./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 33d006375056e7e3c58d58b776bed0fedce081ec4ff9e691f038a741177fe7dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:05:01,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:05:01,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 16:05:01,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:05:01,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:05:01,802 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:05:01,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:05:01,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:05:01,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:05:01,803 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:05:01,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:05:01,804 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:05:01,804 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:05:01,804 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 16:05:01,804 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 16:05:01,804 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 16:05:01,804 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 16:05:01,804 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 16:05:01,807 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 16:05:01,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:05:01,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 16:05:01,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:05:01,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:05:01,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 16:05:01,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 16:05:01,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 16:05:01,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:05:01,810 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:05:01,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:05:01,810 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 16:05:01,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:05:01,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:05:01,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:05:01,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:05:01,811 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:05:01,812 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 16:05:01,813 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33d006375056e7e3c58d58b776bed0fedce081ec4ff9e691f038a741177fe7dd [2024-11-13 16:05:02,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:05:02,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:05:02,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:05:02,209 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:05:02,209 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:05:02,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i Unable to find full path for "g++" [2024-11-13 16:05:04,504 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:05:04,768 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:05:04,769 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i [2024-11-13 16:05:04,777 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/data/3c0fdd552/67873debe856430983f3f1245142d30c/FLAGa207f6dc6 [2024-11-13 16:05:04,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/data/3c0fdd552/67873debe856430983f3f1245142d30c [2024-11-13 16:05:04,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:05:04,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:05:04,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:05:04,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:05:04,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:05:04,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:05:04" (1/1) ... [2024-11-13 16:05:04,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4104268c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:04, skipping insertion in model container [2024-11-13 16:05:04,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:05:04" (1/1) ... [2024-11-13 16:05:04,826 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:05:05,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:05:05,023 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:05:05,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:05:05,053 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:05:05,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05 WrapperNode [2024-11-13 16:05:05,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:05:05,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:05:05,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:05:05,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:05:05,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,090 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-11-13 16:05:05,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:05:05,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:05:05,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:05:05,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:05:05,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,106 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,125 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2024-11-13 16:05:05,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:05:05,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:05:05,153 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:05:05,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:05:05,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (1/1) ... [2024-11-13 16:05:05,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:05,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:05,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:05,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 16:05:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:05:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2024-11-13 16:05:05,253 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2024-11-13 16:05:05,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:05:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:05:05,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:05:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:05:05,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:05:05,347 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:05:05,350 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:05:05,541 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-13 16:05:05,541 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:05:05,559 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:05:05,559 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:05:05,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:05:05 BoogieIcfgContainer [2024-11-13 16:05:05,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:05:05,562 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 16:05:05,562 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 16:05:05,568 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 16:05:05,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 16:05:05,570 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 04:05:04" (1/3) ... [2024-11-13 16:05:05,571 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f6df658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 04:05:05, skipping insertion in model container [2024-11-13 16:05:05,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 16:05:05,572 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:05:05" (2/3) ... [2024-11-13 16:05:05,572 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f6df658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 04:05:05, skipping insertion in model container [2024-11-13 16:05:05,573 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 16:05:05,573 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:05:05" (3/3) ... [2024-11-13 16:05:05,575 INFO L333 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex3.i [2024-11-13 16:05:05,673 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 16:05:05,673 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 16:05:05,673 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 16:05:05,673 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 16:05:05,674 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 16:05:05,675 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 16:05:05,675 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 16:05:05,676 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 16:05:05,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:05:05,711 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-11-13 16:05:05,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:05:05,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:05:05,720 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 16:05:05,720 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:05,720 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 16:05:05,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:05:05,724 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-11-13 16:05:05,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:05:05,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:05:05,725 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 16:05:05,725 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:05,735 INFO L745 eck$LassoCheckResult]: Stem: 9#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet8#1, main_#t~ret9#1, main_~op~0#1.base, main_~op~0#1.offset, main_~i~0#1;havoc main_#t~nondet6#1;main_~i~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 8#L20-2true [2024-11-13 16:05:05,739 INFO L747 eck$LassoCheckResult]: Loop: 8#L20-2true assume !!(main_~i~0#1 > 0);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~nondet8#1;call write~int#0(main_#t~nondet8#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~nondet8#1; 10#L23true call main_#t~ret9#1 := rec(main_~op~0#1.base, main_~op~0#1.offset);< 11#$Ultimate##0true ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 7#L9true assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int#0(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 13#recFINALtrue assume true; 12#recEXITtrue >#29#return; 5#L23-1true main_~i~0#1 := main_~i~0#1 + main_#t~ret9#1;havoc main_~op~0#1.base, main_~op~0#1.offset;havoc main_#t~ret9#1; 8#L20-2true [2024-11-13 16:05:05,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:05,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2024-11-13 16:05:05,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:05,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225654307] [2024-11-13 16:05:05,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:05,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:05,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:05,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:05,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:05,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1339720656, now seen corresponding path program 1 times [2024-11-13 16:05:05,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:05,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673051467] [2024-11-13 16:05:05,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:05,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:05,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:06,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:06,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:06,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1926102834, now seen corresponding path program 1 times [2024-11-13 16:05:06,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:06,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201144022] [2024-11-13 16:05:06,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:06,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:06,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:06,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:06,889 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:05:06,892 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:05:06,893 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:05:06,894 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:05:06,894 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:05:06,894 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:06,894 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:05:06,894 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:05:06,895 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration1_Lasso [2024-11-13 16:05:06,895 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:05:06,895 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:05:06,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:06,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:06,927 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:06,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:06,936 