/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/bench/exp2x3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:12:57,394 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:12:57,454 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 17:12:57,477 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:12:57,477 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:12:57,478 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:12:57,479 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:12:57,479 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:12:57,479 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:12:57,482 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:12:57,482 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:12:57,482 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:12:57,483 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:12:57,483 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:12:57,484 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:12:57,484 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:12:57,484 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:12:57,485 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:12:57,485 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:12:57,485 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:12:57,485 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:12:57,485 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:12:57,485 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:12:57,486 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:12:57,486 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:12:57,486 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:12:57,486 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:12:57,486 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:12:57,486 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:12:57,486 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:12:57,487 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:12:57,487 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:12:57,487 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:12:57,489 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:12:57,489 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:12:57,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:12:57,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:12:57,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:12:57,661 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:12:57,662 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:12:57,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl [2023-10-12 17:12:57,663 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl' [2023-10-12 17:12:57,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:12:57,695 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:12:57,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:57,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:12:57,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:12:57,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/1) ... [2023-10-12 17:12:57,711 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/1) ... [2023-10-12 17:12:57,715 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:12:57,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:57,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:12:57,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:12:57,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:12:57,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/1) ... [2023-10-12 17:12:57,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/1) ... [2023-10-12 17:12:57,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/1) ... [2023-10-12 17:12:57,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/1) ... [2023-10-12 17:12:57,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/1) ... [2023-10-12 17:12:57,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/1) ... [2023-10-12 17:12:57,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/1) ... [2023-10-12 17:12:57,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/1) ... [2023-10-12 17:12:57,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:12:57,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:12:57,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:12:57,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:12:57,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/1) ... [2023-10-12 17:12:57,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:57,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:57,770 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 17:12:57,777 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 17:12:57,804 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:12:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:12:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:12:57,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:12:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:12:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:12:57,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:12:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:12:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:12:57,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:12:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:12:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:12:57,805 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:12:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:12:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:12:57,806 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 17:12:57,838 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:12:57,839 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:12:57,923 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:12:57,927 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:12:57,927 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:12:57,929 INFO L201 PluginConnector]: Adding new model exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:57 BoogieIcfgContainer [2023-10-12 17:12:57,929 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:12:57,929 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:12:57,930 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:12:57,938 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:12:57,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:57,938 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:57" (1/2) ... [2023-10-12 17:12:57,939 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@617d33bf and model type exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:12:57, skipping insertion in model container [2023-10-12 17:12:57,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:57,940 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:57" (2/2) ... [2023-10-12 17:12:57,941 INFO L332 chiAutomizerObserver]: Analyzing ICFG exp2x3.wvr.bpl [2023-10-12 17:12:58,011 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:12:58,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 106 flow [2023-10-12 17:12:58,051 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2023-10-12 17:12:58,051 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:12:58,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:12:58,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 106 flow [2023-10-12 17:12:58,058 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 29 transitions, 82 flow [2023-10-12 17:12:58,060 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:12:58,069 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 29 transitions, 82 flow [2023-10-12 17:12:58,071 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 29 transitions, 82 flow [2023-10-12 17:12:58,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 29 transitions, 82 flow [2023-10-12 17:12:58,079 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2023-10-12 17:12:58,079 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:12:58,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:12:58,080 INFO L119 LiptonReduction]: Number of co-enabled transitions 288 [2023-10-12 17:12:58,214 INFO L134 LiptonReduction]: Checked pairs total: 222 [2023-10-12 17:12:58,214 INFO L136 LiptonReduction]: Total number of compositions: 11 [2023-10-12 17:12:58,230 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:12:58,230 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:12:58,231 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:12:58,231 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:12:58,231 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:12:58,231 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:12:58,231 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:12:58,231 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:12:58,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:12:58,268 INFO L131 ngComponentsAnalysis]: Automaton has 37 accepting balls. 