 0 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:37:37,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:37,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:37,683 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 17:37:37,688 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:37:37,688 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:37:37,688 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:37:37,688 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(b, i_3, a) = 1*b - 1*i_3 + 1*a Supporting invariants [] [2023-10-12 17:37:37,690 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 17:37:37,691 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 17:37:37,692 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:37:37,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:37,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:37:37,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:37,736 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:37:37,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:37,738 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 17:37:37,739 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 17:37:37,813 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 17:37:37,814 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 17:37:37,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2023-10-12 17:37:37,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:37:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:37,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:37:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:37,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:37:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:37,815 INFO L430 stractBuchiCegarLoop]: Abstraction has has 34 places, 960 transitions, 8832 flow [2023-10-12 17:37:37,815 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:37:37,815 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 34 places, 960 transitions, 8832 flow [2023-10-12 17:37:37,863 INFO L124 PetriNetUnfolderBase]: 90/133 cut-off events. [2023-10-12 17:37:37,863 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-10-12 17:37:37,863 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is empty [2023-10-12 17:37:37,869 INFO L201 PluginConnector]: Adding new model mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:37:37 BoogieIcfgContainer [2023-10-12 17:37:37,870 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:37:37,876 INFO L158 Benchmark]: Toolchain (without parser) took 4264.18ms. Allocated memory was 176.2MB in the beginning and 283.1MB in the end (delta: 107.0MB). Free memory was 121.3MB in the beginning and 168.4MB in the end (delta: -47.0MB). Peak memory consumption was 59.3MB. Max. memory is 8.0GB. [2023-10-12 17:37:37,876 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.30ms. Allocated memory is still 176.2MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:37:37,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.37ms. Allocated memory is still 176.2MB. Free memory was 121.2MB in the beginning and 119.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:37:37,878 INFO L158 Benchmark]: Boogie Preprocessor took 27.91ms. Allocated memory is still 176.2MB. Free memory was 119.7MB in the beginning and 118.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:37:37,878 INFO L158 Benchmark]: RCFGBuilder took 268.20ms. Allocated memory is still 176.2MB. Free memory was 118.6MB in the beginning and 108.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:37:37,880 INFO L158 Benchmark]: BuchiAutomizer took 3937.46ms. Allocated memory was 176.2MB in the beginning and 283.1MB in the end (delta: 107.0MB). Free memory was 108.4MB in the beginning and 168.4MB in the end (delta: -60.0MB). Peak memory consumption was 46.7MB. Max. memory is 8.0GB. [2023-10-12 17:37:37,886 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 0.30ms. Allocated memory is still 176.2MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.37ms. Allocated memory is still 176.2MB. Free memory was 121.2MB in the beginning and 119.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.91ms. Allocated memory is still 176.2MB. Free memory was 119.7MB in the beginning and 118.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 268.20ms. Allocated memory is still 176.2MB. Free memory was 118.6MB in the beginning and 108.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 3937.46ms. Allocated memory was 176.2MB in the beginning and 283.1MB in the end (delta: 107.0MB). Free memory was 108.4MB in the beginning and 168.4MB in the end (delta: -60.0MB). Peak memory consumption was 46.7MB. 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 a + -1 * i_1 and consists of 4 locations. One deterministic module has affine ranking function -1 * i_2 + b and consists of 4 locations. One deterministic module has affine ranking function -1 * i_3 + b + a and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 4 iterations. TraceHistogramMax:0. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. 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: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 204 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 137 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 97 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 128ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s 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: 0.2s, 30 PlacesBefore, 22 PlacesAfterwards, 23 TransitionsBefore, 15 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 106 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 106, independent: 106, independent conditional: 0, independent unconditional: 106, 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: 82, independent: 82, independent conditional: 0, independent unconditional: 82, 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: 82, independent: 82, independent conditional: 0, independent unconditional: 82, 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: 106, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 82, unknown conditional: 0, unknown unconditional: 82] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, 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 17:37:37,899 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 17:37:38,097 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 17:37:38,297 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 17:37:38,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...