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:06,940 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:07,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:07,009 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:07,013 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:07,131 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:05:07,136 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:05:07,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:07,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:07,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:07,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 16:05:07,145 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 [2024-11-13 16:05:07,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:07,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:07,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:07,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:07,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:07,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:07,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:07,173 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:07,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-13 16:05:07,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:07,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:07,198 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:07,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 16:05:07,203 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 [2024-11-13 16:05:07,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:07,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:07,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:07,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:07,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:07,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:07,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:07,228 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:07,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 16:05:07,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:07,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:07,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:07,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 16:05:07,257 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 [2024-11-13 16:05:07,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:07,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:07,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:07,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:07,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:07,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:07,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:07,280 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:07,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-13 16:05:07,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:07,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:07,302 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:07,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 16:05:07,304 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 [2024-11-13 16:05:07,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:07,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:07,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:07,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:07,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:07,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:07,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:07,323 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:07,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:07,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:07,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:07,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:07,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 16:05:07,346 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 [2024-11-13 16:05:07,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:07,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:07,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:07,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:07,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:07,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:07,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:07,367 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:07,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-13 16:05:07,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:07,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:07,387 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:07,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 16:05:07,390 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 [2024-11-13 16:05:07,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:07,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:07,405 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:05:07,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:07,426 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-11-13 16:05:07,426 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-13 16:05:07,449 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:07,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:07,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:07,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:07,474 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:07,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 16:05:07,481 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 [2024-11-13 16:05:07,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:07,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:07,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:07,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:07,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:07,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:07,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:07,510 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 16:05:07,520 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 16:05:07,523 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 16:05:07,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:07,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:07,528 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:07,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 16:05:07,531 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 16:05:07,531 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 16:05:07,531 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 16:05:07,532 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-13 16:05:07,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-13 16:05:07,550 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 16:05:07,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:05:07,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:05:07,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:07,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 16:05:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:07,861 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-13 16:05:07,863 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 16:05:07,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 16:05:08,071 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 58 states and 72 transitions. Complement of second has 20 states. [2024-11-13 16:05:08,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-13 16:05:08,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 16:05:08,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2024-11-13 16:05:08,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 2 letters. Loop has 7 letters. [2024-11-13 16:05:08,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:08,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 9 letters. Loop has 7 letters. [2024-11-13 16:05:08,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:08,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 2 letters. Loop has 14 letters. [2024-11-13 16:05:08,099 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:08,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 72 transitions. [2024-11-13 16:05:08,105 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2024-11-13 16:05:08,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 35 states and 42 transitions. [2024-11-13 16:05:08,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2024-11-13 16:05:08,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-11-13 16:05:08,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 42 transitions. [2024-11-13 16:05:08,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:05:08,118 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 42 transitions. [2024-11-13 16:05:08,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 42 transitions. [2024-11-13 16:05:08,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2024-11-13 16:05:08,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 16:05:08,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-13 16:05:08,160 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-13 16:05:08,160 INFO L424 stractBuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-13 16:05:08,160 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 16:05:08,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 38 transitions. [2024-11-13 16:05:08,161 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2024-11-13 16:05:08,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:05:08,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:05:08,165 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:08,165 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 16:05:08,165 INFO L745 eck$LassoCheckResult]: Stem: 158#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 159#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet8#1, main_#t~ret9#1, main_~op~0#1.base, main_~op~0#1.offset, main_~i~0#1;havoc main_#t~nondet6#1;main_~i~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 168#L20-2 assume !!(main_~i~0#1 > 0);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~nondet8#1;call write~int#0(main_#t~nondet8#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~nondet8#1; 146#L23 call main_#t~ret9#1 := rec(main_~op~0#1.base, main_~op~0#1.offset);< 156#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 145#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int#0(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int#0(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 147#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 160#$Ultimate##0 [2024-11-13 16:05:08,165 INFO L747 eck$LassoCheckResult]: Loop: 160#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 162#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int#0(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int#0(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 161#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 160#$Ultimate##0 [2024-11-13 16:05:08,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:08,168 INFO L85 PathProgramCache]: Analyzing trace with hash 556654377, now seen corresponding path program 1 times [2024-11-13 16:05:08,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:08,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112565643] [2024-11-13 16:05:08,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:08,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:08,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:08,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:08,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:08,214 INFO L85 PathProgramCache]: Analyzing trace with hash 29941, now seen corresponding path program 1 times [2024-11-13 16:05:08,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:08,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583063394] [2024-11-13 16:05:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:08,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:08,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:08,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:08,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:08,231 INFO L85 PathProgramCache]: Analyzing trace with hash 421815501, now seen corresponding path program 2 times [2024-11-13 16:05:08,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:08,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991321078] [2024-11-13 16:05:08,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:08,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:08,258 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:08,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:09,486 