37 [2023-10-12 17:12:58,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:58,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:58,272 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:12:58,272 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:58,272 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:12:58,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 48 states, but on-demand construction may add more states [2023-10-12 17:12:58,276 INFO L131 ngComponentsAnalysis]: Automaton has 37 accepting balls. 37 [2023-10-12 17:12:58,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:58,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:58,277 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:12:58,277 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:58,280 INFO L748 eck$LassoCheckResult]: Stem: 45#[$Ultimate##0]don't care [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 48#[L51]don't care [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 50#[L18, L51-1]don't care [2023-10-12 17:12:58,281 INFO L750 eck$LassoCheckResult]: Loop: 50#[L18, L51-1]don't care [103] L18-->L18: Formula: (and (= v_x1_9 (* 2 v_x1_10)) (< v_x1_10 v_n_11)) InVars {n=v_n_11, x1=v_x1_10} OutVars{n=v_n_11, x1=v_x1_9} AuxVars[] AssignedVars[x1] 50#[L18, L51-1]don't care [2023-10-12 17:12:58,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:58,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2980, now seen corresponding path program 1 times [2023-10-12 17:12:58,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:58,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570160538] [2023-10-12 17:12:58,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:58,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:58,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:58,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:58,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:58,391 INFO L85 PathProgramCache]: Analyzing trace with hash 134, now seen corresponding path program 1 times [2023-10-12 17:12:58,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:58,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769130362] [2023-10-12 17:12:58,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:58,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:58,397 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:58,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:58,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:58,401 INFO L85 PathProgramCache]: Analyzing trace with hash 92483, now seen corresponding path program 1 times [2023-10-12 17:12:58,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:58,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622732043] [2023-10-12 17:12:58,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:58,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:58,406 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:58,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:58,496 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:58,497 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:58,497 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:58,497 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:58,497 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:12:58,497 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:58,497 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:58,497 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:58,497 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:12:58,498 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:58,498 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:58,509 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 17:12:58,518 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 17:12:58,542 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 17:12:58,592 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:58,593 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:12:58,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:58,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:58,596 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 17:12:58,613 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 17:12:58,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:58,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:58,642 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:58,642 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x4=4, x3=4} Honda state: {x4=4, x3=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:12:58,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:58,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:58,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:58,649 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 17:12:58,652 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 17:12:58,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:58,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:58,667 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 17:12:58,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:58,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:58,668 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 17:12:58,670 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 17:12:58,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:12:58,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:58,737 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:12:58,740 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 17:12:58,742 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:58,742 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:58,742 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:58,742 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:58,742 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:58,742 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:58,742 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:58,742 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:58,742 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:12:58,742 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:58,742 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:58,743 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 17:12:58,751 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 17:12:58,759 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 17:12:58,795 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:58,798 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:58,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:58,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:58,800 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 17:12:58,807 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 17:12:58,807 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 17:12:58,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:58,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:58,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:58,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:58,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:58,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:58,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:58,850 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 17:12:58,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:58,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:58,852 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 17:12:58,854 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 17:12:58,856 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 17:12:58,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:58,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:58,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:58,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:58,866 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:58,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:58,881 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:58,901 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:12:58,902 