/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/POPL2023/sumsumsampleabs.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:21:18,969 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:21:19,015 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 17:21:19,043 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:21:19,044 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:21:19,044 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:21:19,045 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:21:19,045 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:21:19,045 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:21:19,046 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:21:19,046 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:21:19,046 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:21:19,046 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:21:19,046 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:21:19,047 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:21:19,047 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:21:19,047 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:21:19,047 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:21:19,048 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:21:19,048 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:21:19,048 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:21:19,053 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:21:19,053 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:21:19,053 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:21:19,053 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:21:19,053 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:21:19,054 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:21:19,054 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:21:19,054 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:21:19,054 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:21:19,054 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:21:19,054 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:21:19,055 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:21:19,055 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:21:19,056 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:21:19,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:21:19,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:21:19,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:21:19,222 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:21:19,223 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:21:19,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sumsumsampleabs.bpl [2023-10-12 17:21:19,224 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sumsumsampleabs.bpl' [2023-10-12 17:21:19,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:21:19,248 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:21:19,250 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:21:19,251 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:21:19,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:21:19,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/1) ... [2023-10-12 17:21:19,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/1) ... [2023-10-12 17:21:19,269 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:21:19,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:21:19,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:21:19,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:21:19,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:21:19,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/1) ... [2023-10-12 17:21:19,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/1) ... [2023-10-12 17:21:19,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/1) ... [2023-10-12 17:21:19,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/1) ... [2023-10-12 17:21:19,283 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/1) ... [2023-10-12 17:21:19,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/1) ... [2023-10-12 17:21:19,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/1) ... [2023-10-12 17:21:19,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/1) ... [2023-10-12 17:21:19,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:21:19,291 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:21:19,291 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:21:19,291 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:21:19,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/1) ... [2023-10-12 17:21:19,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:19,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:19,316 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 17:21:19,325 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 17:21:19,346 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sum1 given in one single declaration [2023-10-12 17:21:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure sum1 [2023-10-12 17:21:19,346 INFO L138 BoogieDeclarations]: Found implementation of procedure sum1 [2023-10-12 17:21:19,346 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sum2 given in one single declaration [2023-10-12 17:21:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure sum2 [2023-10-12 17:21:19,347 INFO L138 BoogieDeclarations]: Found implementation of procedure sum2 [2023-10-12 17:21:19,347 INFO L124 BoogieDeclarations]: Specification and implementation of procedure bank given in one single declaration [2023-10-12 17:21:19,347 INFO L130 BoogieDeclarations]: Found specification of procedure bank [2023-10-12 17:21:19,347 INFO L138 BoogieDeclarations]: Found implementation of procedure bank [2023-10-12 17:21:19,347 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:21:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:21:19,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:21:19,348 INFO L124 BoogieDeclarations]: Specification and implementation of procedure mapAbs given in one single declaration [2023-10-12 17:21:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure mapAbs [2023-10-12 17:21:19,348 INFO L138 BoogieDeclarations]: Found implementation of procedure mapAbs [2023-10-12 17:21:19,349 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 17:21:19,388 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:21:19,390 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:21:19,515 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:21:19,532 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:21:19,532 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-10-12 17:21:19,533 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: bankEXIT is neither atomic block end nor error location. [2023-10-12 17:21:19,535 INFO L201 PluginConnector]: Adding new model sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:21:19 BoogieIcfgContainer [2023-10-12 17:21:19,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:21:19,536 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:21:19,536 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:21:19,549 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:21:19,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:21:19,550 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:19" (1/2) ... [2023-10-12 17:21:19,551 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f22b78e and model type sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:21:19, skipping insertion in model container [2023-10-12 17:21:19,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:21:19,551 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:21:19" (2/2) ... [2023-10-12 17:21:19,555 INFO L332 chiAutomizerObserver]: Analyzing ICFG sumsumsampleabs.bpl [2023-10-12 17:21:19,646 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:21:19,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 36 transitions, 98 flow [2023-10-12 17:21:19,698 INFO L124 PetriNetUnfolderBase]: 4/28 cut-off events. [2023-10-12 17:21:19,699 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:21:19,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 28 events. 