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:05:09,488 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:05:09,488 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:05:09,488 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:05:09,488 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:05:09,488 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:09,488 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:05:09,488 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:05:09,488 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration2_Lasso [2024-11-13 16:05:09,488 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:05:09,488 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:05:09,491 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,499 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,868 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:09,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:10,242 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:05:10,242 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:05:10,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:10,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:10,246 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:10,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-13 16:05:10,249 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 [2024-11-13 16:05:10,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:10,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:10,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:10,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:10,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:10,267 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:10,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:10,269 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:10,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:10,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:10,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:10,285 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:10,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-13 16:05:10,288 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 [2024-11-13 16:05:10,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:10,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:10,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:10,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:10,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:10,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:10,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:10,307 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:10,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-13 16:05:10,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:10,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:10,330 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:10,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-13 16:05:10,332 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 [2024-11-13 16:05:10,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:10,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:10,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:10,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:10,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:10,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:10,354 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:10,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-13 16:05:10,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:10,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:10,377 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:10,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-13 16:05:10,381 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 [2024-11-13 16:05:10,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:10,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:10,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:10,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:10,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:10,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:10,404 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:10,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-13 16:05:10,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:10,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:10,428 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:10,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-13 16:05:10,433 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 [2024-11-13 16:05:10,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:10,450 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2024-11-13 16:05:10,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:10,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:10,454 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2024-11-13 16:05:10,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:10,463 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:10,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:10,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:10,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:10,487 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:10,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-13 16:05:10,490 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 [2024-11-13 16:05:10,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:10,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:10,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:10,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:10,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:10,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:10,533 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 16:05:10,566 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2024-11-13 16:05:10,566 INFO L444 ModelExtractionUtils]: 2 out of 16 variables were initially zero. Simplification set additionally 11 variables to zero. [2024-11-13 16:05:10,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:10,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:10,569 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:10,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-13 16:05:10,571 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 16:05:10,588 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-13 16:05:10,588 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 16:05:10,588 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#0 rec_#in~p.base) 0)_1) = 2*v_rep(select (select #memory_int#0 rec_#in~p.base) 0)_1 + 1 Supporting invariants [] [2024-11-13 16:05:10,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-13 16:05:10,614 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2024-11-13 16:05:10,620 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-11-13 16:05:10,621 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-11-13 16:05:10,621 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[#in~p!base,]]] [2024-11-13 16:05:10,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:10,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 16:05:10,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:10,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:10,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 16:05:10,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:10,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2024-11-13 16:05:10,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:10,917 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2024-11-13 16:05:10,918 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 38 transitions. cyclomatic complexity: 10 Second operand has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:05:11,143 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 38 transitions. cyclomatic complexity: 10. Second operand has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 47 states and 56 transitions. Complement of second has 19 states. [2024-11-13 16:05:11,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 16:05:11,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:05:11,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 16 transitions. [2024-11-13 16:05:11,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 16 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-13 16:05:11,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:11,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2024-11-13 16:05:11,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:11,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 16 transitions. Stem has 7 letters. Loop has 6 letters. [2024-11-13 16:05:11,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:11,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 56 transitions. [2024-11-13 16:05:11,149 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-11-13 16:05:11,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 41 states and 50 transitions. [2024-11-13 16:05:11,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2024-11-13 16:05:11,151 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-11-13 16:05:11,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 50 transitions. [2024-11-13 16:05:11,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:05:11,151 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 50 transitions. [2024-11-13 16:05:11,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 50 transitions. [2024-11-13 16:05:11,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2024-11-13 16:05:11,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 28 states have internal predecessors, (32), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-13 16:05:11,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2024-11-13 16:05:11,157 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 46 transitions. [2024-11-13 16:05:11,157 INFO L424 stractBuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2024-11-13 16:05:11,157 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 16:05:11,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 46 transitions. [2024-11-13 16:05:11,158 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-11-13 16:05:11,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:05:11,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:05:11,159 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:11,159 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:11,159 INFO L745 eck$LassoCheckResult]: Stem: 325#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 326#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet8#1, main_#t~ret9#1, main_~op~0#1.base, main_~op~0#1.offset, main_~i~0#1;havoc main_#t~nondet6#1;main_~i~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 337#L20-2 assume !!(main_~i~0#1 > 0);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~nondet8#1;call write~int#0(main_#t~nondet8#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~nondet8#1; 321#L23 call main_#t~ret9#1 := rec(main_~op~0#1.base, main_~op~0#1.offset);< 347#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 346#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int#0(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int#0(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 317#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 329#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 330#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int#0(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 351#recFINAL assume true; 332#recEXIT >#27#return; 333#L15-1 #res := #t~ret5;havoc #t~ret5; 345#recFINAL assume true; 341#recEXIT >#29#return; 336#L23-1 [2024-11-13 16:05:11,159 INFO L747 eck$LassoCheckResult]: Loop: 336#L23-1 main_~i~0#1 := main_~i~0#1 + main_#t~ret9#1;havoc main_~op~0#1.base, main_~op~0#1.offset;havoc main_#t~ret9#1; 318#L20-2 assume !!