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:12:58,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:58,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:58,919 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 17:12:58,920 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 17:12:58,947 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:58,969 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:12:58,970 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:58,970 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, n) = -1*x1 + 1*n Supporting invariants [1*x1 - 1 >= 0] [2023-10-12 17:12:58,975 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 17:12:58,983 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:12:59,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:59,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjunts are in the unsatisfiable core [2023-10-12 17:12:59,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:59,047 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:12:59,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:12:59,048 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 17:12:59,071 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-10-12 17:12:59,073 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 48 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.0) 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 17:12:59,152 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 48 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.0) 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 137 states and 541 transitions. Complement of second has 6 states. [2023-10-12 17:12:59,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:12:59,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) 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 17:12:59,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2023-10-12 17:12:59,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:12:59,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:59,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:12:59,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:59,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:12:59,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:12:59,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 541 transitions. [2023-10-12 17:12:59,165 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 33 [2023-10-12 17:12:59,169 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 94 states and 381 transitions. [2023-10-12 17:12:59,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2023-10-12 17:12:59,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2023-10-12 17:12:59,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 381 transitions. [2023-10-12 17:12:59,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:12:59,171 INFO L219 hiAutomatonCegarLoop]: Abstraction has 94 states and 381 transitions. [2023-10-12 17:12:59,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 381 transitions. [2023-10-12 17:12:59,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 68. [2023-10-12 17:12:59,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 4.220588235294118) internal successors, (287), 67 states have internal predecessors, (287), 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 17:12:59,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 287 transitions. [2023-10-12 17:12:59,191 INFO L241 hiAutomatonCegarLoop]: Abstraction has 68 states and 287 transitions. [2023-10-12 17:12:59,191 INFO L430 stractBuchiCegarLoop]: Abstraction has 68 states and 287 transitions. [2023-10-12 17:12:59,192 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:12:59,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 287 transitions. [2023-10-12 17:12:59,198 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 33 [2023-10-12 17:12:59,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:59,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:59,198 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:12:59,198 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:12:59,198 INFO L748 eck$LassoCheckResult]: Stem: 454#[$Ultimate##0]don't care [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 346#[L51]don't care [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 348#[L18, L51-1]don't care [88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 320#[L52, L18, L26]don't care [2023-10-12 17:12:59,198 INFO L750 eck$LassoCheckResult]: Loop: 320#[L52, L18, L26]don't care [111] L26-->L26: Formula: (and (< v_x2_14 v_n_23) (= v_x2_13 (* 2 v_x2_14))) InVars {n=v_n_23, x2=v_x2_14} OutVars{n=v_n_23, x2=v_x2_13} AuxVars[] AssignedVars[x2] 320#[L52, L18, L26]don't care [2023-10-12 17:12:59,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:59,199 INFO L85 PathProgramCache]: Analyzing trace with hash 92468, now seen corresponding path program 1 times [2023-10-12 17:12:59,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:59,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8879108] [2023-10-12 17:12:59,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:59,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:59,203 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:59,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:59,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:59,206 INFO L85 PathProgramCache]: Analyzing trace with hash 142, now seen corresponding path program 1 times [2023-10-12 17:12:59,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:59,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147720788] [2023-10-12 17:12:59,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:59,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:59,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:59,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:59,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:59,211 INFO L85 PathProgramCache]: Analyzing trace with hash 2866619, now seen corresponding path program 1 times [2023-10-12 17:12:59,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:59,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909287000] [2023-10-12 17:12:59,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:59,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:59,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:59,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:59,264 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:59,264 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:59,264 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:59,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:59,265 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:12:59,265 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,265 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:59,265 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:59,265 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:12:59,265 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:59,265 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:59,266 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 17:12:59,269 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 17:12:59,272 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 17:12:59,274 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 17:12:59,285 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 17:12:59,334 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:59,335 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:12:59,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,336 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 17:12:59,338 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 17:12:59,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:59,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:59,361 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:59,361 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork3_thidvar0=0} Honda state: {thread1Thread1of1ForFork3_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:12:59,378 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 17:12:59,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,379 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 17:12:59,381 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 17:12:59,426 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:59,426 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:59,449 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:59,449 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar1=0} Honda state: {thread2Thread1of1ForFork0_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:12:59,452 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 17:12:59,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,453 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 17:12:59,454 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 17:12:59,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:59,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:59,464 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:59,464 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar0=0} Honda state: {thread2Thread1of1ForFork0_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:12:59,467 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 17:12:59,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,468 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 17:12:59,471 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 17:12:59,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:59,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:59,519 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:12:59,520 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x3=4, x4=4} Honda state: {x3=4, x4=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:12:59,522 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 17:12:59,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,524 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 17:12:59,526 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 17:12:59,527 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:12:59,528 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:59,555 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 17:12:59,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,556 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 17:12:59,557 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 17:12:59,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:12:59,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:12:59,628 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:12:59,630 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 17:12:59,631 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:12:59,631 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:12:59,631 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:12:59,631 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:12:59,631 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:12:59,631 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,631 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:12:59,631 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:12:59,631 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:12:59,631 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:12:59,631 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:12:59,632 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 17:12:59,646 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 17:12:59,648 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 17:12:59,652 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 17:12:59,654 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 17:12:59,709 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:12:59,709 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:12:59,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,710 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 17:12:59,713 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 17:12:59,714 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 17:12:59,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:59,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:59,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:59,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:59,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:59,723 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:59,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:59,741 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 17:12:59,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,742 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 17:12:59,744 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 17:12:59,745 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 17:12:59,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:59,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:59,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:59,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:59,752 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:59,752 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:59,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:59,779 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 17:12:59,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,780 INFO L229 MonitoredProcess]: Starting monitored process 16 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 17:12:59,798 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 17:12:59,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-10-12 17:12:59,801 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 17:12:59,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:59,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:59,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:59,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:59,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:59,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:59,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:59,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:59,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,838 INFO L229 MonitoredProcess]: Starting monitored process 17 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 17:12:59,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-10-12 17:12:59,842 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 17:12:59,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:59,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:59,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:59,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:59,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:59,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:59,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:12:59,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:59,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,864 INFO L229 MonitoredProcess]: Starting monitored process 18 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 17:12:59,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-10-12 17:12:59,867 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 17:12:59,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:12:59,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:12:59,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:12:59,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:12:59,880 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:12:59,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:12:59,892 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:12:59,900 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-10-12 17:12:59,900 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:12:59,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:59,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:59,909 INFO L229 MonitoredProcess]: Starting monitored process 19 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 17:12:59,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-10-12 17:12:59,913 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:12:59,934 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:12:59,935 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:12:59,935 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, n) = -1*x2 + 1*n Supporting invariants [1*x2 - 1 >= 0] [2023-10-12 17:12:59,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-10-12 17:12:59,940 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:12:59,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:12:59,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:12:59,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:00,014 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:13:00,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:00,014 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 17:13:00,015 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-10-12 17:13:00,015 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 287 transitions. cyclomatic complexity: 266 Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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 17:13:00,061 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 287 transitions. cyclomatic complexity: 266. Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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 217 states and 958 transitions. Complement of second has 5 states. [2023-10-12 17:13:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:13:00,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) 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 17:13:00,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2023-10-12 17:13:00,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:00,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:00,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:00,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:00,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:13:00,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:00,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217 states and 958 transitions. [2023-10-12 17:13:00,068 INFO L131 ngComponentsAnalysis]: Automaton has 26 accepting balls. 26 [2023-10-12 17:13:00,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217 states to 154 states and 669 transitions. [2023-10-12 17:13:00,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2023-10-12 17:13:00,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84 [2023-10-12 17:13:00,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 669 transitions. [2023-10-12 17:13:00,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:00,072 INFO L219 hiAutomatonCegarLoop]: Abstraction has 154 states and 669 transitions. [2023-10-12 17:13:00,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 669 transitions. [2023-10-12 17:13:00,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 125. [2023-10-12 17:13:00,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 4.64) internal successors, (580), 124 states have internal predecessors, (580), 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 17:13:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 580 transitions. [2023-10-12 17:13:00,081 INFO L241 hiAutomatonCegarLoop]: Abstraction has 125 states and 580 transitions. [2023-10-12 17:13:00,081 INFO L430 stractBuchiCegarLoop]: Abstraction has 125 states and 580 transitions. [2023-10-12 17:13:00,082 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:13:00,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 580 transitions. [2023-10-12 17:13:00,083 INFO L131 ngComponentsAnalysis]: Automaton has 26 accepting balls. 26 [2023-10-12 17:13:00,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:00,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:00,084 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:13:00,084 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:00,084 INFO L748 eck$LassoCheckResult]: Stem: 890#[$Ultimate##0]don't care [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 750#[L51]don't care [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 752#[L18, L51-1]don't care [88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 714#[L52, L18, L26]don't care [91] L52-->L34: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2] 720#[L18, L34, L53, L26]don't care [2023-10-12 17:13:00,084 INFO L750 eck$LassoCheckResult]: Loop: 720#[L18, L34, L53, L26]don't care [109] L34-->L34: Formula: (and (= (* 2 v_x3_14) v_x3_13) (< v_x3_14 v_n_19)) InVars {n=v_n_19, x3=v_x3_14} OutVars{n=v_n_19, x3=v_x3_13} AuxVars[] AssignedVars[x3] 720#[L18, L34, L53, L26]don't care [2023-10-12 17:13:00,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:00,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2866599, now seen corresponding path program 1 times [2023-10-12 17:13:00,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:00,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995137920] [2023-10-12 17:13:00,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:00,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:00,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:00,098 INFO L85 PathProgramCache]: Analyzing trace with hash 140, now seen corresponding path program 1 times [2023-10-12 17:13:00,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:00,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153952476] [2023-10-12 17:13:00,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:00,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:00,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:00,117 INFO L85 PathProgramCache]: Analyzing trace with hash 88864678, now seen corresponding path program 1 times [2023-10-12 17:13:00,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:00,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947080106] [2023-10-12 17:13:00,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:00,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,131 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:00,199 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:00,200 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:00,200 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:00,200 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:00,200 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:13:00,200 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,200 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:00,200 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:00,200 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:13:00,200 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:00,200 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:00,201 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 17:13:00,203 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 17:13:00,208 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 17:13:00,210 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 17:13:00,215 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 17:13:00,219 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 17:13:00,223 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 17:13:00,224 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 17:13:00,292 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:00,292 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:13:00,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:00,293 INFO L229 MonitoredProcess]: Starting monitored process 20 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 17:13:00,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-10-12 17:13:00,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:00,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:00,306 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:00,306 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar0=0} Honda state: {thread2Thread1of1ForFork0_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:13:00,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-10-12 17:13:00,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:00,311 INFO L229 MonitoredProcess]: Starting monitored process 21 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 17:13:00,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-10-12 17:13:00,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:00,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:00,326 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:00,326 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar2=0} Honda state: {thread3Thread1of1ForFork1_thidvar2=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:13:00,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:00,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:00,332 INFO L229 MonitoredProcess]: Starting monitored process 22 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 17:13:00,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-10-12 17:13:00,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:00,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:00,343 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:00,343 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar1=0} Honda state: {thread2Thread1of1ForFork0_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:13:00,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:00,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:00,349 INFO L229 MonitoredProcess]: Starting monitored process 23 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 17:13:00,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-10-12 17:13:00,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:00,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:00,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-10-12 