4/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-10-12 17:21:19,704 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 36 transitions, 98 flow [2023-10-12 17:21:19,709 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 28 transitions, 74 flow [2023-10-12 17:21:19,712 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:21:19,736 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 28 transitions, 74 flow [2023-10-12 17:21:19,738 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 28 transitions, 74 flow [2023-10-12 17:21:19,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 28 transitions, 74 flow [2023-10-12 17:21:19,750 INFO L124 PetriNetUnfolderBase]: 4/28 cut-off events. [2023-10-12 17:21:19,751 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:21:19,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 28 events. 4/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-10-12 17:21:19,752 INFO L119 LiptonReduction]: Number of co-enabled transitions 390 [2023-10-12 17:21:19,944 INFO L134 LiptonReduction]: Checked pairs total: 261 [2023-10-12 17:21:19,945 INFO L136 LiptonReduction]: Total number of compositions: 7 [2023-10-12 17:21:19,953 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:21:19,954 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:21:19,954 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:21:19,954 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:21:19,954 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:21:19,954 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:21:19,954 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:21:19,954 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:21:19,955 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 places, 21 transitions, 60 flow [2023-10-12 17:21:19,957 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:21:19,957 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-10-12 17:21:19,957 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:21:19,957 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:21:19,959 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:21:19,959 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 places, 21 transitions, 60 flow [2023-10-12 17:21:19,960 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:21:19,960 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-10-12 17:21:19,960 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:21:19,960 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:21:19,963 INFO L748 eck$LassoCheckResult]: Stem: 45#[$Ultimate##0]true [100] $Ultimate##0-->L44: Formula: (= v_bankThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{bankThread1of1ForFork0_thidvar0=v_bankThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[bankThread1of1ForFork0_thidvar0] 47#[L44, L66]true [2023-10-12 17:21:19,963 INFO L750 eck$LassoCheckResult]: Loop: 47#[L44, L66]true [92] L44-->L44: Formula: (= (store (store v_B_7 (+ (- 1) v_i1_8) v_sum1_7) (+ (- 1) v_i2_12) v_sum2_11) v_B_5) InVars {sum1=v_sum1_7, i1=v_i1_8, sum2=v_sum2_11, i2=v_i2_12, B=v_B_7} OutVars{sum1=v_sum1_7, i1=v_i1_8, sum2=v_sum2_11, i2=v_i2_12, B=v_B_5} AuxVars[] AssignedVars[B] 47#[L44, L66]true [2023-10-12 17:21:19,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:19,967 INFO L85 PathProgramCache]: Analyzing trace with hash 131, now seen corresponding path program 1 times [2023-10-12 17:21:19,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:19,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130559437] [2023-10-12 17:21:19,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:19,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:20,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:20,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:20,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:20,084 INFO L85 PathProgramCache]: Analyzing trace with hash 123, now seen corresponding path program 1 times [2023-10-12 17:21:20,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:20,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552885484] [2023-10-12 17:21:20,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:20,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:20,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:20,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:20,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:20,114 INFO L85 PathProgramCache]: Analyzing trace with hash 4153, now seen corresponding path program 1 times [2023-10-12 17:21:20,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:20,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935561139] [2023-10-12 17:21:20,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:20,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:20,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:20,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:20,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:20,186 INFO L201 PluginConnector]: Adding new model sumsumsampleabs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:21:20 BoogieIcfgContainer [2023-10-12 17:21:20,186 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:21:20,188 INFO L158 Benchmark]: Toolchain (without parser) took 938.76ms. Allocated memory was 222.3MB in the beginning and 308.3MB in the end (delta: 86.0MB). Free memory was 171.5MB in the beginning and 277.1MB in the end (delta: -105.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:21:20,189 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.24ms. Allocated memory is still 222.3MB. Free memory is still 172.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:21:20,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.67ms. Allocated memory is still 222.3MB. Free memory was 171.3MB in the beginning and 169.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:21:20,190 INFO L158 Benchmark]: Boogie Preprocessor took 18.70ms. Allocated memory is still 222.3MB. Free memory was 169.9MB in the beginning and 168.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:21:20,191 INFO L158 Benchmark]: RCFGBuilder took 244.90ms. Allocated memory is still 222.3MB. Free memory was 168.7MB in the beginning and 157.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:21:20,193 INFO L158 Benchmark]: BuchiAutomizer took 650.24ms. Allocated memory was 222.3MB in the beginning and 308.3MB in the end (delta: 86.0MB). Free memory was 157.7MB in the beginning and 277.1MB in the end (delta: -119.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:21:20,198 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 0.24ms. Allocated memory is still 222.3MB. Free memory is still 172.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.67ms. Allocated memory is still 222.3MB. Free memory was 171.3MB in the beginning and 169.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.70ms. Allocated memory is still 222.3MB. Free memory was 169.9MB in the beginning and 168.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 244.90ms. Allocated memory is still 222.3MB. Free memory was 168.7MB in the beginning and 157.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 650.24ms. Allocated memory was 222.3MB in the beginning and 308.3MB in the end (delta: 86.0MB). Free memory was 157.7MB in the beginning and 277.1MB in the end (delta: -119.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 1 iterations. TraceHistogramMax:0. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 41]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L66] FORK 0 fork 1 bank(); Loop: [L45] B[i1 - 1] := sum1; [L46] B[i2 - 1] := sum2; End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 41]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L66] FORK 0 fork 1 bank(); Loop: [L45] B[i1 - 1] := sum1; [L46] B[i2 - 1] := sum2; End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 37 PlacesBefore, 30 PlacesAfterwards, 28 TransitionsBefore, 21 TransitionsAfterwards, 390 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 245, independent: 237, independent conditional: 0, independent unconditional: 237, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 179, independent: 175, independent conditional: 0, independent unconditional: 175, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 179, independent: 175, independent conditional: 0, independent unconditional: 175, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 245, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 179, unknown conditional: 0, unknown unconditional: 179] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be incorrect! [2023-10-12 17:21:20,223 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...