(main_~i~0#1 > 0);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~nondet8#1;call write~int#0(main_#t~nondet8#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~nondet8#1; 319#L23 call main_#t~ret9#1 := rec(main_~op~0#1.base, main_~op~0#1.offset);< 327#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 342#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int#0(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 344#recFINAL assume true; 349#recEXIT >#29#return; 336#L23-1 [2024-11-13 16:05:11,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:11,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1894186140, now seen corresponding path program 1 times [2024-11-13 16:05:11,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:11,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469247247] [2024-11-13 16:05:11,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:11,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:11,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:11,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:11,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:11,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1440766090, now seen corresponding path program 2 times [2024-11-13 16:05:11,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:11,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324960766] [2024-11-13 16:05:11,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:11,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:11,280 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:11,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:11,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:11,306 INFO L85 PathProgramCache]: Analyzing trace with hash 402347643, now seen corresponding path program 1 times [2024-11-13 16:05:11,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:11,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343044423] [2024-11-13 16:05:11,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:11,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:11,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:11,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:12,608 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:05:12,608 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:05:12,608 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:05:12,608 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:05:12,609 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:05:12,609 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:12,609 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:05:12,609 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:05:12,609 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration3_Lasso [2024-11-13 16:05:12,609 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:05:12,609 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:05:12,611 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:12,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:12,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:12,818 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:12,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:12,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:13,046 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:05:13,046 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:05:13,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:13,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:13,048 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:13,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-13 16:05:13,054 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 [2024-11-13 16:05:13,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:13,065 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2024-11-13 16:05:13,065 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:05:13,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:13,074 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2024-11-13 16:05:13,074 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-13 16:05:13,090 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:13,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-13 16:05:13,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:13,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:13,113 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:13,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-13 16:05:13,116 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 [2024-11-13 16:05:13,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:13,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:13,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:13,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:13,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:13,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:13,138 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:13,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-13 16:05:13,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:13,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:13,161 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:13,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-13 16:05:13,164 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 [2024-11-13 16:05:13,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:13,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:13,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:13,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:13,183 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:13,183 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:13,188 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:13,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-13 16:05:13,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:13,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:13,212 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:13,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-13 16:05:13,216 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 [2024-11-13 16:05:13,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:13,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:13,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:13,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:13,236 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:13,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:13,249 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 16:05:13,270 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2024-11-13 16:05:13,270 INFO L444 ModelExtractionUtils]: 2 out of 16 variables were initially zero. Simplification set additionally 11 variables to zero. [2024-11-13 16:05:13,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:13,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:13,272 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:13,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-13 16:05:13,276 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 16:05:13,293 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-13 16:05:13,293 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 16:05:13,293 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#t~ret9#1) = 1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_#t~ret9#1 Supporting invariants [] [2024-11-13 16:05:13,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-13 16:05:13,318 INFO L156 tatePredicateManager]: 2 out of 2 supporting invariants were superfluous and have been removed [2024-11-13 16:05:13,321 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret9 [2024-11-13 16:05:13,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:13,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:05:13,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:13,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-13 16:05:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:13,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:05:13,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:13,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 16:05:13,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:13,700 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2024-11-13 16:05:13,700 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 46 transitions. cyclomatic complexity: 11 Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:05:13,840 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 46 transitions. cyclomatic complexity: 11. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Result 130 states and 152 transitions. Complement of second has 21 states. [2024-11-13 16:05:13,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-13 16:05:13,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 16:05:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 26 transitions. [2024-11-13 16:05:13,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 14 letters. Loop has 7 letters. [2024-11-13 16:05:13,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:13,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2024-11-13 16:05:13,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:13,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 14 letters. Loop has 14 letters. [2024-11-13 16:05:13,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:13,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 152 transitions. [2024-11-13 16:05:13,849 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2024-11-13 16:05:13,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 90 states and 105 transitions. [2024-11-13 16:05:13,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2024-11-13 16:05:13,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2024-11-13 16:05:13,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 105 transitions. [2024-11-13 16:05:13,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:05:13,853 INFO L218 hiAutomatonCegarLoop]: Abstraction has 90 states and 105 transitions. [2024-11-13 16:05:13,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 105 transitions. [2024-11-13 16:05:13,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2024-11-13 16:05:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 56 states have (on average 1.1785714285714286) internal successors, (66), 59 states have internal predecessors, (66), 13 states have call successors, (13), 11 states have call predecessors, (13), 13 states have return successors, (17), 11 states have call predecessors, (17), 13 states have call successors, (17) [2024-11-13 16:05:13,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2024-11-13 16:05:13,863 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 96 transitions. [2024-11-13 16:05:13,863 INFO L424 stractBuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2024-11-13 16:05:13,863 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 16:05:13,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 96 transitions. [2024-11-13 16:05:13,865 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2024-11-13 16:05:13,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:05:13,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:05:13,866 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:13,866 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 16:05:13,866 INFO L745 eck$LassoCheckResult]: Stem: 617#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 618#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet8#1, main_#t~ret9#1, main_~op~0#1.base, main_~op~0#1.offset, main_~i~0#1;havoc main_#t~nondet6#1;main_~i~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 629#L20-2 assume !!(main_~i~0#1 > 0);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~nondet8#1;call write~int#0(main_#t~nondet8#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~nondet8#1; 635#L23 call main_#t~ret9#1 := rec(main_~op~0#1.base, main_~op~0#1.offset);< 636#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 642#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int#0(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int#0(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 640#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 641#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 649#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int#0(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 660#recFINAL assume true; 639#recEXIT >#27#return; 638#L15-1 #res := #t~ret5;havoc #t~ret5; 637#recFINAL assume true; 634#recEXIT >#29#return; 633#L23-1 main_~i~0#1 := main_~i~0#1 + main_#t~ret9#1;havoc main_~op~0#1.base, main_~op~0#1.offset;havoc main_#t~ret9#1; 628#L20-2 assume !!