17:13:00,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:00,382 INFO L229 MonitoredProcess]: Starting monitored process 24 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 17:13:00,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-10-12 17:13:00,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:13:00,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:00,453 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:13:00,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-10-12 17:13:00,457 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:00,457 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:00,457 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:00,457 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:00,457 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:00,457 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,457 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:00,457 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:00,457 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:13:00,457 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:00,457 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:00,458 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 17:13:00,464 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 17:13:00,466 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 17:13:00,475 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 17:13:00,477 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 17:13:00,479 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 17:13:00,482 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 17:13:00,484 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 17:13:00,545 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:00,545 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:00,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:00,546 INFO L229 MonitoredProcess]: Starting monitored process 25 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 17:13:00,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-10-12 17:13:00,550 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 17:13:00,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:00,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:00,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:00,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:00,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:00,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:00,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:00,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:00,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:00,576 INFO L229 MonitoredProcess]: Starting monitored process 26 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 17:13:00,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-10-12 17:13:00,579 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 17:13:00,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:00,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:00,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:00,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:00,588 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:00,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:00,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:00,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:00,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:00,602 INFO L229 MonitoredProcess]: Starting monitored process 27 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 17:13:00,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-10-12 17:13:00,606 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 17:13:00,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:00,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:00,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:00,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:00,615 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:00,615 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:00,631 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:00,636 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:13:00,636 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:13:00,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:00,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:00,797 INFO L229 MonitoredProcess]: Starting monitored process 28 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 17:13:00,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-10-12 17:13:00,801 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:00,822 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:13:00,822 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:00,822 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x3, n) = -1*x3 + 1*n Supporting invariants [1*x3 - 1 >= 0] [2023-10-12 17:13:00,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:00,845 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:13:00,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:00,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2023-10-12 17:13:00,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:00,882 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:13:00,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:00,882 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 17:13:00,883 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-10-12 17:13:00,883 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 125 states and 580 transitions. cyclomatic complexity: 515 Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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 17:13:00,936 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 125 states and 580 transitions. cyclomatic complexity: 515. Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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 377 states and 1749 transitions. Complement of second has 5 states. [2023-10-12 17:13:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:13:00,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) 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 17:13:00,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2023-10-12 17:13:00,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:00,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:00,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:13:00,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:00,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:13:00,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:00,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 377 states and 1749 transitions. [2023-10-12 17:13:00,943 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 15 [2023-10-12 17:13:00,946 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 377 states to 223 states and 1020 transitions. [2023-10-12 17:13:00,946 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2023-10-12 17:13:00,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 88 [2023-10-12 17:13:00,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 223 states and 1020 transitions. [2023-10-12 17:13:00,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:00,947 INFO L219 hiAutomatonCegarLoop]: Abstraction has 223 states and 1020 transitions. [2023-10-12 17:13:00,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states and 1020 transitions. [2023-10-12 17:13:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 188. [2023-10-12 17:13:00,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 188 states have (on average 4.803191489361702) internal successors, (903), 187 states have internal predecessors, (903), 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 17:13:00,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 903 transitions. [2023-10-12 17:13:00,961 INFO L241 hiAutomatonCegarLoop]: Abstraction has 188 states and 903 transitions. [2023-10-12 17:13:00,961 INFO L430 stractBuchiCegarLoop]: Abstraction has 188 states and 903 transitions. [2023-10-12 17:13:00,961 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:13:00,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 903 transitions. [2023-10-12 17:13:00,962 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 15 [2023-10-12 17:13:00,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:00,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:00,963 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-10-12 17:13:00,963 