/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/POPL2023/min-max-sample.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:12:32,189 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:12:32,271 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 17:12:32,303 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:12:32,304 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:12:32,305 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:12:32,306 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:12:32,307 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:12:32,307 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:12:32,311 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:12:32,311 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:12:32,312 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:12:32,312 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:12:32,313 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:12:32,314 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:12:32,314 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:12:32,314 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:12:32,315 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:12:32,315 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:12:32,315 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:12:32,315 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:12:32,316 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:12:32,317 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:12:32,317 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:12:32,317 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:12:32,318 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:12:32,318 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:12:32,318 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:12:32,318 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:12:32,319 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:12:32,319 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:12:32,320 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:12:32,320 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:12:32,321 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:12:32,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:12:32,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:12:32,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:12:32,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:12:32,572 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:12:32,573 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:12:32,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample.bpl [2023-10-12 17:12:32,575 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample.bpl' [2023-10-12 17:12:32,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:12:32,612 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:12:32,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:32,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:12:32,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:12:32,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/1) ... [2023-10-12 17:12:32,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/1) ... [2023-10-12 17:12:32,637 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:12:32,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:12:32,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:12:32,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:12:32,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:12:32,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/1) ... [2023-10-12 17:12:32,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/1) ... [2023-10-12 17:12:32,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/1) ... [2023-10-12 17:12:32,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/1) ... [2023-10-12 17:12:32,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/1) ... [2023-10-12 17:12:32,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/1) ... [2023-10-12 17:12:32,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/1) ... [2023-10-12 17:12:32,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/1) ... [2023-10-12 17:12:32,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:12:32,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:12:32,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:12:32,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:12:32,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/1) ... [2023-10-12 17:12:32,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:12:32,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:12:32,694 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 17:12:32,709 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 17:12:32,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMax given in one single declaration [2023-10-12 17:12:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure computeMax [2023-10-12 17:12:32,738 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMax [2023-10-12 17:12:32,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:12:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:12:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:12:32,739 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sample given in one single declaration [2023-10-12 17:12:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure sample [2023-10-12 17:12:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure sample [2023-10-12 17:12:32,739 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMin given in one single declaration [2023-10-12 17:12:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure computeMin [2023-10-12 17:12:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMin [2023-10-12 17:12:32,741 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 17:12:32,786 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:12:32,788 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:12:32,914 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:12:32,927 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:12:32,927 