(main_~i~0#1 > 0);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~nondet8#1;call write~int#0(main_#t~nondet8#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~nondet8#1; 613#L23 call main_#t~ret9#1 := rec(main_~op~0#1.base, main_~op~0#1.offset);< 614#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 681#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int#0(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int#0(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 610#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 619#$Ultimate##0 [2024-11-13 16:05:13,866 INFO L747 eck$LassoCheckResult]: Loop: 619#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 620#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int#0(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int#0(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 611#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 619#$Ultimate##0 [2024-11-13 16:05:13,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:13,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1372494316, now seen corresponding path program 2 times [2024-11-13 16:05:13,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:13,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712107729] [2024-11-13 16:05:13,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:13,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:13,893 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:13,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:13,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:13,915 INFO L85 PathProgramCache]: Analyzing trace with hash 29941, now seen corresponding path program 2 times [2024-11-13 16:05:13,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:13,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216179332] [2024-11-13 16:05:13,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:13,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:13,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:13,926 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:13,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:13,927 INFO L85 PathProgramCache]: Analyzing trace with hash 110490114, now seen corresponding path program 3 times [2024-11-13 16:05:13,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:13,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495314487] [2024-11-13 16:05:13,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:13,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:13,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:13,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:15,793 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:05:15,793 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:05:15,793 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:05:15,793 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:05:15,793 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:05:15,794 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:15,794 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:05:15,794 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:05:15,794 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration4_Lasso [2024-11-13 16:05:15,794 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:05:15,794 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:05:15,796 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:15,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:15,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:15,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:15,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:15,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:15,815 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,045 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:16,335 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:05:16,336 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:05:16,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,340 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-13 16:05:16,344 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 [2024-11-13 16:05:16,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:16,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:16,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:16,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:16,362 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:16,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-13 16:05:16,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,384 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-13 16:05:16,388 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 [2024-11-13 16:05:16,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:16,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:16,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:16,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:16,409 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:16,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:16,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,431 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-13 16:05:16,434 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 [2024-11-13 16:05:16,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:16,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:16,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:16,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:16,453 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:16,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:16,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,474 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-13 16:05:16,477 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 [2024-11-13 16:05:16,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:16,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:16,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:16,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:16,495 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:16,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:16,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,511 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-13 16:05:16,512 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 [2024-11-13 16:05:16,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:16,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:16,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:16,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:16,526 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:16,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-13 16:05:16,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,543 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-13 16:05:16,545 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 [2024-11-13 16:05:16,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:16,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:16,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:16,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:16,559 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:16,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-13 16:05:16,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,574 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-13 16:05:16,576 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 [2024-11-13 16:05:16,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:16,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:16,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:16,596 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:16,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-13 16:05:16,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,615 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-13 16:05:16,617 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 [2024-11-13 16:05:16,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:16,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:16,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:16,639 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:16,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-13 16:05:16,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,659 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-13 16:05:16,663 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 [2024-11-13 16:05:16,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:16,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,687 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:16,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:16,697 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:16,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:16,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,722 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-13 16:05:16,726 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 [2024-11-13 16:05:16,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,744 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2024-11-13 16:05:16,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,749 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2024-11-13 16:05:16,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:16,759 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:16,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-13 16:05:16,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,784 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-13 16:05:16,788 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 [2024-11-13 16:05:16,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:16,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,810 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:16,810 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:16,818 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:16,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:16,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,842 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-13 16:05:16,846 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 [2024-11-13 16:05:16,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:16,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:16,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:16,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:16,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:16,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:16,875 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 16:05:16,893 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2024-11-13 16:05:16,893 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-11-13 16:05:16,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:16,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:16,896 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:16,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-13 16:05:16,899 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 16:05:16,918 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-13 16:05:16,918 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 16:05:16,918 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#0 rec_#in~p.base) rec_#in~p.offset)_2) = 2*v_rep(select (select #memory_int#0 rec_#in~p.base) rec_#in~p.offset)_2 + 1 Supporting invariants [] [2024-11-13 16:05:16,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-13 16:05:16,942 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2024-11-13 16:05:16,943 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-11-13 16:05:16,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-11-13 16:05:16,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[#in~p!base,]]] [2024-11-13 16:05:16,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:17,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 16:05:17,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:17,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:17,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 16:05:17,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:17,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2024-11-13 16:05:17,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:17,293 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-11-13 16:05:17,294 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:05:17,422 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 106 states and 124 transitions. Complement of second has 17 states. [2024-11-13 16:05:17,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 16:05:17,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:05:17,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2024-11-13 16:05:17,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 20 letters. Loop has 3 letters. [2024-11-13 16:05:17,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:17,425 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 16:05:17,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:17,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 16:05:17,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:17,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 16:05:17,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:17,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2024-11-13 16:05:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:17,741 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2024-11-13 16:05:17,741 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:05:17,874 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 106 states and 124 transitions. Complement of second has 17 states. [2024-11-13 16:05:17,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 16:05:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:05:17,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2024-11-13 16:05:17,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 20 letters. Loop has 3 letters. [2024-11-13 16:05:17,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:17,878 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 