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:00,963 INFO L748 eck$LassoCheckResult]: Stem: 1575#[$Ultimate##0]don't care [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 1423#[L51]don't care [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 1425#[L18, L51-1]don't care [88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 1385#[L52, L18, L26]don't care [91] L52-->L34: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2] 1391#[L18, L34, L53, L26]don't care [94] L53-->L42: Formula: (and (= 4 v_thread4Thread1of1ForFork2_thidvar2_2) (= 4 v_thread4Thread1of1ForFork2_thidvar3_2) (= 4 v_thread4Thread1of1ForFork2_thidvar1_2) (= 4 v_thread4Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread4Thread1of1ForFork2_thidvar3=v_thread4Thread1of1ForFork2_thidvar3_2, thread4Thread1of1ForFork2_thidvar0=v_thread4Thread1of1ForFork2_thidvar0_2, thread4Thread1of1ForFork2_thidvar2=v_thread4Thread1of1ForFork2_thidvar2_2, thread4Thread1of1ForFork2_thidvar1=v_thread4Thread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork2_thidvar3, thread4Thread1of1ForFork2_thidvar0, thread4Thread1of1ForFork2_thidvar2, thread4Thread1of1ForFork2_thidvar1] 1465#[L42, L54, L18, L34, L26]don't care [2023-10-12 17:13:00,963 INFO L750 eck$LassoCheckResult]: Loop: 1465#[L42, L54, L18, L34, L26]don't care [107] L42-->L42: Formula: (and (= v_x4_13 (* 2 v_x4_14)) (< v_x4_14 v_n_15)) InVars {n=v_n_15, x4=v_x4_14} OutVars{n=v_n_15, x4=v_x4_13} AuxVars[] AssignedVars[x4] 1465#[L42, L54, L18, L34, L26]don't care [2023-10-12 17:13:00,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:00,964 INFO L85 PathProgramCache]: Analyzing trace with hash 88864663, now seen corresponding path program 1 times [2023-10-12 17:13:00,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:00,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284225750] [2023-10-12 17:13:00,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:00,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:00,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:00,972 INFO L85 PathProgramCache]: Analyzing trace with hash 138, now seen corresponding path program 1 times [2023-10-12 17:13:00,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:00,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623522858] [2023-10-12 17:13:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:00,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,976 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:00,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:00,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1540162636, now seen corresponding path program 1 times [2023-10-12 17:13:00,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:00,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23112138] [2023-10-12 17:13:00,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:00,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:00,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:01,056 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:01,056 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:01,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:01,057 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:01,057 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:13:01,057 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:01,057 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:01,057 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:01,057 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:13:01,057 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:01,057 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:01,058 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 17:13:01,060 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 17:13:01,062 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 17:13:01,068 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 17:13:01,070 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 17:13:01,072 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 17:13:01,074 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 17:13:01,076 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 17:13:01,078 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 17:13:01,079 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 17:13:01,081 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 17:13:01,085 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 17:13:01,158 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:01,158 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:13:01,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:01,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:01,159 INFO L229 MonitoredProcess]: Starting monitored process 29 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 17:13:01,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-10-12 17:13:01,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:01,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:01,175 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:01,176 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar2=0} Honda state: {thread3Thread1of1ForFork1_thidvar2=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:13:01,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:01,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:01,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:01,179 INFO L229 MonitoredProcess]: Starting monitored process 30 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 17:13:01,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-10-12 17:13:01,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:01,182 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:01,198 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:01,198 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar1=0} Honda state: {thread3Thread1of1ForFork1_thidvar1=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:13:01,200 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-10-12 17:13:01,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:01,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:01,201 INFO L229 MonitoredProcess]: Starting monitored process 31 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 17:13:01,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-10-12 17:13:01,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:01,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:01,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:01,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:01,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:01,266 INFO L229 MonitoredProcess]: Starting monitored process 32 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 17:13:01,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-10-12 17:13:01,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:13:01,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:01,341 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:13:01,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-10-12 17:13:01,344 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:01,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:01,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:01,345 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:01,345 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:01,345 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:01,345 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:01,345 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:01,345 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:13:01,345 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:01,345 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:01,346 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 17:13:01,352 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 17:13:01,354 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 17:13:01,356 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 17:13:01,357 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 17:13:01,367 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 17:13:01,369 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 17:13:01,371 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 17:13:01,373 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 17:13:01,375 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 17:13:01,377 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 17:13:01,379 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 17:13:01,462 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:01,462 