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-10-12 17:12:32,929 INFO L201 PluginConnector]: Adding new model min-max-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:32 BoogieIcfgContainer [2023-10-12 17:12:32,929 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:12:32,930 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:12:32,930 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:12:32,933 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:12:32,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:32,934 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:12:32" (1/2) ... [2023-10-12 17:12:32,936 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@797df85b and model type min-max-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:12:32, skipping insertion in model container [2023-10-12 17:12:32,936 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:12:32,936 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "min-max-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:12:32" (2/2) ... [2023-10-12 17:12:32,937 INFO L332 chiAutomizerObserver]: Analyzing ICFG min-max-sample.bpl [2023-10-12 17:12:33,017 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:12:33,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 79 flow [2023-10-12 17:12:33,075 INFO L124 PetriNetUnfolderBase]: 3/23 cut-off events. [2023-10-12 17:12:33,076 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:12:33,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 23 events. 3/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 39 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-10-12 17:12:33,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 79 flow [2023-10-12 17:12:33,106 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 23 transitions, 61 flow [2023-10-12 17:12:33,110 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:12:33,136 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 23 transitions, 61 flow [2023-10-12 17:12:33,138 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 23 transitions, 61 flow [2023-10-12 17:12:33,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 23 transitions, 61 flow [2023-10-12 17:12:33,144 INFO L124 PetriNetUnfolderBase]: 3/23 cut-off events. [2023-10-12 17:12:33,144 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:12:33,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 23 events. 3/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 39 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-10-12 17:12:33,149 INFO L119 LiptonReduction]: Number of co-enabled transitions 222 [2023-10-12 17:12:33,301 INFO L134 LiptonReduction]: Checked pairs total: 214 [2023-10-12 17:12:33,302 INFO L136 LiptonReduction]: Total number of compositions: 5 [2023-10-12 17:12:33,322 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:12:33,322 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:12:33,322 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:12:33,322 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:12:33,323 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:12:33,323 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:12:33,323 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:12:33,323 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:12:33,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:12:33,388 INFO L131 ngComponentsAnalysis]: Automaton has 39 accepting balls. 62 [2023-10-12 17:12:33,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:33,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:33,393 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:12:33,393 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:12:33,393 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:12:33,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 89 states, but on-demand construction may add more states [2023-10-12 17:12:33,399 INFO L131 ngComponentsAnalysis]: Automaton has 39 accepting balls. 62 [2023-10-12 17:12:33,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:12:33,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:12:33,400 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:12:33,400 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-10-12 17:12:33,405 INFO L748 eck$LassoCheckResult]: Stem: 36#[$Ultimate##0]don't care [78] $Ultimate##0-->$Ultimate##0: Formula: (= v_computeMinThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{computeMinThread1of1ForFork0_thidvar0=v_computeMinThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[computeMinThread1of1ForFork0_thidvar0] 39#[$Ultimate##0, L68]don't care [81] L68-->$Ultimate##0: Formula: (and (= v_computeMaxThread1of1ForFork1_thidvar0_2 2) (= v_computeMaxThread1of1ForFork1_thidvar1_2 2)) InVars {} OutVars{computeMaxThread1of1ForFork1_thidvar0=v_computeMaxThread1of1ForFork1_thidvar0_2, computeMaxThread1of1ForFork1_thidvar1=v_computeMaxThread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[computeMaxThread1of1ForFork1_thidvar0, computeMaxThread1of1ForFork1_thidvar1] 41#[$Ultimate##0, L69, $Ultimate##0]don't care [84] L69-->L59: Formula: (and (= v_sampleThread1of1ForFork2_thidvar0_2 3) (= v_sampleThread1of1ForFork2_thidvar2_2 3) (= v_sampleThread1of1ForFork2_thidvar1_2 3)) InVars {} OutVars{sampleThread1of1ForFork2_thidvar0=v_sampleThread1of1ForFork2_thidvar0_2, sampleThread1of1ForFork2_thidvar2=v_sampleThread1of1ForFork2_thidvar2_2, sampleThread1of1ForFork2_thidvar1=v_sampleThread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[sampleThread1of1ForFork2_thidvar0, sampleThread1of1ForFork2_thidvar2, sampleThread1of1ForFork2_thidvar1] 45#[$Ultimate##0, $Ultimate##0, L59, L70]don't care [2023-10-12 17:12:33,406 INFO L750 eck$LassoCheckResult]: Loop: 45#[$Ultimate##0, $Ultimate##0, L59, L70]don't care [68] L59-->L61: Formula: (= v_min_samples_1 (store v_min_samples_2 (+ (- 1) v_i1_1) v_array_min_3)) InVars {min_samples=v_min_samples_2, i1=v_i1_1, array_min=v_array_min_3} OutVars{min_samples=v_min_samples_1, i1=v_i1_1, array_min=v_array_min_3} AuxVars[] AssignedVars[min_samples] 55#[$Ultimate##0, $Ultimate##0, L61, L70]don't care [69] L61-->L59: Formula: (= (store v_max_samples_2 (+ (- 1) v_i2_7) v_array_max_6) v_max_samples_1) InVars {i2=v_i2_7, array_max=v_array_max_6, max_samples=v_max_samples_2} OutVars{i2=v_i2_7, array_max=v_array_max_6, max_samples=v_max_samples_1} AuxVars[] AssignedVars[max_samples] 45#[$Ultimate##0, $Ultimate##0, L59, L70]don't care [2023-10-12 17:12:33,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:33,411 INFO L85 PathProgramCache]: Analyzing trace with hash 107344, now seen corresponding path program 1 times [2023-10-12 17:12:33,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:33,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474042194] [2023-10-12 17:12:33,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:33,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:33,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:33,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:33,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:33,537 INFO L85 PathProgramCache]: Analyzing trace with hash 3138, now seen corresponding path program 1 times [2023-10-12 17:12:33,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:33,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555558579] [2023-10-12 17:12:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:33,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:33,546 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:33,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:33,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:12:33,553 INFO L85 PathProgramCache]: Analyzing trace with hash 103159761, now seen corresponding path program 1 times [2023-10-12 17:12:33,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:12:33,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094197988] [2023-10-12 17:12:33,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:12:33,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:12:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:33,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:33,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:12:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:33,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:12:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:12:33,742 INFO L201 PluginConnector]: Adding new model min-max-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:12:33 BoogieIcfgContainer [2023-10-12 17:12:33,742 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:12:33,743 INFO L158 Benchmark]: Toolchain (without parser) took 1130.91ms. Allocated memory was 203.4MB in the beginning and 292.6MB in the end (delta: 89.1MB). Free memory was 156.7MB in the beginning and 255.8MB in the end (delta: -99.0MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:12:33,744 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.27ms. Allocated memory is still 203.4MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:12:33,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.74ms. Allocated memory is still 203.4MB. Free memory was 156.7MB in the beginning and 155.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:12:33,745 INFO L158 Benchmark]: Boogie Preprocessor took 20.33ms. Allocated memory is still 203.4MB. Free memory was 155.2MB in the beginning and 154.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:12:33,745 INFO L158 Benchmark]: RCFGBuilder took 268.58ms. Allocated memory is still 203.4MB. Free memory was 154.0MB in the beginning and 144.1MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:12:33,746 INFO L158 Benchmark]: BuchiAutomizer took 811.89ms. Allocated memory was 203.4MB in the beginning and 292.6MB in the end (delta: 89.1MB). Free memory was 144.1MB in the beginning and 255.8MB in the end (delta: -111.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:12:33,748 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 0.27ms. Allocated memory is still 203.4MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.74ms. Allocated memory is still 203.4MB. Free memory was 156.7MB in the beginning and 155.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.33ms. Allocated memory is still 203.4MB. Free memory was 155.2MB in the beginning and 154.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 268.58ms. Allocated memory is still 203.4MB. Free memory was 154.0MB in the beginning and 144.1MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 811.89ms. Allocated memory was 203.4MB in the beginning and 292.6MB in the end (delta: 89.1MB). Free memory was 144.1MB in the beginning and 255.8MB in the end (delta: -111.7MB). 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 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. 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: 59]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L68] FORK 0 fork 1 computeMin(); [L69] FORK 0 fork 2, 2 computeMax(); [L70] FORK 0 fork 3, 3, 3 sample(); Loop: [L60] min_samples[i1 - 1] := array_min; [L61] max_samples[i2 - 1] := array_max; End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 59]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L68] FORK 0 fork 1 computeMin(); [L69] FORK 0 fork 2, 2 computeMax(); [L70] FORK 0 fork 3, 3, 3 sample(); Loop: [L60] min_samples[i1 - 1] := array_min; [L61] max_samples[i2 - 1] := array_max; End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 30 PlacesBefore, 25 PlacesAfterwards, 23 TransitionsBefore, 18 TransitionsAfterwards, 222 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 214 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 123, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 98, independent: 91, independent conditional: 0, independent unconditional: 91, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 98, independent: 91, independent conditional: 0, independent unconditional: 91, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 123, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 98, unknown conditional: 0, unknown unconditional: 98] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, 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 17:12:33,778 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...