16:05:17,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:17,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 16:05:17,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:18,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 16:05:18,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:18,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2024-11-13 16:05:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:18,188 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-11-13 16:05:18,189 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:05:18,331 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 154 states and 179 transitions. Complement of second has 19 states. [2024-11-13 16:05:18,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 16:05:18,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:05:18,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2024-11-13 16:05:18,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 20 letters. Loop has 3 letters. [2024-11-13 16:05:18,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:18,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 23 letters. Loop has 3 letters. [2024-11-13 16:05:18,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:18,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 20 letters. Loop has 6 letters. [2024-11-13 16:05:18,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:18,335 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 179 transitions. [2024-11-13 16:05:18,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 16:05:18,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 110 states and 135 transitions. [2024-11-13 16:05:18,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2024-11-13 16:05:18,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2024-11-13 16:05:18,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 135 transitions. [2024-11-13 16:05:18,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:05:18,344 INFO L218 hiAutomatonCegarLoop]: Abstraction has 110 states and 135 transitions. [2024-11-13 16:05:18,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 135 transitions. [2024-11-13 16:05:18,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 74. [2024-11-13 16:05:18,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.196078431372549) internal successors, (61), 54 states have internal predecessors, (61), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (16), 9 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-13 16:05:18,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2024-11-13 16:05:18,351 INFO L240 hiAutomatonCegarLoop]: Abstraction has 74 states and 87 transitions. [2024-11-13 16:05:18,351 INFO L424 stractBuchiCegarLoop]: Abstraction has 74 states and 87 transitions. [2024-11-13 16:05:18,352 INFO L331 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-13 16:05:18,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 87 transitions. [2024-11-13 16:05:18,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 16:05:18,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:05:18,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:05:18,354 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:18,354 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:18,354 INFO L745 eck$LassoCheckResult]: Stem: 1364#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1365#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet8#1, main_#t~ret9#1, main_~op~0#1.base, main_~op~0#1.offset, main_~i~0#1;havoc main_#t~nondet6#1;main_~i~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 1374#L20-2 assume !!(main_~i~0#1 > 0);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~nondet8#1;call write~int#0(main_#t~nondet8#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~nondet8#1; 1361#L23 call main_#t~ret9#1 := rec(main_~op~0#1.base, main_~op~0#1.offset);< 1363#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 1391#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int#0(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1375#recFINAL assume true; 1367#recEXIT >#29#return; 1368#L23-1 main_~i~0#1 := main_~i~0#1 + main_#t~ret9#1;havoc main_~op~0#1.base, main_~op~0#1.offset;havoc main_#t~ret9#1; 1358#L20-2 assume !!(main_~i~0#1 > 0);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~nondet8#1;call write~int#0(main_#t~nondet8#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~nondet8#1; 1359#L23 call main_#t~ret9#1 := rec(main_~op~0#1.base, main_~op~0#1.offset);< 1362#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 1399#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int#0(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int#0(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 1355#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 1369#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 1370#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int#0(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1424#recFINAL assume true; 1422#recEXIT >#27#return; 1405#L15-1 #res := #t~ret5;havoc #t~ret5; 1400#recFINAL assume true; 1380#recEXIT >#29#return; 1372#L23-1 [2024-11-13 16:05:18,356 INFO L747 eck$LassoCheckResult]: Loop: 1372#L23-1 main_~i~0#1 := main_~i~0#1 + main_#t~ret9#1;havoc main_~op~0#1.base, main_~op~0#1.offset;havoc main_#t~ret9#1; 1373#L20-2 assume !!(main_~i~0#1 > 0);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~nondet8#1;call write~int#0(main_#t~nondet8#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~nondet8#1; 1402#L23 call main_#t~ret9#1 := rec(main_~op~0#1.base, main_~op~0#1.offset);< 1406#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 1401#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int#0(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1403#recFINAL assume true; 1407#recEXIT >#29#return; 1372#L23-1 [2024-11-13 16:05:18,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:18,357 INFO L85 PathProgramCache]: Analyzing trace with hash -157269977, now seen corresponding path program 4 times [2024-11-13 16:05:18,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:18,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653487209] [2024-11-13 16:05:18,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:18,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:18,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:18,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:18,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:18,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1440766090, now seen corresponding path program 3 times [2024-11-13 16:05:18,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:18,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450063583] [2024-11-13 16:05:18,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:18,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:18,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:18,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:18,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:18,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1239150448, now seen corresponding path program 5 times [2024-11-13 16:05:18,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:18,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336601967] [2024-11-13 16:05:18,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:18,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:18,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:18,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:20,406 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:05:20,406 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:05:20,406 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:05:20,406 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:05:20,406 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:05:20,406 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:20,406 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:05:20,407 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:05:20,407 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration5_Lasso [2024-11-13 16:05:20,407 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:05:20,407 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:05:20,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:20,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:20,738 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:20,741 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:20,743 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:20,746 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:21,144 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:05:21,144 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:05:21,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:21,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:21,147 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:21,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-13 16:05:21,150 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 [2024-11-13 16:05:21,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:21,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:21,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:21,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:21,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:21,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:21,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:21,166 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:21,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-13 16:05:21,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:21,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:21,180 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:21,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-13 16:05:21,182 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 [2024-11-13 16:05:21,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:21,197 INFO L203 nArgumentSynthesizer]: 6 stem disjuncts [2024-11-13 16:05:21,197 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:05:21,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:21,214 INFO L401 nArgumentSynthesizer]: We have 36 Motzkin's Theorem applications. [2024-11-13 16:05:21,214 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-13 16:05:21,247 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:21,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-13 16:05:21,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:21,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:21,265 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:21,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-13 16:05:21,267 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 [2024-11-13 16:05:21,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:21,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:21,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:21,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:21,287 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:21,287 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:21,298 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 16:05:21,315 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-13 16:05:21,316 INFO L444 ModelExtractionUtils]: 2 out of 16 variables were initially zero. Simplification set additionally 11 variables to zero. [2024-11-13 16:05:21,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:21,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:21,318 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:21,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-13 16:05:21,322 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 16:05:21,341 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-13 16:05:21,341 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 16:05:21,342 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~ret9#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_#t~ret9#1 + 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-13 16:05:21,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-13 16:05:21,369 INFO L156 tatePredicateManager]: 2 out of 2 supporting invariants were superfluous and have been removed [2024-11-13 16:05:21,370 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret9 [2024-11-13 16:05:21,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:21,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:05:21,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:21,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:05:21,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:21,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 16:05:21,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:21,742 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2024-11-13 16:05:21,742 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 16:05:21,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-13 16:05:21,889 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 