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:01,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:01,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:01,463 INFO L229 MonitoredProcess]: Starting monitored process 33 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 17:13:01,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-10-12 17:13:01,466 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 17:13:01,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:01,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:01,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:01,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:01,474 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:01,474 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:01,490 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:01,494 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:13:01,495 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:13:01,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:01,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:01,498 INFO L229 MonitoredProcess]: Starting monitored process 34 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 17:13:01,505 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:01,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-10-12 17:13:01,516 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:13:01,516 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:01,516 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x4, n) = -1*x4 + 1*n Supporting invariants [1*x4 - 1 >= 0] [2023-10-12 17:13:01,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-10-12 17:13:01,527 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:13:01,545 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:01,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:01,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:01,571 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:13:01,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:01,571 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 17:13:01,572 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-10-12 17:13:01,572 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 188 states and 903 transitions. cyclomatic complexity: 785 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:13:01,606 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 188 states and 903 transitions. cyclomatic complexity: 785. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 436 states and 1918 transitions. Complement of second has 5 states. [2023-10-12 17:13:01,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:13:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:13:01,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2023-10-12 17:13:01,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:13:01,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:01,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 6 letters. Loop has 1 letters. [2023-10-12 17:13:01,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:01,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:13:01,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:01,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 436 states and 1918 transitions. [2023-10-12 17:13:01,613 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:01,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 436 states to 0 states and 0 transitions. [2023-10-12 17:13:01,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:13:01,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:13:01,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:13:01,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:13:01,613 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:01,613 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:01,613 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:01,613 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:13:01,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:13:01,613 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:01,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:13:01,618 INFO L201 PluginConnector]: Adding new model exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:13:01 BoogieIcfgContainer [2023-10-12 17:13:01,618 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:13:01,618 INFO L158 Benchmark]: Toolchain (without parser) took 3923.42ms. Allocated memory was 178.3MB in the beginning and 276.8MB in the end (delta: 98.6MB). Free memory was 132.6MB in the beginning and 106.2MB in the end (delta: 26.5MB). Peak memory consumption was 127.5MB. Max. memory is 8.0GB. [2023-10-12 17:13:01,618 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.23ms. Allocated memory is still 178.3MB. Free memory is still 133.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:01,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.27ms. Allocated memory is still 178.3MB. Free memory was 132.5MB in the beginning and 130.9MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-10-12 17:13:01,619 INFO L158 Benchmark]: Boogie Preprocessor took 15.15ms. Allocated memory is still 178.3MB. Free memory was 130.9MB in the beginning and 129.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:13:01,619 INFO L158 Benchmark]: RCFGBuilder took 195.54ms. Allocated memory is still 178.3MB. Free memory was 129.9MB in the beginning and 120.0MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:13:01,619 INFO L158 Benchmark]: BuchiAutomizer took 3688.27ms. Allocated memory was 178.3MB in the beginning and 276.8MB in the end (delta: 98.6MB). Free memory was 119.9MB in the beginning and 106.2MB in the end (delta: 13.7MB). Peak memory consumption was 113.8MB. Max. memory is 8.0GB. [2023-10-12 17:13:01,620 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 0.23ms. Allocated memory is still 178.3MB. Free memory is still 133.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.27ms. Allocated memory is still 178.3MB. Free memory was 132.5MB in the beginning and 130.9MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.15ms. Allocated memory is still 178.3MB. Free memory was 130.9MB in the beginning and 129.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 195.54ms. Allocated memory is still 178.3MB. Free memory was 129.9MB in the beginning and 120.0MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 3688.27ms. Allocated memory was 178.3MB in the beginning and 276.8MB in the end (delta: 98.6MB). Free memory was 119.9MB in the beginning and 106.2MB in the end (delta: 13.7MB). Peak memory consumption was 113.8MB. 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 4 terminating modules (0 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + n and consists of 5 locations. One deterministic module has affine ranking function n + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * x3 + n and consists of 4 locations. One deterministic module has affine ranking function -1 * x4 + n and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 90 StatesRemovedByMinimization, 3 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 [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 4 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital37 mio100 ax100 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf92 smp100 dnf100 smp100 tf100 neg100 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s 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, 38 PlacesBefore, 28 PlacesAfterwards, 29 TransitionsBefore, 19 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 222 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 222, independent: 222, independent conditional: 0, independent unconditional: 222, 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: 168, independent: 168, independent conditional: 0, independent unconditional: 168, 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: 168, independent: 168, independent conditional: 0, independent unconditional: 168, 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: 222, independent: 54, independent conditional: 0, independent unconditional: 54, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 168, unknown conditional: 0, unknown unconditional: 168] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, 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 17:13:01,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-10-12 17:13:01,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:02,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-10-12 17:13:02,233 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...