118 states and 139 transitions. Complement of second has 21 states. [2024-11-13 16:05:21,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-13 16:05:21,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 16:05:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 26 transitions. [2024-11-13 16:05:21,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2024-11-13 16:05:21,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:21,894 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 16:05:21,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:21,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:05:21,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:22,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:05:22,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:22,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 16:05:22,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:22,297 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 6 loop predicates [2024-11-13 16:05:22,298 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 16:05:22,449 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 118 states and 139 transitions. Complement of second has 21 states. [2024-11-13 16:05:22,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-13 16:05:22,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 16:05:22,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 26 transitions. [2024-11-13 16:05:22,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2024-11-13 16:05:22,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:22,453 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 16:05:22,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:22,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:05:22,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:22,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:05:22,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:22,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 16:05:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:05:22,853 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2024-11-13 16:05:22,854 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 16:05:22,985 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 143 states and 169 transitions. Complement of second has 22 states. [2024-11-13 16:05:22,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-13 16:05:22,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 16:05:22,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 28 transitions. [2024-11-13 16:05:22,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 28 transitions. Stem has 21 letters. Loop has 7 letters. [2024-11-13 16:05:22,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:22,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 28 transitions. Stem has 28 letters. Loop has 7 letters. [2024-11-13 16:05:22,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:22,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 28 transitions. Stem has 21 letters. Loop has 14 letters. [2024-11-13 16:05:22,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:22,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 143 states and 169 transitions. [2024-11-13 16:05:22,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-13 16:05:22,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 143 states to 94 states and 109 transitions. [2024-11-13 16:05:22,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2024-11-13 16:05:22,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2024-11-13 16:05:22,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 109 transitions. [2024-11-13 16:05:22,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:05:22,998 INFO L218 hiAutomatonCegarLoop]: Abstraction has 94 states and 109 transitions. [2024-11-13 16:05:22,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 109 transitions. [2024-11-13 16:05:23,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 32. [2024-11-13 16:05:23,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-13 16:05:23,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-13 16:05:23,003 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-13 16:05:23,004 INFO L424 stractBuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-13 16:05:23,004 INFO L331 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-13 16:05:23,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 38 transitions. [2024-11-13 16:05:23,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-13 16:05:23,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:05:23,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:05:23,005 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 16:05:23,006 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:23,006 INFO L745 eck$LassoCheckResult]: Stem: 2190#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2191#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet8#1, main_#t~ret9#1, main_~op~0#1.base, main_~op~0#1.offset, main_~i~0#1;havoc main_#t~nondet6#1;main_~i~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 2199#L20-2 assume !!(main_~i~0#1 > 0);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~nondet8#1;call write~int#0(main_#t~nondet8#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~nondet8#1; 2186#L23 [2024-11-13 16:05:23,006 INFO L747 eck$LassoCheckResult]: Loop: 2186#L23 call main_#t~ret9#1 := rec(main_~op~0#1.base, main_~op~0#1.offset);< 2188#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 2202#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int#0(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int#0(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 2183#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 2192#$Ultimate##0 ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int#0(~p.base, ~p.offset, 4); 2194#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int#0(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 2207#recFINAL assume true; 2205#recEXIT >#27#return; 2204#L15-1 #res := #t~ret5;havoc #t~ret5; 2203#recFINAL assume true; 2201#recEXIT >#29#return; 2198#L23-1 main_~i~0#1 := main_~i~0#1 + main_#t~ret9#1;havoc main_~op~0#1.base, main_~op~0#1.offset;havoc main_#t~ret9#1; 2185#L20-2 assume !!(main_~i~0#1 > 0);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnHeap(4);main_~op~0#1.base, main_~op~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~malloc7#1.base, main_#t~malloc7#1.offset;havoc main_#t~nondet8#1;call write~int#0(main_#t~nondet8#1, main_~op~0#1.base, main_~op~0#1.offset, 4);havoc main_#t~nondet8#1; 2186#L23 [2024-11-13 16:05:23,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:23,006 INFO L85 PathProgramCache]: Analyzing trace with hash 37807, now seen corresponding path program 1 times [2024-11-13 16:05:23,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:23,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862076435] [2024-11-13 16:05:23,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:23,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:23,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:23,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:23,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:23,020 INFO L85 PathProgramCache]: Analyzing trace with hash -208342776, now seen corresponding path program 1 times [2024-11-13 16:05:23,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:23,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159396898] [2024-11-13 16:05:23,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:23,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:23,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:23,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:23,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:23,047 INFO L85 PathProgramCache]: Analyzing trace with hash -753252326, now seen corresponding path program 6 times [2024-11-13 16:05:23,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:23,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271352448] [2024-11-13 16:05:23,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:23,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:23,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:05:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:05:23,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:05:23,884 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:05:23,884 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:05:23,884 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:05:23,884 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:05:23,884 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:05:23,884 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:23,884 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:05:23,885 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:05:23,885 INFO L132 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration6_Lasso [2024-11-13 16:05:23,885 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:05:23,885 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:05:23,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:24,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:24,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:24,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:24,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:24,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:24,040 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:24,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:05:24,230 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:05:24,230 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:05:24,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:24,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:24,233 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:24,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-13 16:05:24,235 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 [2024-11-13 16:05:24,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:24,249 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2024-11-13 16:05:24,249 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:05:24,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:24,255 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2024-11-13 16:05:24,255 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-13 16:05:24,277 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:24,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-13 16:05:24,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:24,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:24,305 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:24,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-13 16:05:24,309 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 [2024-11-13 16:05:24,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:24,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:24,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:24,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:24,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:24,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:24,335 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:24,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-13 16:05:24,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:24,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:24,361 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:24,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-13 16:05:24,365 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 [2024-11-13 16:05:24,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:24,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:24,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:24,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:24,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:24,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:24,391 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:24,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-13 16:05:24,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:24,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:24,410 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:24,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-13 16:05:24,412 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 [2024-11-13 16:05:24,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:24,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:24,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:24,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:24,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:24,428 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:24,433 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:24,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-13 16:05:24,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:24,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:24,450 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:24,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-13 16:05:24,453 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 [2024-11-13 16:05:24,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:24,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:24,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:24,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:24,472 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:24,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:24,477 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:24,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-13 16:05:24,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:24,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:24,493 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:24,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-13 16:05:24,496 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 [2024-11-13 16:05:24,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:24,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:24,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:24,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:24,514 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:24,514 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:24,520 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:24,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-13 16:05:24,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:24,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:24,537 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:24,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-13 16:05:24,539 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 [2024-11-13 16:05:24,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:24,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:24,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:24,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:24,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:24,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:24,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:24,556 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:24,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-13 16:05:24,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:24,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:24,574 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:24,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-13 16:05:24,575 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 [2024-11-13 16:05:24,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:24,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:05:24,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:24,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:24,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:24,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:05:24,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:05:24,593 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:05:24,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-13 16:05:24,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:24,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:24,609 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:24,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-13 16:05:24,611 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 [2024-11-13 16:05:24,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:05:24,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:05:24,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:05:24,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:05:24,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:05:24,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:05:24,632 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 16:05:24,638 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2024-11-13 16:05:24,638 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-13 16:05:24,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:05:24,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:24,653 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:05:24,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-13 16:05:24,655 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 16:05:24,670 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-13 16:05:24,670 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 16:05:24,670 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-13 16:05:24,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-13 16:05:24,689 INFO L156 tatePredicateManager]: 2 out of 2 supporting invariants were superfluous and have been removed [2024-11-13 16:05:24,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:24,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:05:24,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:24,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 16:05:24,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:24,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 16:05:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 16:05:24,895 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2024-11-13 16:05:24,895 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 38 transitions. cyclomatic complexity: 8 Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:05:25,008 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 38 transitions. cyclomatic complexity: 8. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 69 states and 86 transitions. Complement of second has 22 states. [2024-11-13 16:05:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-13 16:05:25,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:05:25,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2024-11-13 16:05:25,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 14 transitions. Stem has 3 letters. Loop has 13 letters. [2024-11-13 16:05:25,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:25,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 14 transitions. Stem has 16 letters. Loop has 13 letters. [2024-11-13 16:05:25,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:25,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 14 transitions. Stem has 3 letters. Loop has 26 letters. [2024-11-13 16:05:25,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:05:25,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 86 transitions. [2024-11-13 16:05:25,017 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 16:05:25,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 0 states and 0 transitions. [2024-11-13 16:05:25,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 16:05:25,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 16:05:25,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 16:05:25,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 16:05:25,018 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 16:05:25,018 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 16:05:25,018 INFO L424 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 16:05:25,019 INFO L331 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-13 16:05:25,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-13 16:05:25,019 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 16:05:25,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-13 16:05:25,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 04:05:25 BoogieIcfgContainer [2024-11-13 16:05:25,029 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 16:05:25,029 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:05:25,030 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:05:25,030 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:05:25,031 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:05:05" (3/4) ... [2024-11-13 16:05:25,034 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:05:25,035 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:05:25,036 INFO L158 Benchmark]: Toolchain (without parser) took 20237.10ms. Allocated memory was 109.1MB in the beginning and 167.8MB in the end (delta: 58.7MB). Free memory was 83.7MB in the beginning and 112.7MB in the end (delta: -29.0MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2024-11-13 16:05:25,036 INFO L158 Benchmark]: CDTParser took 0.88ms. Allocated memory is still 83.9MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:05:25,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.51ms. Allocated memory is still 109.1MB. Free memory was 83.7MB in the beginning and 73.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:05:25,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.22ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 72.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:05:25,037 INFO L158 Benchmark]: Boogie Preprocessor took 56.70ms. Allocated memory is still 109.1MB. Free memory was 72.3MB in the beginning and 71.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:05:25,038 INFO L158 Benchmark]: RCFGBuilder took 407.66ms. Allocated memory is still 109.1MB. Free memory was 71.2MB in the beginning and 61.6MB in the end (delta: 9.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:05:25,038 INFO L158 Benchmark]: BuchiAutomizer took 19467.11ms. Allocated memory was 109.1MB in the beginning and 167.8MB in the end (delta: 58.7MB). Free memory was 61.6MB in the beginning and 112.7MB in the end (delta: -51.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2024-11-13 16:05:25,038 INFO L158 Benchmark]: Witness Printer took 5.36ms. Allocated memory is still 167.8MB. Free memory was 112.7MB in the beginning and 112.7MB in the end (delta: 22.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:05:25,040 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88ms. Allocated memory is still 83.9MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.51ms. Allocated memory is still 109.1MB. Free memory was 83.7MB in the beginning and 73.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.22ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 72.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.70ms. Allocated memory is still 109.1MB. Free memory was 72.3MB in the beginning and 71.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 407.66ms. Allocated memory is still 109.1MB. Free memory was 71.2MB in the beginning and 61.6MB in the end (delta: 9.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 19467.11ms. Allocated memory was 109.1MB in the beginning and 167.8MB in the end (delta: 58.7MB). Free memory was 61.6MB in the beginning and 112.7MB in the end (delta: -51.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Witness Printer took 5.36ms. Allocated memory is still 167.8MB. Free memory was 112.7MB in the beginning and 112.7MB in the end (delta: 22.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[#in~p!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~ret9 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[#in~p!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~ret9 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function i and consists of 8 locations. One deterministic module has affine ranking function null and consists of 8 locations. One deterministic module has affine ranking function null and consists of 8 locations. One deterministic module has affine ranking function i and consists of 8 locations. One nondeterministic module has affine ranking function null and consists of 6 locations. One nondeterministic module has affine ranking function null and consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 19.3s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 14.2s. Construction of modules took 0.6s. Büchi inclusion checks took 4.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 111 StatesRemovedByMinimization, 5 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, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 4/4 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 166 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 245 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 416 IncrementalHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 121 mSDtfsCounter, 416 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital147 mio100 ax100 hnf100 lsp133 ukn51 mio100 lsp38 div100 bol100 ite100 ukn100 eq162 hnf94 smp100 dnf159 smp88 tf100 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 68ms VariablesStem: 5 VariablesLoop: 4 DisjunctsStem: 6 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 36 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-13 16:05:25,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:25,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1b591cd-fce3-45ec-b5ca-e2d68918e848/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE