./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5247496942546516118f3c28fa350944e097bdf15ee64734ca287a29ad51a034 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:20:54,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:20:54,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-24 00:20:54,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:20:54,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:20:54,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:20:54,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:20:54,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:20:54,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:20:54,873 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:20:54,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:20:54,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:20:54,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:20:54,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:20:54,874 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:20:54,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:20:54,874 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:20:54,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:20:54,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:20:54,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:20:54,875 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-24 00:20:54,875 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-24 00:20:54,875 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-24 00:20:54,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:20:54,875 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:20:54,875 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:20:54,875 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:20:54,875 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:20:54,878 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:20:54,878 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:20:54,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:20:54,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:20:54,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:20:54,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:20:54,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:20:54,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:20:54,880 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:20:54,880 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:20:54,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:20:54,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:20:54,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:20:54,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:20:54,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:20:54,881 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:20:54,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:20:54,882 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:20:54,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:20:54,882 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC 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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5247496942546516118f3c28fa350944e097bdf15ee64734ca287a29ad51a034 [2024-11-24 00:20:55,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:20:55,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:20:55,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:20:55,291 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:20:55,292 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:20:55,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2024-11-24 00:20:58,456 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/data/482866612/023df098abb74ba688df69bced44cfd2/FLAGff11622e9 [2024-11-24 00:20:58,911 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:20:58,915 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2024-11-24 00:20:58,935 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/data/482866612/023df098abb74ba688df69bced44cfd2/FLAGff11622e9 [2024-11-24 00:20:58,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/data/482866612/023df098abb74ba688df69bced44cfd2 [2024-11-24 00:20:58,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:20:58,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:20:58,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:20:58,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:20:58,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:20:58,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:20:58" (1/1) ... [2024-11-24 00:20:58,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b674da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:58, skipping insertion in model container [2024-11-24 00:20:58,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:20:58" (1/1) ... [2024-11-24 00:20:59,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:20:59,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:20:59,493 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:20:59,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:20:59,572 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:20:59,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59 WrapperNode [2024-11-24 00:20:59,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:20:59,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:20:59,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:20:59,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:20:59,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,619 INFO L138 Inliner]: procedures = 126, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 138 [2024-11-24 00:20:59,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:20:59,620 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:20:59,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:20:59,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:20:59,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,651 INFO L175 MemorySlicer]: Split 15 memory accesses to 2 slices as follows [2, 13]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 8 writes are split as follows [0, 8]. [2024-11-24 00:20:59,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,659 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,660 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:20:59,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:20:59,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:20:59,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:20:59,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (1/1) ... [2024-11-24 00:20:59,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:20:59,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:20:59,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:20:59,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:20:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:20:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:20:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:20:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:20:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2024-11-24 00:20:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2024-11-24 00:20:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 00:20:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:20:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 00:20:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 00:20:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 00:20:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 00:20:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:20:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:20:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:20:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:20:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:20:59,977 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:20:59,980 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:21:00,497 INFO L? ?]: Removed 104 outVars from TransFormulas that were not future-live. [2024-11-24 00:21:00,497 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:21:00,520 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:21:00,522 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-24 00:21:00,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:21:00 BoogieIcfgContainer [2024-11-24 00:21:00,522 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:21:00,526 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:21:00,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:21:00,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:21:00,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:20:58" (1/3) ... [2024-11-24 00:21:00,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18093cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:21:00, skipping insertion in model container [2024-11-24 00:21:00,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:20:59" (2/3) ... [2024-11-24 00:21:00,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18093cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:21:00, skipping insertion in model container [2024-11-24 00:21:00,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:21:00" (3/3) ... [2024-11-24 00:21:00,537 INFO L128 eAbstractionObserver]: Analyzing ICFG dll2c_update_all_reverse.i [2024-11-24 00:21:00,557 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:21:00,559 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dll2c_update_all_reverse.i that has 2 procedures, 96 locations, 1 initial locations, 6 loop locations, and 34 error locations. [2024-11-24 00:21:00,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:21:00,630 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2928d10d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:21:00,631 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-24 00:21:00,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 58 states have (on average 1.8793103448275863) internal successors, (109), 92 states have internal predecessors, (109), 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) [2024-11-24 00:21:00,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-24 00:21:00,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:00,643 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-24 00:21:00,644 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting node_createErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:00,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:00,650 INFO L85 PathProgramCache]: Analyzing trace with hash 895210802, now seen corresponding path program 1 times [2024-11-24 00:21:00,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:00,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112187924] [2024-11-24 00:21:00,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:00,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:00,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:00,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:00,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112187924] [2024-11-24 00:21:00,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112187924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:00,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:00,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:21:00,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336564692] [2024-11-24 00:21:00,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:00,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:21:00,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:01,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:21:01,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:21:01,018 INFO L87 Difference]: Start difference. First operand has 96 states, 58 states have (on average 1.8793103448275863) internal successors, (109), 92 states have internal predecessors, (109), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:21:01,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:01,168 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2024-11-24 00:21:01,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:21:01,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-24 00:21:01,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:01,178 INFO L225 Difference]: With dead ends: 92 [2024-11-24 00:21:01,179 INFO L226 Difference]: Without dead ends: 89 [2024-11-24 00:21:01,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:21:01,184 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 3 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:01,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 155 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:21:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-24 00:21:01,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-24 00:21:01,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 55 states have (on average 1.690909090909091) internal successors, (93), 85 states have internal predecessors, (93), 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) [2024-11-24 00:21:01,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2024-11-24 00:21:01,232 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 6 [2024-11-24 00:21:01,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:01,232 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2024-11-24 00:21:01,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:21:01,233 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2024-11-24 00:21:01,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-24 00:21:01,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:01,233 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-24 00:21:01,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:21:01,234 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting node_createErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:01,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:01,236 INFO L85 PathProgramCache]: Analyzing trace with hash 895210803, now seen corresponding path program 1 times [2024-11-24 00:21:01,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:01,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062080836] [2024-11-24 00:21:01,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:01,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:01,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:01,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:01,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062080836] [2024-11-24 00:21:01,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062080836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:01,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:01,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:21:01,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38813895] [2024-11-24 00:21:01,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:01,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:21:01,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:01,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:21:01,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:21:01,477 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:21:01,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:01,588 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2024-11-24 00:21:01,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:21:01,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-24 00:21:01,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:01,589 INFO L225 Difference]: With dead ends: 86 [2024-11-24 00:21:01,589 INFO L226 Difference]: Without dead ends: 86 [2024-11-24 00:21:01,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:21:01,591 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 3 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:01,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 156 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:21:01,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-24 00:21:01,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-24 00:21:01,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 55 states have (on average 1.6363636363636365) internal successors, (90), 82 states have internal predecessors, (90), 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) [2024-11-24 00:21:01,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2024-11-24 00:21:01,598 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 6 [2024-11-24 00:21:01,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:01,598 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2024-11-24 00:21:01,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:21:01,599 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2024-11-24 00:21:01,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 00:21:01,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:01,599 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:01,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:21:01,599 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:01,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:01,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1540658062, now seen corresponding path program 1 times [2024-11-24 00:21:01,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:01,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426654236] [2024-11-24 00:21:01,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:01,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:01,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:01,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:01,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426654236] [2024-11-24 00:21:01,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426654236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:01,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:01,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:21:01,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730079659] [2024-11-24 00:21:01,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:01,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:21:01,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:01,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:21:01,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:21:01,733 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-24 00:21:01,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:01,755 INFO L93 Difference]: Finished difference Result 97 states and 107 transitions. [2024-11-24 00:21:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:21:01,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 14 [2024-11-24 00:21:01,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:01,757 INFO L225 Difference]: With dead ends: 97 [2024-11-24 00:21:01,757 INFO L226 Difference]: Without dead ends: 97 [2024-11-24 00:21:01,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:21:01,758 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 10 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:01,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 179 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:21:01,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-24 00:21:01,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 87. [2024-11-24 00:21:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 56 states have (on average 1.625) internal successors, (91), 83 states have internal predecessors, (91), 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) [2024-11-24 00:21:01,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2024-11-24 00:21:01,777 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 14 [2024-11-24 00:21:01,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:01,778 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2024-11-24 00:21:01,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-24 00:21:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2024-11-24 00:21:01,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-24 00:21:01,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:01,779 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:01,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:21:01,779 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:01,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:01,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1060976285, now seen corresponding path program 1 times [2024-11-24 00:21:01,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:01,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110173198] [2024-11-24 00:21:01,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:01,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 00:21:02,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:02,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110173198] [2024-11-24 00:21:02,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110173198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:02,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:02,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:21:02,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587234229] [2024-11-24 00:21:02,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:02,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:21:02,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:02,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:21:02,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:21:02,091 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:02,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:02,278 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2024-11-24 00:21:02,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:21:02,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-24 00:21:02,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:02,280 INFO L225 Difference]: With dead ends: 86 [2024-11-24 00:21:02,280 INFO L226 Difference]: Without dead ends: 86 [2024-11-24 00:21:02,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:21:02,281 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 7 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:02,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 300 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:21:02,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-24 00:21:02,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-24 00:21:02,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.6071428571428572) internal successors, (90), 82 states have internal predecessors, (90), 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) [2024-11-24 00:21:02,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2024-11-24 00:21:02,287 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 24 [2024-11-24 00:21:02,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:02,288 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2024-11-24 00:21:02,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:02,288 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2024-11-24 00:21:02,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-24 00:21:02,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:02,289 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:02,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:21:02,289 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:02,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:02,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1060976284, now seen corresponding path program 1 times [2024-11-24 00:21:02,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:02,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240327368] [2024-11-24 00:21:02,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:02,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:21:02,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:02,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240327368] [2024-11-24 00:21:02,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240327368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:02,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:02,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:21:02,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395099473] [2024-11-24 00:21:02,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:02,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:21:02,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:02,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:21:02,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:21:02,731 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:02,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:02,924 INFO L93 Difference]: Finished difference Result 85 states and 93 transitions. [2024-11-24 00:21:02,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:21:02,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-24 00:21:02,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:02,926 INFO L225 Difference]: With dead ends: 85 [2024-11-24 00:21:02,927 INFO L226 Difference]: Without dead ends: 85 [2024-11-24 00:21:02,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:21:02,928 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 6 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:02,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 322 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:21:02,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-24 00:21:02,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-24 00:21:02,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.5892857142857142) internal successors, (89), 81 states have internal predecessors, (89), 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) [2024-11-24 00:21:02,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2024-11-24 00:21:02,938 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 24 [2024-11-24 00:21:02,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:02,938 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2024-11-24 00:21:02,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:02,939 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2024-11-24 00:21:02,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-24 00:21:02,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:02,939 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:02,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:21:02,944 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:02,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:02,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1690961020, now seen corresponding path program 1 times [2024-11-24 00:21:02,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:02,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430912402] [2024-11-24 00:21:02,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:02,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:03,401 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:03,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:03,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430912402] [2024-11-24 00:21:03,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430912402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:03,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226731527] [2024-11-24 00:21:03,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:03,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:03,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:03,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:03,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:21:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:03,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:21:03,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:03,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:21:03,719 WARN L873 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (= |c_#valid| (store |c_old(#valid)| |node_create_~temp~0#1.base| 1))) is different from true [2024-11-24 00:21:03,789 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-24 00:21:03,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-24 00:21:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2024-11-24 00:21:03,824 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:04,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226731527] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:21:04,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:21:04,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 6] total 11 [2024-11-24 00:21:04,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751261410] [2024-11-24 00:21:04,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:04,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:21:04,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:04,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:21:04,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=84, Unknown=1, NotChecked=18, Total=132 [2024-11-24 00:21:04,210 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:21:04,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:04,646 INFO L93 Difference]: Finished difference Result 90 states and 101 transitions. [2024-11-24 00:21:04,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:21:04,647 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2024-11-24 00:21:04,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:04,649 INFO L225 Difference]: With dead ends: 90 [2024-11-24 00:21:04,649 INFO L226 Difference]: Without dead ends: 90 [2024-11-24 00:21:04,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=101, Unknown=1, NotChecked=20, Total=156 [2024-11-24 00:21:04,652 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 1 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 94 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:04,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 432 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 276 Invalid, 0 Unknown, 94 Unchecked, 0.4s Time] [2024-11-24 00:21:04,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-24 00:21:04,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-24 00:21:04,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.5833333333333333) internal successors, (95), 85 states have internal predecessors, (95), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:21:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2024-11-24 00:21:04,672 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 26 [2024-11-24 00:21:04,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:04,672 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2024-11-24 00:21:04,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:21:04,673 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2024-11-24 00:21:04,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-24 00:21:04,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:04,673 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:04,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:21:04,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-24 00:21:04,878 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:04,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:04,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1690961019, now seen corresponding path program 1 times [2024-11-24 00:21:04,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:04,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212365959] [2024-11-24 00:21:04,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:04,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:05,660 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:05,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:05,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212365959] [2024-11-24 00:21:05,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212365959] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:05,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385059109] [2024-11-24 00:21:05,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:05,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:05,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:05,666 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:05,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:21:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:05,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 00:21:05,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:05,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:21:05,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:21:06,026 WARN L873 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (= (store |c_old(#length)| |node_create_~temp~0#1.base| (select |c_#length| |node_create_~temp~0#1.base|)) |c_#length|) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)))) is different from true [2024-11-24 00:21:06,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:06,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-24 00:21:06,122 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:21:06,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:21:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2024-11-24 00:21:06,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:06,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385059109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:06,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:21:06,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 11 [2024-11-24 00:21:06,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030699029] [2024-11-24 00:21:06,340 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:06,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:21:06,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:06,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:21:06,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=127, Unknown=1, NotChecked=22, Total=182 [2024-11-24 00:21:06,342 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:21:06,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:06,708 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2024-11-24 00:21:06,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:21:06,709 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2024-11-24 00:21:06,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:06,711 INFO L225 Difference]: With dead ends: 90 [2024-11-24 00:21:06,711 INFO L226 Difference]: Without dead ends: 90 [2024-11-24 00:21:06,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=171, Unknown=1, NotChecked=26, Total=240 [2024-11-24 00:21:06,712 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 93 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:06,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 343 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 206 Invalid, 0 Unknown, 93 Unchecked, 0.3s Time] [2024-11-24 00:21:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-24 00:21:06,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-24 00:21:06,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.5666666666666667) internal successors, (94), 85 states have internal predecessors, (94), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:21:06,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 100 transitions. [2024-11-24 00:21:06,722 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 100 transitions. Word has length 26 [2024-11-24 00:21:06,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:06,723 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 100 transitions. [2024-11-24 00:21:06,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:21:06,723 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2024-11-24 00:21:06,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-24 00:21:06,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:06,724 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:06,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:21:06,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-24 00:21:06,928 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:06,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:06,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1515748167, now seen corresponding path program 1 times [2024-11-24 00:21:06,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:06,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174061] [2024-11-24 00:21:06,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:06,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:21:07,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:07,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174061] [2024-11-24 00:21:07,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:07,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567202802] [2024-11-24 00:21:07,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:07,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:07,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:07,073 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:07,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:21:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:07,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:21:07,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:07,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:21:07,424 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-24 00:21:07,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 14 treesize of output 13 [2024-11-24 00:21:07,502 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:21:07,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:07,922 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:21:07,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567202802] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:21:07,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:21:07,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 10] total 20 [2024-11-24 00:21:07,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102092839] [2024-11-24 00:21:07,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:07,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 00:21:07,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:07,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 00:21:07,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:21:07,925 INFO L87 Difference]: Start difference. First operand 90 states and 100 transitions. Second operand has 20 states, 20 states have (on average 2.75) internal successors, (55), 14 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:21:08,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:08,409 INFO L93 Difference]: Finished difference Result 89 states and 98 transitions. [2024-11-24 00:21:08,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:21:08,409 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 14 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 28 [2024-11-24 00:21:08,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:08,410 INFO L225 Difference]: With dead ends: 89 [2024-11-24 00:21:08,410 INFO L226 Difference]: Without dead ends: 89 [2024-11-24 00:21:08,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:21:08,412 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 39 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:08,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 820 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:21:08,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-24 00:21:08,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-24 00:21:08,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 84 states have internal predecessors, (92), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:21:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2024-11-24 00:21:08,419 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 28 [2024-11-24 00:21:08,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:08,419 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2024-11-24 00:21:08,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 14 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:21:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2024-11-24 00:21:08,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-24 00:21:08,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:08,420 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:08,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:21:08,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:08,625 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:08,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:08,626 INFO L85 PathProgramCache]: Analyzing trace with hash 251665487, now seen corresponding path program 1 times [2024-11-24 00:21:08,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:08,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276577509] [2024-11-24 00:21:08,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:08,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:08,982 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:21:08,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:08,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276577509] [2024-11-24 00:21:08,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276577509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:08,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554820253] [2024-11-24 00:21:08,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:08,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:08,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:08,986 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:08,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:21:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:09,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 00:21:09,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:09,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:21:09,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:21:09,342 WARN L873 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (= (store |c_old(#length)| |node_create_~temp~0#1.base| (select |c_#length| |node_create_~temp~0#1.base|)) |c_#length|) (= 0 (select |c_old(#valid)| |node_create_~temp~0#1.base|)))) is different from true [2024-11-24 00:21:09,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:09,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-24 00:21:09,409 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:21:09,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:21:09,462 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2024-11-24 00:21:09,463 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:09,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554820253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:09,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:21:09,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2024-11-24 00:21:09,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122302246] [2024-11-24 00:21:09,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:09,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:21:09,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:09,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:21:09,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=201, Unknown=1, NotChecked=28, Total=272 [2024-11-24 00:21:09,622 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:21:10,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:10,045 INFO L93 Difference]: Finished difference Result 106 states and 120 transitions. [2024-11-24 00:21:10,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:21:10,045 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2024-11-24 00:21:10,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:10,047 INFO L225 Difference]: With dead ends: 106 [2024-11-24 00:21:10,048 INFO L226 Difference]: Without dead ends: 106 [2024-11-24 00:21:10,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=316, Unknown=1, NotChecked=36, Total=420 [2024-11-24 00:21:10,049 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 24 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 113 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:10,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 594 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 307 Invalid, 0 Unknown, 113 Unchecked, 0.3s Time] [2024-11-24 00:21:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-24 00:21:10,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 99. [2024-11-24 00:21:10,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 69 states have (on average 1.536231884057971) internal successors, (106), 93 states have internal predecessors, (106), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:21:10,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2024-11-24 00:21:10,056 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 114 transitions. Word has length 29 [2024-11-24 00:21:10,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:10,056 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 114 transitions. [2024-11-24 00:21:10,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:21:10,057 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 114 transitions. [2024-11-24 00:21:10,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-24 00:21:10,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:10,058 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:10,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:21:10,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:10,262 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:10,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:10,262 INFO L85 PathProgramCache]: Analyzing trace with hash -788304521, now seen corresponding path program 1 times [2024-11-24 00:21:10,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:10,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76293702] [2024-11-24 00:21:10,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:10,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:10,430 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 00:21:10,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:10,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76293702] [2024-11-24 00:21:10,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76293702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:10,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:10,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:21:10,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460627085] [2024-11-24 00:21:10,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:10,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:21:10,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:10,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:21:10,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:21:10,433 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:10,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:10,628 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2024-11-24 00:21:10,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:21:10,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2024-11-24 00:21:10,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:10,630 INFO L225 Difference]: With dead ends: 98 [2024-11-24 00:21:10,630 INFO L226 Difference]: Without dead ends: 98 [2024-11-24 00:21:10,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:21:10,631 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 7 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:10,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 340 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:21:10,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-24 00:21:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-24 00:21:10,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 69 states have (on average 1.5217391304347827) internal successors, (105), 92 states have internal predecessors, (105), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:21:10,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2024-11-24 00:21:10,642 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 30 [2024-11-24 00:21:10,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:10,642 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2024-11-24 00:21:10,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:10,643 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2024-11-24 00:21:10,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-24 00:21:10,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:10,647 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:10,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:21:10,648 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:10,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:10,648 INFO L85 PathProgramCache]: Analyzing trace with hash -788304520, now seen corresponding path program 1 times [2024-11-24 00:21:10,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:10,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550906169] [2024-11-24 00:21:10,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:10,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:21:10,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:10,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550906169] [2024-11-24 00:21:10,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550906169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:10,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:10,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:21:10,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784541674] [2024-11-24 00:21:10,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:10,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:21:10,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:10,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:21:10,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:21:10,948 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:11,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:11,140 INFO L93 Difference]: Finished difference Result 97 states and 112 transitions. [2024-11-24 00:21:11,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:21:11,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2024-11-24 00:21:11,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:11,141 INFO L225 Difference]: With dead ends: 97 [2024-11-24 00:21:11,142 INFO L226 Difference]: Without dead ends: 97 [2024-11-24 00:21:11,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:21:11,142 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 6 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:11,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 362 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:21:11,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-24 00:21:11,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-24 00:21:11,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 69 states have (on average 1.5072463768115942) internal successors, (104), 91 states have internal predecessors, (104), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:21:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2024-11-24 00:21:11,147 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 30 [2024-11-24 00:21:11,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:11,148 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2024-11-24 00:21:11,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:11,148 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2024-11-24 00:21:11,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-24 00:21:11,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:11,151 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:11,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:21:11,152 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:11,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1866366081, now seen corresponding path program 1 times [2024-11-24 00:21:11,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:11,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270236850] [2024-11-24 00:21:11,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:11,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:11,408 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 00:21:11,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:11,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270236850] [2024-11-24 00:21:11,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270236850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:11,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:11,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:21:11,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521709527] [2024-11-24 00:21:11,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:11,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:21:11,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:11,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:21:11,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:21:11,412 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:11,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:11,727 INFO L93 Difference]: Finished difference Result 100 states and 118 transitions. [2024-11-24 00:21:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:21:11,728 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2024-11-24 00:21:11,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:11,729 INFO L225 Difference]: With dead ends: 100 [2024-11-24 00:21:11,729 INFO L226 Difference]: Without dead ends: 100 [2024-11-24 00:21:11,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:21:11,730 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 45 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:11,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 423 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:21:11,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-24 00:21:11,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-24 00:21:11,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.5277777777777777) internal successors, (110), 94 states have internal predecessors, (110), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:21:11,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 118 transitions. [2024-11-24 00:21:11,740 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 118 transitions. Word has length 36 [2024-11-24 00:21:11,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:11,740 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 118 transitions. [2024-11-24 00:21:11,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:11,741 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 118 transitions. [2024-11-24 00:21:11,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-24 00:21:11,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:11,741 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:11,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:21:11,742 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:11,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:11,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1866366082, now seen corresponding path program 1 times [2024-11-24 00:21:11,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:11,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696477382] [2024-11-24 00:21:11,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:11,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:21:12,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:12,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696477382] [2024-11-24 00:21:12,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696477382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:12,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:12,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:21:12,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617093641] [2024-11-24 00:21:12,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:12,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:21:12,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:12,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:21:12,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:21:12,208 INFO L87 Difference]: Start difference. First operand 100 states and 118 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:12,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:12,519 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2024-11-24 00:21:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:21:12,520 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2024-11-24 00:21:12,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:12,521 INFO L225 Difference]: With dead ends: 100 [2024-11-24 00:21:12,522 INFO L226 Difference]: Without dead ends: 100 [2024-11-24 00:21:12,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:21:12,523 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 42 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:12,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 472 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:21:12,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-24 00:21:12,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-24 00:21:12,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.5) internal successors, (108), 94 states have internal predecessors, (108), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:21:12,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2024-11-24 00:21:12,533 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 36 [2024-11-24 00:21:12,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:12,534 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2024-11-24 00:21:12,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:12,534 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2024-11-24 00:21:12,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-24 00:21:12,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:12,535 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:12,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:21:12,536 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:12,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:12,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1637408804, now seen corresponding path program 1 times [2024-11-24 00:21:12,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:12,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436589868] [2024-11-24 00:21:12,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:12,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:12,757 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-24 00:21:12,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:12,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436589868] [2024-11-24 00:21:12,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436589868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:12,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:12,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:21:12,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365760972] [2024-11-24 00:21:12,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:12,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:21:12,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:12,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:21:12,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:21:12,760 INFO L87 Difference]: Start difference. First operand 100 states and 116 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:13,067 INFO L93 Difference]: Finished difference Result 103 states and 122 transitions. [2024-11-24 00:21:13,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:21:13,068 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2024-11-24 00:21:13,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:13,070 INFO L225 Difference]: With dead ends: 103 [2024-11-24 00:21:13,070 INFO L226 Difference]: Without dead ends: 103 [2024-11-24 00:21:13,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:21:13,071 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 43 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:13,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 423 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:21:13,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-24 00:21:13,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-11-24 00:21:13,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 75 states have (on average 1.52) internal successors, (114), 97 states have internal predecessors, (114), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:21:13,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2024-11-24 00:21:13,077 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 38 [2024-11-24 00:21:13,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:13,077 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2024-11-24 00:21:13,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2024-11-24 00:21:13,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-24 00:21:13,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:13,081 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:13,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:21:13,082 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:13,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:13,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1637408803, now seen corresponding path program 1 times [2024-11-24 00:21:13,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:13,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706341730] [2024-11-24 00:21:13,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:13,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:13,240 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:21:13,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:13,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706341730] [2024-11-24 00:21:13,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706341730] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:13,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729802617] [2024-11-24 00:21:13,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:13,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:13,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:13,243 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:13,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:21:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:13,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:21:13,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:13,455 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 00:21:13,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:21:13,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729802617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:13,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:21:13,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2024-11-24 00:21:13,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486233001] [2024-11-24 00:21:13,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:13,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:21:13,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:13,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:21:13,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:21:13,456 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:13,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:13,489 INFO L93 Difference]: Finished difference Result 137 states and 162 transitions. [2024-11-24 00:21:13,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:21:13,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2024-11-24 00:21:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:13,490 INFO L225 Difference]: With dead ends: 137 [2024-11-24 00:21:13,491 INFO L226 Difference]: Without dead ends: 137 [2024-11-24 00:21:13,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:21:13,491 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 123 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:13,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 169 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:21:13,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-24 00:21:13,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 105. [2024-11-24 00:21:13,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 99 states have internal predecessors, (116), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:21:13,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 124 transitions. [2024-11-24 00:21:13,496 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 124 transitions. Word has length 38 [2024-11-24 00:21:13,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:13,496 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 124 transitions. [2024-11-24 00:21:13,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:13,497 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 124 transitions. [2024-11-24 00:21:13,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-24 00:21:13,498 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:13,498 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:13,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:21:13,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 00:21:13,699 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:13,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:13,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1734662396, now seen corresponding path program 1 times [2024-11-24 00:21:13,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:13,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175695529] [2024-11-24 00:21:13,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:13,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:13,891 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:21:13,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:13,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175695529] [2024-11-24 00:21:13,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175695529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:13,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446309310] [2024-11-24 00:21:13,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:13,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:13,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:13,894 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:13,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:21:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:14,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:21:14,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 00:21:14,149 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:21:14,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446309310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:14,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:21:14,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 8 [2024-11-24 00:21:14,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388498946] [2024-11-24 00:21:14,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:14,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:21:14,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:14,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:21:14,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:21:14,151 INFO L87 Difference]: Start difference. First operand 105 states and 124 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:14,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:14,217 INFO L93 Difference]: Finished difference Result 102 states and 120 transitions. [2024-11-24 00:21:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:21:14,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2024-11-24 00:21:14,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:14,219 INFO L225 Difference]: With dead ends: 102 [2024-11-24 00:21:14,219 INFO L226 Difference]: Without dead ends: 102 [2024-11-24 00:21:14,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:21:14,220 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 88 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:14,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 212 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:21:14,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-24 00:21:14,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-24 00:21:14,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 76 states have (on average 1.4736842105263157) internal successors, (112), 96 states have internal predecessors, (112), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:21:14,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 120 transitions. [2024-11-24 00:21:14,225 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 120 transitions. Word has length 39 [2024-11-24 00:21:14,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:14,225 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 120 transitions. [2024-11-24 00:21:14,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:14,226 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 120 transitions. [2024-11-24 00:21:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-24 00:21:14,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:14,227 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:14,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 00:21:14,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 00:21:14,428 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:14,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:14,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1734662327, now seen corresponding path program 1 times [2024-11-24 00:21:14,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:14,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611841166] [2024-11-24 00:21:14,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:14,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:15,340 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:15,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:15,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611841166] [2024-11-24 00:21:15,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611841166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:15,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642334249] [2024-11-24 00:21:15,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:15,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:15,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:15,343 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:15,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:21:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:15,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-24 00:21:15,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:15,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:21:15,655 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:21:15,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:21:15,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:21:15,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:21:15,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:21:15,897 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 35 treesize of output 26 [2024-11-24 00:21:16,146 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:16,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 16 [2024-11-24 00:21:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:16,155 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:16,207 INFO L349 Elim1Store]: treesize reduction 5, result has 66.7 percent of original size [2024-11-24 00:21:16,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2024-11-24 00:21:16,215 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1202 (Array Int Int))) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_1202) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) is different from false [2024-11-24 00:21:16,232 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1202 (Array Int Int))) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_1202) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|))) is different from false [2024-11-24 00:21:16,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:16,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 22 [2024-11-24 00:21:16,348 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 122 treesize of output 110 [2024-11-24 00:21:16,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 23 treesize of output 21 [2024-11-24 00:21:16,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 16 [2024-11-24 00:21:16,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642334249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:16,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:21:16,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 31 [2024-11-24 00:21:16,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352570669] [2024-11-24 00:21:16,498 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:16,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-24 00:21:16,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:16,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-24 00:21:16,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1025, Unknown=16, NotChecked=130, Total=1260 [2024-11-24 00:21:16,500 INFO L87 Difference]: Start difference. First operand 102 states and 120 transitions. Second operand has 32 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 28 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:21:17,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:17,453 INFO L93 Difference]: Finished difference Result 115 states and 134 transitions. [2024-11-24 00:21:17,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:21:17,454 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 28 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-24 00:21:17,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:17,455 INFO L225 Difference]: With dead ends: 115 [2024-11-24 00:21:17,455 INFO L226 Difference]: Without dead ends: 115 [2024-11-24 00:21:17,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=124, Invalid=1427, Unknown=17, NotChecked=154, Total=1722 [2024-11-24 00:21:17,457 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 11 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:17,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1355 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:21:17,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-24 00:21:17,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2024-11-24 00:21:17,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 87 states have (on average 1.4367816091954022) internal successors, (125), 107 states have internal predecessors, (125), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:21:17,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 133 transitions. [2024-11-24 00:21:17,461 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 133 transitions. Word has length 39 [2024-11-24 00:21:17,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:17,462 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 133 transitions. [2024-11-24 00:21:17,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 28 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:21:17,462 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 133 transitions. [2024-11-24 00:21:17,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-24 00:21:17,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:17,463 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:17,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 00:21:17,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 00:21:17,664 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:17,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:17,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1734662326, now seen corresponding path program 1 times [2024-11-24 00:21:17,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:17,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763303690] [2024-11-24 00:21:17,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:17,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:19,097 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:19,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:19,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763303690] [2024-11-24 00:21:19,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763303690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:19,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369978033] [2024-11-24 00:21:19,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:19,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:19,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:19,101 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:19,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 00:21:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:19,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-24 00:21:19,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:19,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:21:19,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:21:19,744 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-24 00:21:19,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 14 treesize of output 13 [2024-11-24 00:21:19,764 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:21:19,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:21:19,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:21:19,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:21:20,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:21:20,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-24 00:21:20,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:21:20,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-24 00:21:20,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 20 [2024-11-24 00:21:20,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-24 00:21:20,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 16 [2024-11-24 00:21:20,842 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:20,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 13 [2024-11-24 00:21:20,978 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:20,978 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:21,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:21,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2024-11-24 00:21:21,981 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 138 treesize of output 126 [2024-11-24 00:21:21,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 27 treesize of output 25 [2024-11-24 00:21:22,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 24 treesize of output 20 [2024-11-24 00:21:22,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:22,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 44 [2024-11-24 00:21:22,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:22,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2024-11-24 00:21:22,072 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:22,073 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:22,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-11-24 00:21:22,081 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:22,082 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:22,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-24 00:21:22,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369978033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:22,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:21:22,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2024-11-24 00:21:22,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589527332] [2024-11-24 00:21:22,538 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:22,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-24 00:21:22,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:22,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-24 00:21:22,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=2408, Unknown=2, NotChecked=0, Total=2550 [2024-11-24 00:21:22,542 INFO L87 Difference]: Start difference. First operand 113 states and 133 transitions. Second operand has 39 states, 38 states have (on average 1.7894736842105263) internal successors, (68), 34 states have internal predecessors, (68), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:21:24,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:24,881 INFO L93 Difference]: Finished difference Result 114 states and 133 transitions. [2024-11-24 00:21:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:21:24,881 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 1.7894736842105263) internal successors, (68), 34 states have internal predecessors, (68), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-11-24 00:21:24,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:24,882 INFO L225 Difference]: With dead ends: 114 [2024-11-24 00:21:24,882 INFO L226 Difference]: Without dead ends: 114 [2024-11-24 00:21:24,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=244, Invalid=4044, Unknown=2, NotChecked=0, Total=4290 [2024-11-24 00:21:24,885 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 22 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:24,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1558 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:21:24,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-24 00:21:24,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2024-11-24 00:21:24,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 86 states have (on average 1.430232558139535) internal successors, (123), 106 states have internal predecessors, (123), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:21:24,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 131 transitions. [2024-11-24 00:21:24,890 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 131 transitions. Word has length 39 [2024-11-24 00:21:24,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:24,890 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 131 transitions. [2024-11-24 00:21:24,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 1.7894736842105263) internal successors, (68), 34 states have internal predecessors, (68), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:21:24,891 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 131 transitions. [2024-11-24 00:21:24,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-24 00:21:24,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:24,891 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:24,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-24 00:21:25,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-24 00:21:25,096 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:25,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:25,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1671062596, now seen corresponding path program 1 times [2024-11-24 00:21:25,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:25,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26727246] [2024-11-24 00:21:25,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:25,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 00:21:25,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26727246] [2024-11-24 00:21:25,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26727246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11022708] [2024-11-24 00:21:25,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:25,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:25,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:25,214 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:25,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 00:21:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:25,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:21:25,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:25,450 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:21:25,451 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:21:25,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11022708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:25,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:21:25,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-24 00:21:25,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595501529] [2024-11-24 00:21:25,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:25,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:21:25,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:25,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:21:25,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:21:25,453 INFO L87 Difference]: Start difference. First operand 112 states and 131 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:21:25,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:25,470 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2024-11-24 00:21:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:21:25,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-11-24 00:21:25,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:25,472 INFO L225 Difference]: With dead ends: 89 [2024-11-24 00:21:25,472 INFO L226 Difference]: Without dead ends: 89 [2024-11-24 00:21:25,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:21:25,472 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:25,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:21:25,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-24 00:21:25,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-24 00:21:25,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 85 states have internal predecessors, (95), 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) [2024-11-24 00:21:25,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 99 transitions. [2024-11-24 00:21:25,477 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 99 transitions. Word has length 41 [2024-11-24 00:21:25,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:25,477 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 99 transitions. [2024-11-24 00:21:25,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:21:25,477 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 99 transitions. [2024-11-24 00:21:25,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-24 00:21:25,478 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:25,478 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:25,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 00:21:25,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:25,682 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:25,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:25,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1827694649, now seen corresponding path program 1 times [2024-11-24 00:21:25,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:25,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170036401] [2024-11-24 00:21:25,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:25,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:25,788 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 00:21:25,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:25,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170036401] [2024-11-24 00:21:25,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170036401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:25,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666110898] [2024-11-24 00:21:25,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:25,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:25,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:25,793 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:25,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 00:21:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:26,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:21:26,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:26,069 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 00:21:26,069 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:21:26,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666110898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:26,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:21:26,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-24 00:21:26,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49359549] [2024-11-24 00:21:26,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:26,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:21:26,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:26,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:21:26,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:21:26,070 INFO L87 Difference]: Start difference. First operand 89 states and 99 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:26,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:26,131 INFO L93 Difference]: Finished difference Result 110 states and 123 transitions. [2024-11-24 00:21:26,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:21:26,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2024-11-24 00:21:26,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:26,133 INFO L225 Difference]: With dead ends: 110 [2024-11-24 00:21:26,133 INFO L226 Difference]: Without dead ends: 110 [2024-11-24 00:21:26,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:21:26,134 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 111 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:26,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 225 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:21:26,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-24 00:21:26,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 89. [2024-11-24 00:21:26,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 85 states have internal predecessors, (94), 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) [2024-11-24 00:21:26,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2024-11-24 00:21:26,145 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 43 [2024-11-24 00:21:26,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:26,145 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2024-11-24 00:21:26,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:26,145 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2024-11-24 00:21:26,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-24 00:21:26,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:26,146 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:26,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-24 00:21:26,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:26,347 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:26,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:26,348 INFO L85 PathProgramCache]: Analyzing trace with hash 439985124, now seen corresponding path program 1 times [2024-11-24 00:21:26,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:26,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303901830] [2024-11-24 00:21:26,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:26,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:26,448 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:21:26,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:26,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303901830] [2024-11-24 00:21:26,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303901830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:26,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177343683] [2024-11-24 00:21:26,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:26,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:26,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:26,451 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:26,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 00:21:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:26,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:21:26,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:21:26,747 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:26,814 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:21:26,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177343683] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:21:26,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:21:26,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-24 00:21:26,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095126355] [2024-11-24 00:21:26,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:26,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:21:26,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:26,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:21:26,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:21:26,816 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:21:26,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:26,871 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2024-11-24 00:21:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:21:26,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2024-11-24 00:21:26,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:26,873 INFO L225 Difference]: With dead ends: 112 [2024-11-24 00:21:26,873 INFO L226 Difference]: Without dead ends: 112 [2024-11-24 00:21:26,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:21:26,874 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 147 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:26,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 217 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:21:26,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-24 00:21:26,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 104. [2024-11-24 00:21:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 83 states have (on average 1.4216867469879517) internal successors, (118), 100 states have internal predecessors, (118), 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) [2024-11-24 00:21:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 122 transitions. [2024-11-24 00:21:26,879 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 122 transitions. Word has length 46 [2024-11-24 00:21:26,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:26,879 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 122 transitions. [2024-11-24 00:21:26,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:21:26,879 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions. [2024-11-24 00:21:26,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-24 00:21:26,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:26,880 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:26,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 00:21:27,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:27,081 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:27,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1759960030, now seen corresponding path program 1 times [2024-11-24 00:21:27,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:27,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873871057] [2024-11-24 00:21:27,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:27,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:27,229 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:21:27,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:27,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873871057] [2024-11-24 00:21:27,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873871057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:27,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683080373] [2024-11-24 00:21:27,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:27,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:27,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:27,232 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:27,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 00:21:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:27,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:21:27,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:27,538 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:21:27,538 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:27,612 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:21:27,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683080373] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:21:27,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:21:27,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-11-24 00:21:27,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447422141] [2024-11-24 00:21:27,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:27,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:21:27,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:27,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:21:27,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:21:27,614 INFO L87 Difference]: Start difference. First operand 104 states and 122 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:21:27,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:27,675 INFO L93 Difference]: Finished difference Result 106 states and 118 transitions. [2024-11-24 00:21:27,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:21:27,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2024-11-24 00:21:27,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:27,677 INFO L225 Difference]: With dead ends: 106 [2024-11-24 00:21:27,677 INFO L226 Difference]: Without dead ends: 106 [2024-11-24 00:21:27,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 89 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:21:27,679 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 117 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:27,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 377 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:21:27,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-24 00:21:27,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 98. [2024-11-24 00:21:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.4050632911392404) internal successors, (111), 94 states have internal predecessors, (111), 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) [2024-11-24 00:21:27,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 115 transitions. [2024-11-24 00:21:27,686 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 115 transitions. Word has length 47 [2024-11-24 00:21:27,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:27,687 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 115 transitions. [2024-11-24 00:21:27,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:21:27,687 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 115 transitions. [2024-11-24 00:21:27,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-24 00:21:27,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:27,687 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:27,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-24 00:21:27,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:27,888 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:27,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:27,888 INFO L85 PathProgramCache]: Analyzing trace with hash -165576672, now seen corresponding path program 2 times [2024-11-24 00:21:27,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:27,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730717836] [2024-11-24 00:21:27,889 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:21:27,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:27,917 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:21:27,917 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:21:28,158 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:21:28,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:28,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730717836] [2024-11-24 00:21:28,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730717836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:28,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:28,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:21:28,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793230501] [2024-11-24 00:21:28,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:28,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:21:28,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:28,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:21:28,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:21:28,161 INFO L87 Difference]: Start difference. First operand 98 states and 115 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:28,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:28,379 INFO L93 Difference]: Finished difference Result 98 states and 111 transitions. [2024-11-24 00:21:28,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:21:28,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 51 [2024-11-24 00:21:28,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:28,380 INFO L225 Difference]: With dead ends: 98 [2024-11-24 00:21:28,380 INFO L226 Difference]: Without dead ends: 98 [2024-11-24 00:21:28,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:21:28,381 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 23 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:28,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 432 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:21:28,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-24 00:21:28,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-24 00:21:28,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 94 states have internal predecessors, (107), 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) [2024-11-24 00:21:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions. [2024-11-24 00:21:28,385 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 51 [2024-11-24 00:21:28,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:28,385 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 111 transitions. [2024-11-24 00:21:28,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:28,385 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions. [2024-11-24 00:21:28,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 00:21:28,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:28,386 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:28,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:21:28,386 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:28,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:28,387 INFO L85 PathProgramCache]: Analyzing trace with hash -2072142231, now seen corresponding path program 1 times [2024-11-24 00:21:28,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:28,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162078364] [2024-11-24 00:21:28,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:28,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:28,512 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-24 00:21:28,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:28,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162078364] [2024-11-24 00:21:28,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162078364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:28,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:28,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:21:28,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484172759] [2024-11-24 00:21:28,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:28,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:21:28,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:28,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:21:28,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:21:28,514 INFO L87 Difference]: Start difference. First operand 98 states and 111 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:28,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:28,568 INFO L93 Difference]: Finished difference Result 94 states and 103 transitions. [2024-11-24 00:21:28,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:21:28,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2024-11-24 00:21:28,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:28,569 INFO L225 Difference]: With dead ends: 94 [2024-11-24 00:21:28,569 INFO L226 Difference]: Without dead ends: 94 [2024-11-24 00:21:28,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:21:28,572 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 49 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:28,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 189 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:21:28,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-24 00:21:28,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-24 00:21:28,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 77 states have (on average 1.2857142857142858) internal successors, (99), 90 states have internal predecessors, (99), 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) [2024-11-24 00:21:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 103 transitions. [2024-11-24 00:21:28,579 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 103 transitions. Word has length 54 [2024-11-24 00:21:28,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:28,580 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 103 transitions. [2024-11-24 00:21:28,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:28,580 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 103 transitions. [2024-11-24 00:21:28,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 00:21:28,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:28,581 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:28,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:21:28,581 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:28,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:28,581 INFO L85 PathProgramCache]: Analyzing trace with hash -2072142162, now seen corresponding path program 1 times [2024-11-24 00:21:28,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:28,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961312060] [2024-11-24 00:21:28,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:28,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:30,020 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:30,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:30,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961312060] [2024-11-24 00:21:30,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961312060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:30,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733656766] [2024-11-24 00:21:30,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:30,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:30,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:30,023 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:30,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 00:21:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:30,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-24 00:21:30,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:30,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:21:30,417 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:21:30,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:21:30,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:21:30,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:21:30,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:21:30,673 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 35 treesize of output 26 [2024-11-24 00:21:31,082 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-24 00:21:31,083 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 42 [2024-11-24 00:21:31,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:31,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:31,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:31,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 29 [2024-11-24 00:21:31,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:31,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 16 [2024-11-24 00:21:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:21:31,329 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:31,376 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2232 (Array Int Int))) (or (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base| v_ArrVal_2232) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)) 1) (not (= (let ((.cse0 (+ 8 |c_ULTIMATE.start_dll_circular_update_at_~head#1.offset|))) (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base|) .cse0 (select v_ArrVal_2232 .cse0))) v_ArrVal_2232)))) is different from false [2024-11-24 00:21:31,743 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2231 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) v_ArrVal_2231) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)) 1)) is different from false [2024-11-24 00:21:31,850 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2231 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) v_ArrVal_2231) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|)) 1)) is different from false [2024-11-24 00:21:31,857 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2231 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse0 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store .cse0 (+ 4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) (select .cse0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) v_ArrVal_2231)) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|)) 1)) is different from false [2024-11-24 00:21:31,870 INFO L349 Elim1Store]: treesize reduction 5, result has 86.8 percent of original size [2024-11-24 00:21:31,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-24 00:21:31,877 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2229 (Array Int Int)) (v_ArrVal_2231 (Array Int Int))) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2229))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (store (store .cse0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store .cse1 (+ 4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) (select .cse1 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) v_ArrVal_2231))) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) is different from false [2024-11-24 00:21:32,001 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2229 (Array Int Int)) (v_ArrVal_2228 (Array Int Int)) (v_ArrVal_2231 (Array Int Int))) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| v_ArrVal_2228) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2229))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (store (store .cse0 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store .cse1 (+ |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| 4) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) (select .cse1 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) v_ArrVal_2231))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|))) is different from false [2024-11-24 00:21:32,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:32,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 56 [2024-11-24 00:21:32,022 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 365 treesize of output 337 [2024-11-24 00:21:32,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 135 treesize of output 123 [2024-11-24 00:21:32,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 123 treesize of output 117 [2024-11-24 00:21:32,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 38 treesize of output 36 [2024-11-24 00:21:32,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733656766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:32,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:21:32,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24] total 42 [2024-11-24 00:21:32,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968542914] [2024-11-24 00:21:32,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:32,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-24 00:21:32,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:32,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-24 00:21:32,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=2133, Unknown=84, NotChecked=594, Total=2970 [2024-11-24 00:21:32,228 INFO L87 Difference]: Start difference. First operand 94 states and 103 transitions. Second operand has 43 states, 42 states have (on average 2.0714285714285716) internal successors, (87), 39 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:21:33,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:33,355 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2024-11-24 00:21:33,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:21:33,355 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.0714285714285716) internal successors, (87), 39 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 54 [2024-11-24 00:21:33,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:33,356 INFO L225 Difference]: With dead ends: 93 [2024-11-24 00:21:33,356 INFO L226 Difference]: Without dead ends: 93 [2024-11-24 00:21:33,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=250, Invalid=3349, Unknown=85, NotChecked=738, Total=4422 [2024-11-24 00:21:33,358 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 69 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:33,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1140 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:21:33,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-24 00:21:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-24 00:21:33,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 77 states have (on average 1.2597402597402598) internal successors, (97), 89 states have internal predecessors, (97), 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) [2024-11-24 00:21:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2024-11-24 00:21:33,362 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 54 [2024-11-24 00:21:33,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:33,362 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2024-11-24 00:21:33,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 2.0714285714285716) internal successors, (87), 39 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:21:33,362 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2024-11-24 00:21:33,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 00:21:33,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:33,363 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:33,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-24 00:21:33,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:33,564 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:33,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:33,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2072142161, now seen corresponding path program 1 times [2024-11-24 00:21:33,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:33,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997857888] [2024-11-24 00:21:33,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:33,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:35,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:35,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997857888] [2024-11-24 00:21:35,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997857888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:35,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539371942] [2024-11-24 00:21:35,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:35,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:35,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:35,556 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:35,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-24 00:21:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:35,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 107 conjuncts are in the unsatisfiable core [2024-11-24 00:21:35,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:35,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:21:35,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:21:36,160 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:21:36,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:21:36,169 WARN L851 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.base|)) (or (exists ((|v_#length_BEFORE_CALL_8| (Array Int Int))) (let ((.cse0 (@diff |v_#length_BEFORE_CALL_8| |c_#length|))) (and (= (store |v_#length_BEFORE_CALL_8| .cse0 (select |c_#length| .cse0)) |c_#length|) (<= 12 (select |v_#length_BEFORE_CALL_8| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|)) (= .cse0 |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.base|)))) (< 11 (select |c_#length| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (<= |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.offset| 0) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|)) is different from false [2024-11-24 00:21:36,172 WARN L873 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.base|)) (or (exists ((|v_#length_BEFORE_CALL_8| (Array Int Int))) (let ((.cse0 (@diff |v_#length_BEFORE_CALL_8| |c_#length|))) (and (= (store |v_#length_BEFORE_CALL_8| .cse0 (select |c_#length| .cse0)) |c_#length|) (<= 12 (select |v_#length_BEFORE_CALL_8| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|)) (= .cse0 |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.base|)))) (< 11 (select |c_#length| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (<= |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.offset| 0) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|)) is different from true [2024-11-24 00:21:36,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:21:36,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:21:36,397 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-24 00:21:36,397 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 50 [2024-11-24 00:21:36,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-24 00:21:36,576 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-24 00:21:36,576 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 1 case distinctions, treesize of input 36 treesize of output 27 [2024-11-24 00:21:36,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:21:36,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-24 00:21:36,668 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-24 00:21:36,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 37 [2024-11-24 00:21:37,284 INFO L349 Elim1Store]: treesize reduction 50, result has 9.1 percent of original size [2024-11-24 00:21:37,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 62 [2024-11-24 00:21:37,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:37,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 16 [2024-11-24 00:21:37,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-11-24 00:21:37,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:37,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:37,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2024-11-24 00:21:37,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:37,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:37,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 27 [2024-11-24 00:21:37,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-11-24 00:21:37,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-24 00:21:37,831 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:21:37,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:38,118 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base|)) (.cse1 (+ 8 |c_ULTIMATE.start_dll_circular_update_at_~head#1.offset|))) (and (forall ((v_ArrVal_2398 Int)) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base| (store .cse0 .cse1 v_ArrVal_2398)) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) 8))) (forall ((v_ArrVal_2400 (Array Int Int))) (or (forall ((v_ArrVal_2398 Int)) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base| (store .cse0 .cse1 v_ArrVal_2398)) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base| v_ArrVal_2400) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))) (not (= v_ArrVal_2400 (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base|) .cse1 (select v_ArrVal_2400 .cse1)))))))) is different from false [2024-11-24 00:21:38,493 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2397 (Array Int Int)) (v_ArrVal_2396 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_update_at_#t~mem12#1.base| v_ArrVal_2396) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_#t~mem12#1.base| v_ArrVal_2397) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))) (forall ((v_ArrVal_2396 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_update_at_#t~mem12#1.base| v_ArrVal_2396) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) 8)))) is different from false [2024-11-24 00:21:38,509 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base|) |c_ULTIMATE.start_dll_circular_update_at_~head#1.offset|))) (and (forall ((v_ArrVal_2396 (Array Int Int))) (<= 0 (+ 8 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2396) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))) (forall ((v_ArrVal_2397 (Array Int Int)) (v_ArrVal_2396 (Array Int Int))) (<= (+ 12 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2396) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2397) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))))) is different from false [2024-11-24 00:21:38,529 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) (and (forall ((v_ArrVal_2396 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2396) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) 8))) (forall ((v_ArrVal_2397 (Array Int Int)) (v_ArrVal_2396 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2396) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2397) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))))) is different from false [2024-11-24 00:21:38,549 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_#res#1.base|) |c_ULTIMATE.start_dll_circular_create_#res#1.offset|))) (and (forall ((v_ArrVal_2396 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2396) |c_ULTIMATE.start_dll_circular_create_#res#1.base|) |c_ULTIMATE.start_dll_circular_create_#res#1.offset|) 8))) (forall ((v_ArrVal_2397 (Array Int Int)) (v_ArrVal_2396 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2396) |c_ULTIMATE.start_dll_circular_create_#res#1.base|) |c_ULTIMATE.start_dll_circular_create_#res#1.offset|) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2397) |c_ULTIMATE.start_dll_circular_create_#res#1.base|) |c_ULTIMATE.start_dll_circular_create_#res#1.offset|)))))) is different from false [2024-11-24 00:21:38,558 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) (and (forall ((v_ArrVal_2397 (Array Int Int)) (v_ArrVal_2396 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2396) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_2397) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|)))) (forall ((v_ArrVal_2396 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_2396) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) 8))))) is different from false [2024-11-24 00:21:38,569 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|)) (.cse3 (+ 4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) (let ((.cse0 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) .cse3 |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset|))) (.cse1 (select .cse2 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) (and (forall ((v_ArrVal_2396 (Array Int Int))) (<= 0 (+ (select (select (store .cse0 .cse1 v_ArrVal_2396) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) 8))) (forall ((v_ArrVal_2397 (Array Int Int)) (v_ArrVal_2396 (Array Int Int))) (<= (+ (select (select (store .cse0 .cse1 v_ArrVal_2396) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) 12) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store .cse2 .cse3 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) .cse1 v_ArrVal_2397) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))))))) is different from false [2024-11-24 00:21:39,108 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:39,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 318 treesize of output 318 [2024-11-24 00:21:39,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:39,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 358 treesize of output 238 [2024-11-24 00:21:39,137 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:39,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1071 treesize of output 1029 [2024-11-24 00:21:39,168 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 865 treesize of output 829 [2024-11-24 00:21:39,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 487 treesize of output 463 [2024-11-24 00:21:39,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 316 treesize of output 312 [2024-11-24 00:21:39,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 312 treesize of output 300 [2024-11-24 00:21:39,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 128 treesize of output 126 [2024-11-24 00:21:39,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 126 treesize of output 124 [2024-11-24 00:21:39,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 25 [2024-11-24 00:21:39,455 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:39,456 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:39,463 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:39,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 108 [2024-11-24 00:21:39,474 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:39,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 76 [2024-11-24 00:21:39,480 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:39,481 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:39,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 62 [2024-11-24 00:21:39,489 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:39,490 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:39,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-24 00:21:39,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539371942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:39,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:21:39,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25] total 45 [2024-11-24 00:21:39,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227915468] [2024-11-24 00:21:39,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:39,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-24 00:21:39,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:39,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-24 00:21:39,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=2859, Unknown=38, NotChecked=920, Total=4032 [2024-11-24 00:21:39,901 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand has 46 states, 45 states have (on average 1.9333333333333333) internal successors, (87), 41 states have internal predecessors, (87), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:21:40,314 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#length| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (and (not (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.base|)) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.base|)) (or (exists ((|v_#length_BEFORE_CALL_8| (Array Int Int))) (let ((.cse0 (@diff |v_#length_BEFORE_CALL_8| |c_#length|))) (and (= (store |v_#length_BEFORE_CALL_8| .cse0 (select |c_#length| .cse0)) |c_#length|) (<= 12 (select |v_#length_BEFORE_CALL_8| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|)) (= .cse0 |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.base|)))) (< 11 .cse1)) (<= |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset| 0) (<= 12 .cse1) (= 0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) (= |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.offset| 0) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) is different from false [2024-11-24 00:21:40,318 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#length| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (and (not (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.base|)) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.base|)) (or (exists ((|v_#length_BEFORE_CALL_8| (Array Int Int))) (let ((.cse0 (@diff |v_#length_BEFORE_CALL_8| |c_#length|))) (and (= (store |v_#length_BEFORE_CALL_8| .cse0 (select |c_#length| .cse0)) |c_#length|) (<= 12 (select |v_#length_BEFORE_CALL_8| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|)) (= .cse0 |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.base|)))) (< 11 .cse1)) (<= |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset| 0) (<= 12 .cse1) (= 0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) (= |c_ULTIMATE.start_dll_circular_create_#t~ret5#1.offset| 0) (= |c_ULTIMATE.start_dll_circular_create_~last~0#1.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) is different from true [2024-11-24 00:21:41,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:41,373 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2024-11-24 00:21:41,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 00:21:41,374 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 1.9333333333333333) internal successors, (87), 41 states have internal predecessors, (87), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2024-11-24 00:21:41,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:41,375 INFO L225 Difference]: With dead ends: 92 [2024-11-24 00:21:41,375 INFO L226 Difference]: Without dead ends: 92 [2024-11-24 00:21:41,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=302, Invalid=4114, Unknown=42, NotChecked=1242, Total=5700 [2024-11-24 00:21:41,377 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 23 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 124 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:41,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1252 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1004 Invalid, 0 Unknown, 124 Unchecked, 0.8s Time] [2024-11-24 00:21:41,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-24 00:21:41,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2024-11-24 00:21:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 75 states have (on average 1.24) internal successors, (93), 86 states have internal predecessors, (93), 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) [2024-11-24 00:21:41,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2024-11-24 00:21:41,382 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 54 [2024-11-24 00:21:41,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:41,387 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2024-11-24 00:21:41,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 1.9333333333333333) internal successors, (87), 41 states have internal predecessors, (87), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:21:41,387 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2024-11-24 00:21:41,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-24 00:21:41,388 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:41,388 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:41,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-24 00:21:41,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-24 00:21:41,589 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:41,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:41,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1699707061, now seen corresponding path program 1 times [2024-11-24 00:21:41,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:41,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282040730] [2024-11-24 00:21:41,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:41,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:41,828 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-24 00:21:41,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:41,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282040730] [2024-11-24 00:21:41,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282040730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:41,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:41,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:21:41,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339642138] [2024-11-24 00:21:41,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:41,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:21:41,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:41,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:21:41,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:21:41,830 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:41,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:41,891 INFO L93 Difference]: Finished difference Result 94 states and 99 transitions. [2024-11-24 00:21:41,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:21:41,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2024-11-24 00:21:41,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:41,892 INFO L225 Difference]: With dead ends: 94 [2024-11-24 00:21:41,892 INFO L226 Difference]: Without dead ends: 94 [2024-11-24 00:21:41,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:21:41,893 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 77 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:41,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 191 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:21:41,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-24 00:21:41,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-11-24 00:21:41,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 86 states have internal predecessors, (92), 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) [2024-11-24 00:21:41,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2024-11-24 00:21:41,897 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 57 [2024-11-24 00:21:41,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:41,897 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2024-11-24 00:21:41,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:41,898 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-11-24 00:21:41,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:21:41,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:41,898 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:41,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:21:41,899 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:41,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:41,899 INFO L85 PathProgramCache]: Analyzing trace with hash 69875583, now seen corresponding path program 1 times [2024-11-24 00:21:41,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:41,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858723906] [2024-11-24 00:21:41,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:41,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:21:44,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:44,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858723906] [2024-11-24 00:21:44,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858723906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:44,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674063547] [2024-11-24 00:21:44,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:44,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:44,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:44,803 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:44,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-24 00:21:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:45,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 115 conjuncts are in the unsatisfiable core [2024-11-24 00:21:45,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:45,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:21:45,338 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:21:45,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:21:45,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:21:45,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:21:45,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:21:45,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:21:45,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:21:45,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:21:45,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:21:45,663 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 26 treesize of output 21 [2024-11-24 00:21:46,304 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-24 00:21:46,304 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 68 [2024-11-24 00:21:46,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-24 00:21:46,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2024-11-24 00:21:46,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:46,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:46,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 37 [2024-11-24 00:21:46,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2024-11-24 00:21:46,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:21:46,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2024-11-24 00:21:46,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 24 [2024-11-24 00:21:46,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-24 00:21:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:21:47,217 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:47,548 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2648 (Array Int Int)) (v_ArrVal_2645 (Array Int Int)) (v_ArrVal_2647 Int)) (let ((.cse0 (+ 8 |c_ULTIMATE.start_dll_circular_update_at_~head#1.offset|))) (or (= (* |c_ULTIMATE.start_main_~len~0#1| 2) (+ (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base| v_ArrVal_2645) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base| v_ArrVal_2648) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)) (+ 8 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base| (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base|) .cse0 v_ArrVal_2647)) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) 1)) (not (= v_ArrVal_2648 (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base|) .cse0 (select v_ArrVal_2648 .cse0))))))) is different from false [2024-11-24 00:21:47,759 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2645 (Array Int Int))) (= (+ (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_main_~s~0#1.base| v_ArrVal_2645) (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)) (+ 8 (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) 1) (* |c_ULTIMATE.start_main_~len~0#1| 2))) is different from false [2024-11-24 00:21:47,770 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:47,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 41 [2024-11-24 00:21:47,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:47,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 78 [2024-11-24 00:21:47,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 18 [2024-11-24 00:21:48,813 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|)) (.cse3 (+ 4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store .cse4 .cse3 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|))) (.cse1 (select .cse4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) (and (forall ((v_ArrVal_2643 (Array Int Int))) (not (= |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (select (select (store .cse0 .cse1 v_ArrVal_2643) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|)))) (forall ((|ULTIMATE.start_dll_circular_create_~last~0#1.offset| Int) (v_ArrVal_2642 (Array Int Int))) (let ((.cse2 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (= (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store .cse2 .cse3 |ULTIMATE.start_dll_circular_create_~last~0#1.offset|)) .cse1 v_ArrVal_2642) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) (select .cse2 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|)))) (forall ((v_ArrVal_2643 (Array Int Int))) (= .cse1 (select (select (store .cse0 .cse1 v_ArrVal_2643) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|)))))) is different from false [2024-11-24 00:21:48,829 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ 4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) (and (forall ((v_ArrVal_2638 (Array Int Int)) (v_ArrVal_2643 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2638))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (let ((.cse3 (select .cse1 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store .cse1 .cse2 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) .cse3 v_ArrVal_2643) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) .cse3))))) (forall ((v_ArrVal_2638 (Array Int Int)) (v_ArrVal_2643 (Array Int Int))) (not (= (select (select (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2638))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (store (store .cse4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store .cse5 .cse2 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) (select .cse5 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) v_ArrVal_2643))) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (forall ((v_ArrVal_2638 (Array Int Int)) (v_ArrVal_2637 (Array Int Int)) (|ULTIMATE.start_dll_circular_create_~last~0#1.offset| Int) (v_ArrVal_2642 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2637))) (let ((.cse7 (select .cse6 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (= (select (select (store (store .cse6 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store .cse7 .cse2 |ULTIMATE.start_dll_circular_create_~last~0#1.offset|)) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2638) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) v_ArrVal_2642) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) (select .cse7 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))))))) is different from false [2024-11-24 00:21:48,859 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| 4))) (and (forall ((v_ArrVal_2638 (Array Int Int)) (v_ArrVal_2637 (Array Int Int)) (|ULTIMATE.start_dll_circular_create_~last~0#1.offset| Int) (v_ArrVal_2642 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2637))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (= (select .cse0 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) (select (select (store (store .cse1 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store .cse0 .cse2 |ULTIMATE.start_dll_circular_create_~last~0#1.offset|)) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2638) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) v_ArrVal_2642) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|))))) (forall ((v_ArrVal_2638 (Array Int Int)) (v_ArrVal_2643 (Array Int Int))) (not (= |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2638))) (let ((.cse4 (select .cse3 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (store (store .cse3 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store .cse4 .cse2 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) (select .cse4 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) v_ArrVal_2643))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|)))) (forall ((v_ArrVal_2638 (Array Int Int)) (v_ArrVal_2643 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2638))) (let ((.cse7 (select .cse6 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (let ((.cse5 (select .cse7 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|))) (= .cse5 (select (select (store (store .cse6 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store .cse7 .cse2 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) .cse5 v_ArrVal_2643) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|)))))))) is different from false [2024-11-24 00:21:48,880 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| 4))) (and (forall ((v_ArrVal_2638 (Array Int Int)) (v_ArrVal_2635 (Array Int Int)) (v_ArrVal_2643 (Array Int Int))) (not (= (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| v_ArrVal_2635) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2638))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (store (store .cse0 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store .cse1 .cse2 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) (select .cse1 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) v_ArrVal_2643))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (forall ((v_ArrVal_2638 (Array Int Int)) (v_ArrVal_2635 (Array Int Int)) (v_ArrVal_2643 (Array Int Int))) (let ((.cse4 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| v_ArrVal_2635) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2638))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (let ((.cse3 (select .cse5 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|))) (= .cse3 (select (select (store (store .cse4 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store .cse5 .cse2 |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) .cse3 v_ArrVal_2643) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|)))))) (forall ((v_ArrVal_2638 (Array Int Int)) (v_ArrVal_2637 (Array Int Int)) (v_ArrVal_2636 (Array Int Int)) (v_ArrVal_2635 (Array Int Int)) (|ULTIMATE.start_dll_circular_create_~last~0#1.offset| Int) (v_ArrVal_2642 (Array Int Int))) (let ((.cse6 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| v_ArrVal_2636) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2637))) (let ((.cse7 (select .cse6 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (= (select (select (store (store .cse6 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store .cse7 .cse2 |ULTIMATE.start_dll_circular_create_~last~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| v_ArrVal_2635) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_2638) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) v_ArrVal_2642) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) (select .cse7 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|))))))) is different from false [2024-11-24 00:21:48,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:21:48,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2024-11-24 00:21:48,915 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 131 treesize of output 119 [2024-11-24 00:21:48,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 42 treesize of output 40 [2024-11-24 00:21:48,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 40 treesize of output 36 [2024-11-24 00:21:48,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:21:48,939 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:48,940 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:48,945 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-24 00:21:48,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 1 [2024-11-24 00:21:48,947 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:48,947 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:21:48,952 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-24 00:21:48,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 1 [2024-11-24 00:21:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2024-11-24 00:21:49,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674063547] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:21:49,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:21:49,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 30, 32] total 86 [2024-11-24 00:21:49,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266750226] [2024-11-24 00:21:49,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:49,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2024-11-24 00:21:49,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:49,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2024-11-24 00:21:49,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=6025, Unknown=31, NotChecked=966, Total=7310 [2024-11-24 00:21:49,501 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 86 states, 84 states have (on average 1.7857142857142858) internal successors, (150), 78 states have internal predecessors, (150), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:21:53,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:53,866 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2024-11-24 00:21:53,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 00:21:53,868 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 84 states have (on average 1.7857142857142858) internal successors, (150), 78 states have internal predecessors, (150), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 60 [2024-11-24 00:21:53,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:53,869 INFO L225 Difference]: With dead ends: 90 [2024-11-24 00:21:53,869 INFO L226 Difference]: Without dead ends: 90 [2024-11-24 00:21:53,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 68 SyntacticMatches, 4 SemanticMatches, 108 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 2735 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=574, Invalid=10130, Unknown=32, NotChecked=1254, Total=11990 [2024-11-24 00:21:53,875 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 138 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 2709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 519 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:53,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1892 Invalid, 2709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2178 Invalid, 0 Unknown, 519 Unchecked, 1.8s Time] [2024-11-24 00:21:53,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-24 00:21:53,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-24 00:21:53,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 75 states have (on average 1.2133333333333334) internal successors, (91), 86 states have internal predecessors, (91), 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) [2024-11-24 00:21:53,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2024-11-24 00:21:53,879 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 60 [2024-11-24 00:21:53,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:53,879 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2024-11-24 00:21:53,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 84 states have (on average 1.7857142857142858) internal successors, (150), 78 states have internal predecessors, (150), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 00:21:53,880 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2024-11-24 00:21:53,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:21:53,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:53,880 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:53,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-24 00:21:54,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-24 00:21:54,085 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:54,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:54,086 INFO L85 PathProgramCache]: Analyzing trace with hash 851705376, now seen corresponding path program 1 times [2024-11-24 00:21:54,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:54,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859872509] [2024-11-24 00:21:54,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:54,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:55,443 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:21:55,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:55,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859872509] [2024-11-24 00:21:55,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859872509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:55,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788756123] [2024-11-24 00:21:55,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:55,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:55,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:55,445 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:55,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-24 00:21:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:55,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-24 00:21:55,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:55,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-24 00:21:56,091 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 19 treesize of output 7 [2024-11-24 00:21:56,226 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:21:56,226 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:56,369 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 38 treesize of output 32 [2024-11-24 00:21:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:21:56,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788756123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:21:56,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:21:56,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 12, 12] total 35 [2024-11-24 00:21:56,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248744989] [2024-11-24 00:21:56,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:56,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-24 00:21:56,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:56,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-24 00:21:56,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1098, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 00:21:56,419 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand has 35 states, 35 states have (on average 3.5428571428571427) internal successors, (124), 34 states have internal predecessors, (124), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:21:57,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:57,317 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2024-11-24 00:21:57,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:21:57,318 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.5428571428571427) internal successors, (124), 34 states have internal predecessors, (124), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 67 [2024-11-24 00:21:57,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:57,319 INFO L225 Difference]: With dead ends: 97 [2024-11-24 00:21:57,319 INFO L226 Difference]: Without dead ends: 97 [2024-11-24 00:21:57,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=262, Invalid=1994, Unknown=0, NotChecked=0, Total=2256 [2024-11-24 00:21:57,320 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 214 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:57,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1085 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:21:57,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-24 00:21:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 94. [2024-11-24 00:21:57,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 90 states have internal predecessors, (95), 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) [2024-11-24 00:21:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2024-11-24 00:21:57,329 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 67 [2024-11-24 00:21:57,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:57,330 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2024-11-24 00:21:57,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.5428571428571427) internal successors, (124), 34 states have internal predecessors, (124), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:21:57,330 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2024-11-24 00:21:57,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 00:21:57,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:57,331 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:57,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-24 00:21:57,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-24 00:21:57,532 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:57,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:57,532 INFO L85 PathProgramCache]: Analyzing trace with hash 632659939, now seen corresponding path program 1 times [2024-11-24 00:21:57,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:57,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433326736] [2024-11-24 00:21:57,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:57,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:57,759 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-24 00:21:57,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:57,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433326736] [2024-11-24 00:21:57,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433326736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:57,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:57,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:21:57,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313450611] [2024-11-24 00:21:57,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:57,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:21:57,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:57,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:21:57,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:21:57,762 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:58,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:58,014 INFO L93 Difference]: Finished difference Result 108 states and 115 transitions. [2024-11-24 00:21:58,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:21:58,015 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2024-11-24 00:21:58,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:58,015 INFO L225 Difference]: With dead ends: 108 [2024-11-24 00:21:58,015 INFO L226 Difference]: Without dead ends: 108 [2024-11-24 00:21:58,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:21:58,017 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 21 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:58,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 305 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:21:58,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-24 00:21:58,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 97. [2024-11-24 00:21:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.216867469879518) internal successors, (101), 93 states have internal predecessors, (101), 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) [2024-11-24 00:21:58,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2024-11-24 00:21:58,022 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 68 [2024-11-24 00:21:58,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:58,022 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2024-11-24 00:21:58,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:58,022 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2024-11-24 00:21:58,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 00:21:58,023 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:58,023 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:58,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:21:58,024 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:58,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:58,024 INFO L85 PathProgramCache]: Analyzing trace with hash 632659940, now seen corresponding path program 1 times [2024-11-24 00:21:58,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:58,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665075171] [2024-11-24 00:21:58,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:58,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-24 00:21:58,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:58,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665075171] [2024-11-24 00:21:58,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665075171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:58,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:58,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:21:58,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204356339] [2024-11-24 00:21:58,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:58,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:21:58,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:58,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:21:58,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:21:58,448 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:58,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:58,705 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2024-11-24 00:21:58,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:21:58,705 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2024-11-24 00:21:58,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:58,706 INFO L225 Difference]: With dead ends: 95 [2024-11-24 00:21:58,706 INFO L226 Difference]: Without dead ends: 95 [2024-11-24 00:21:58,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:21:58,707 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 21 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:58,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 384 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:21:58,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-24 00:21:58,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-24 00:21:58,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 83 states have (on average 1.180722891566265) internal successors, (98), 91 states have internal predecessors, (98), 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) [2024-11-24 00:21:58,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 102 transitions. [2024-11-24 00:21:58,712 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 102 transitions. Word has length 68 [2024-11-24 00:21:58,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:58,712 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 102 transitions. [2024-11-24 00:21:58,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:58,713 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 102 transitions. [2024-11-24 00:21:58,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-24 00:21:58,713 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:58,713 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:58,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 00:21:58,714 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:58,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:58,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1862344475, now seen corresponding path program 1 times [2024-11-24 00:21:58,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:58,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765700526] [2024-11-24 00:21:58,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:58,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:58,918 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-24 00:21:58,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:58,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765700526] [2024-11-24 00:21:58,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765700526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:58,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:58,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:21:58,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867400992] [2024-11-24 00:21:58,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:58,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:21:58,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:58,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:21:58,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:21:58,921 INFO L87 Difference]: Start difference. First operand 95 states and 102 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:59,074 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2024-11-24 00:21:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:21:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 69 [2024-11-24 00:21:59,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:59,075 INFO L225 Difference]: With dead ends: 95 [2024-11-24 00:21:59,075 INFO L226 Difference]: Without dead ends: 95 [2024-11-24 00:21:59,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:21:59,076 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 21 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:59,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 393 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:21:59,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-24 00:21:59,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-24 00:21:59,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 83 states have (on average 1.1686746987951808) internal successors, (97), 91 states have internal predecessors, (97), 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) [2024-11-24 00:21:59,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 101 transitions. [2024-11-24 00:21:59,085 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 101 transitions. Word has length 69 [2024-11-24 00:21:59,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:59,086 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 101 transitions. [2024-11-24 00:21:59,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:21:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 101 transitions. [2024-11-24 00:21:59,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-24 00:21:59,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:59,087 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:59,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 00:21:59,088 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:21:59,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:59,089 INFO L85 PathProgramCache]: Analyzing trace with hash 249312820, now seen corresponding path program 2 times [2024-11-24 00:21:59,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:59,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486903517] [2024-11-24 00:21:59,089 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:21:59,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:59,131 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:21:59,134 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:21:59,277 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:21:59,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:59,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486903517] [2024-11-24 00:21:59,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486903517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:59,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894371674] [2024-11-24 00:21:59,277 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:21:59,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:59,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:59,280 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:59,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-24 00:21:59,845 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:21:59,845 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:21:59,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:21:59,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:59,943 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:21:59,943 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:22:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:22:00,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894371674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:22:00,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:22:00,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-11-24 00:22:00,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048897778] [2024-11-24 00:22:00,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:22:00,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:22:00,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:00,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:22:00,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:22:00,059 INFO L87 Difference]: Start difference. First operand 95 states and 101 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:22:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:00,124 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2024-11-24 00:22:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:22:00,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 70 [2024-11-24 00:22:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:00,125 INFO L225 Difference]: With dead ends: 84 [2024-11-24 00:22:00,125 INFO L226 Difference]: Without dead ends: 84 [2024-11-24 00:22:00,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 135 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:22:00,129 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 104 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:00,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 242 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:22:00,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-24 00:22:00,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-24 00:22:00,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.1643835616438356) internal successors, (85), 80 states have internal predecessors, (85), 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) [2024-11-24 00:22:00,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2024-11-24 00:22:00,132 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 70 [2024-11-24 00:22:00,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:00,132 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2024-11-24 00:22:00,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:22:00,132 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2024-11-24 00:22:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-24 00:22:00,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:00,137 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:00,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-24 00:22:00,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:00,338 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:22:00,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1255840446, now seen corresponding path program 1 times [2024-11-24 00:22:00,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:00,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174406133] [2024-11-24 00:22:00,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:00,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:00,619 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-24 00:22:00,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:00,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174406133] [2024-11-24 00:22:00,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174406133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:00,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195560336] [2024-11-24 00:22:00,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:00,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:00,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:00,624 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:22:00,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-24 00:22:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:00,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-11-24 00:22:00,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:00,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:22:01,132 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:22:01,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:22:01,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:22:01,234 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-24 00:22:01,234 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2024-11-24 00:22:01,314 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-24 00:22:01,314 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 1 case distinctions, treesize of input 24 treesize of output 17 [2024-11-24 00:22:01,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-24 00:22:01,696 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-24 00:22:01,696 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 42 [2024-11-24 00:22:01,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:01,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:01,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:01,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 29 [2024-11-24 00:22:02,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:02,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2024-11-24 00:22:02,058 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:22:02,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:22:02,775 INFO L349 Elim1Store]: treesize reduction 5, result has 86.8 percent of original size [2024-11-24 00:22:02,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-24 00:22:03,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:03,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 56 [2024-11-24 00:22:03,130 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 175 treesize of output 159 [2024-11-24 00:22:03,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 135 treesize of output 123 [2024-11-24 00:22:03,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 123 treesize of output 117 [2024-11-24 00:22:03,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 38 treesize of output 36 [2024-11-24 00:22:03,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195560336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:03,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:22:03,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 24] total 29 [2024-11-24 00:22:03,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973627257] [2024-11-24 00:22:03,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:22:03,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-24 00:22:03,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:03,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-24 00:22:03,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1913, Unknown=18, NotChecked=0, Total=2070 [2024-11-24 00:22:03,480 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand has 30 states, 29 states have (on average 3.6206896551724137) internal successors, (105), 27 states have internal predecessors, (105), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:22:04,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:04,489 INFO L93 Difference]: Finished difference Result 91 states and 96 transitions. [2024-11-24 00:22:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 00:22:04,489 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.6206896551724137) internal successors, (105), 27 states have internal predecessors, (105), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 71 [2024-11-24 00:22:04,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:04,490 INFO L225 Difference]: With dead ends: 91 [2024-11-24 00:22:04,490 INFO L226 Difference]: Without dead ends: 91 [2024-11-24 00:22:04,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=180, Invalid=2558, Unknown=18, NotChecked=0, Total=2756 [2024-11-24 00:22:04,491 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 22 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:04,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 718 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:22:04,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-24 00:22:04,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2024-11-24 00:22:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 74 states have (on average 1.162162162162162) internal successors, (86), 80 states have internal predecessors, (86), 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) [2024-11-24 00:22:04,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2024-11-24 00:22:04,495 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 71 [2024-11-24 00:22:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:04,495 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2024-11-24 00:22:04,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.6206896551724137) internal successors, (105), 27 states have internal predecessors, (105), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:22:04,496 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2024-11-24 00:22:04,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-24 00:22:04,496 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:04,496 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:04,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-24 00:22:04,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:04,697 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:22:04,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:04,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1255840447, now seen corresponding path program 1 times [2024-11-24 00:22:04,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:04,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334652680] [2024-11-24 00:22:04,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:04,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:06,809 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:22:06,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:06,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334652680] [2024-11-24 00:22:06,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334652680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:06,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834615647] [2024-11-24 00:22:06,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:06,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:06,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:06,812 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:22:06,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-24 00:22:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:07,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-24 00:22:07,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:07,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:22:07,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:22:07,662 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-24 00:22:07,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 14 treesize of output 13 [2024-11-24 00:22:07,693 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:22:07,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:22:07,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:22:07,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:22:07,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:22:07,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-24 00:22:08,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:22:08,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-24 00:22:08,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 20 [2024-11-24 00:22:08,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-24 00:22:09,025 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-24 00:22:09,025 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 58 [2024-11-24 00:22:09,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:09,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 27 [2024-11-24 00:22:09,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:09,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:09,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 29 [2024-11-24 00:22:09,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:09,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:09,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 26 [2024-11-24 00:22:09,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-11-24 00:22:09,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2024-11-24 00:22:10,049 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:22:10,050 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:22:12,698 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:12,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 72 [2024-11-24 00:22:12,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:12,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 56 [2024-11-24 00:22:12,716 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 138 treesize of output 126 [2024-11-24 00:22:12,725 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 299 treesize of output 279 [2024-11-24 00:22:12,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 90 treesize of output 88 [2024-11-24 00:22:12,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 88 treesize of output 84 [2024-11-24 00:22:12,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 129 treesize of output 121 [2024-11-24 00:22:12,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 121 treesize of output 117 [2024-11-24 00:22:12,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 38 treesize of output 36 [2024-11-24 00:22:12,780 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:22:12,781 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:22:12,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:12,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 190 [2024-11-24 00:22:12,790 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:22:12,790 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:22:12,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:12,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 230 treesize of output 174 [2024-11-24 00:22:12,803 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:22:12,803 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:22:12,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 42 [2024-11-24 00:22:12,810 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:22:12,810 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:22:12,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2024-11-24 00:22:13,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834615647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:13,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:22:13,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 24] total 53 [2024-11-24 00:22:13,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927038692] [2024-11-24 00:22:13,246 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:22:13,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-24 00:22:13,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:13,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-24 00:22:13,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=4873, Unknown=18, NotChecked=0, Total=5112 [2024-11-24 00:22:13,249 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand has 54 states, 53 states have (on average 2.2641509433962264) internal successors, (120), 48 states have internal predecessors, (120), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:22:15,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:15,864 INFO L93 Difference]: Finished difference Result 86 states and 91 transitions. [2024-11-24 00:22:15,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 00:22:15,864 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 2.2641509433962264) internal successors, (120), 48 states have internal predecessors, (120), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 71 [2024-11-24 00:22:15,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:15,865 INFO L225 Difference]: With dead ends: 86 [2024-11-24 00:22:15,865 INFO L226 Difference]: Without dead ends: 86 [2024-11-24 00:22:15,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1605 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=401, Invalid=8137, Unknown=18, NotChecked=0, Total=8556 [2024-11-24 00:22:15,867 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 49 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 1651 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 1656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:15,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1258 Invalid, 1656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1651 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:22:15,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-24 00:22:15,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-24 00:22:15,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 76 states have (on average 1.144736842105263) internal successors, (87), 82 states have internal predecessors, (87), 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) [2024-11-24 00:22:15,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2024-11-24 00:22:15,871 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 71 [2024-11-24 00:22:15,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:15,871 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2024-11-24 00:22:15,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 2.2641509433962264) internal successors, (120), 48 states have internal predecessors, (120), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:22:15,871 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2024-11-24 00:22:15,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-24 00:22:15,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:15,872 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:15,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-24 00:22:16,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-24 00:22:16,073 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:22:16,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:16,073 INFO L85 PathProgramCache]: Analyzing trace with hash 276350635, now seen corresponding path program 1 times [2024-11-24 00:22:16,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:16,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228991557] [2024-11-24 00:22:16,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:16,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:16,300 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-24 00:22:16,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:16,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228991557] [2024-11-24 00:22:16,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228991557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:22:16,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:22:16,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:22:16,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922459175] [2024-11-24 00:22:16,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:22:16,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:22:16,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:16,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:22:16,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:22:16,303 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:22:16,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:16,462 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2024-11-24 00:22:16,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:22:16,462 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 72 [2024-11-24 00:22:16,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:16,463 INFO L225 Difference]: With dead ends: 85 [2024-11-24 00:22:16,463 INFO L226 Difference]: Without dead ends: 85 [2024-11-24 00:22:16,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:22:16,464 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 11 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:16,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 307 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:22:16,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-24 00:22:16,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-24 00:22:16,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 76 states have (on average 1.118421052631579) internal successors, (85), 81 states have internal predecessors, (85), 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) [2024-11-24 00:22:16,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2024-11-24 00:22:16,468 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 72 [2024-11-24 00:22:16,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:16,468 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2024-11-24 00:22:16,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:22:16,468 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2024-11-24 00:22:16,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-24 00:22:16,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:16,469 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:16,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 00:22:16,470 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:22:16,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:16,470 INFO L85 PathProgramCache]: Analyzing trace with hash -717283348, now seen corresponding path program 1 times [2024-11-24 00:22:16,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:16,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846913624] [2024-11-24 00:22:16,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:16,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:17,849 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:22:17,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:17,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846913624] [2024-11-24 00:22:17,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846913624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:17,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123650070] [2024-11-24 00:22:17,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:17,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:17,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:17,851 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:22:17,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-24 00:22:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:18,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-11-24 00:22:18,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:18,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:22:18,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-11-24 00:22:18,383 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:22:18,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:22:18,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:22:18,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:22:18,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-24 00:22:18,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2024-11-24 00:22:19,238 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-24 00:22:19,238 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2024-11-24 00:22:19,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:19,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:19,372 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:19,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 29 [2024-11-24 00:22:19,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:19,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2024-11-24 00:22:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:22:19,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:22:21,079 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:21,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 56 [2024-11-24 00:22:21,083 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 185 treesize of output 169 [2024-11-24 00:22:21,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 145 treesize of output 139 [2024-11-24 00:22:21,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 139 treesize of output 127 [2024-11-24 00:22:21,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 40 treesize of output 38 [2024-11-24 00:22:21,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123650070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:21,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:22:21,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24] total 43 [2024-11-24 00:22:21,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144803780] [2024-11-24 00:22:21,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:22:21,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-24 00:22:21,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:21,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-24 00:22:21,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=3433, Unknown=12, NotChecked=0, Total=3660 [2024-11-24 00:22:21,396 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand has 44 states, 43 states have (on average 2.6744186046511627) internal successors, (115), 40 states have internal predecessors, (115), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:22:23,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:23,357 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2024-11-24 00:22:23,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:22:23,357 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 2.6744186046511627) internal successors, (115), 40 states have internal predecessors, (115), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 74 [2024-11-24 00:22:23,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:23,358 INFO L225 Difference]: With dead ends: 86 [2024-11-24 00:22:23,358 INFO L226 Difference]: Without dead ends: 86 [2024-11-24 00:22:23,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 90 SyntacticMatches, 4 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=343, Invalid=5497, Unknown=12, NotChecked=0, Total=5852 [2024-11-24 00:22:23,359 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 41 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:23,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 915 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:22:23,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-24 00:22:23,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-24 00:22:23,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 82 states have internal predecessors, (86), 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) [2024-11-24 00:22:23,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2024-11-24 00:22:23,362 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 74 [2024-11-24 00:22:23,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:23,362 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2024-11-24 00:22:23,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 2.6744186046511627) internal successors, (115), 40 states have internal predecessors, (115), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:22:23,362 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2024-11-24 00:22:23,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-24 00:22:23,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:23,363 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:23,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-24 00:22:23,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-24 00:22:23,563 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:22:23,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:23,564 INFO L85 PathProgramCache]: Analyzing trace with hash -690359272, now seen corresponding path program 1 times [2024-11-24 00:22:23,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:23,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259143328] [2024-11-24 00:22:23,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:23,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:24,739 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:22:24,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:24,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259143328] [2024-11-24 00:22:24,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259143328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:24,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766517871] [2024-11-24 00:22:24,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:24,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:24,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:24,742 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:22:24,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-24 00:22:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:25,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-11-24 00:22:25,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:25,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:22:25,240 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:22:25,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:22:25,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:22:25,411 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-24 00:22:25,411 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2024-11-24 00:22:25,511 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-24 00:22:25,511 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 1 case distinctions, treesize of input 24 treesize of output 17 [2024-11-24 00:22:25,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2024-11-24 00:22:25,844 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-24 00:22:25,844 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 33 [2024-11-24 00:22:25,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:25,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:25,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:25,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 22 [2024-11-24 00:22:26,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:26,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 27 [2024-11-24 00:22:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:22:26,275 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:22:26,513 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3913 (Array Int Int))) (or (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base| v_ArrVal_3913) |c_ULTIMATE.start_main_~s~0#1.base|) 0) |c_ULTIMATE.start_main_~s~0#1.base|)) (not (= (let ((.cse0 (+ 8 |c_ULTIMATE.start_dll_circular_update_at_~head#1.offset|))) (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base|) .cse0 (select v_ArrVal_3913 .cse0))) v_ArrVal_3913)))) is different from false [2024-11-24 00:22:26,863 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_9 Int) (|v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| Int) (v_ArrVal_3912 (Array Int Int))) (or (< |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| |c_ULTIMATE.start_main_~s~0#1.offset|) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (store (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_#t~mem12#1.base| v_ArrVal_3912) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| 8) v_DerPreprocessor_9) 0))))) is different from false [2024-11-24 00:22:26,881 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_9 Int) (|v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| Int) (v_ArrVal_3912 (Array Int Int))) (or (< |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| |c_ULTIMATE.start_main_~s~0#1.offset|) (not (= (select (store (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_update_at_~head#1.base|) |c_ULTIMATE.start_dll_circular_update_at_~head#1.offset|) v_ArrVal_3912) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| 8) v_DerPreprocessor_9) 0) |c_ULTIMATE.start_main_~s~0#1.base|)))) is different from false [2024-11-24 00:22:31,239 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_9 Int) (|v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| Int) (v_ArrVal_3912 (Array Int Int))) (or (not (= |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (select (store (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) v_ArrVal_3912) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) (+ |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| 8) v_DerPreprocessor_9) 0))) (< |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) is different from false [2024-11-24 00:22:31,252 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_9 Int) (|v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| Int) (v_ArrVal_3912 (Array Int Int))) (or (not (= (select (store (select (let ((.cse0 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store .cse0 (+ 4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) (select .cse0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) v_ArrVal_3912)) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) (+ |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| 8) v_DerPreprocessor_9) 0) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|)) (< |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) is different from false [2024-11-24 00:22:31,267 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3909 (Array Int Int)) (v_DerPreprocessor_9 Int) (|v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| Int) (v_ArrVal_3912 (Array Int Int))) (or (not (= |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (select (store (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_3909))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|))) (store (store .cse0 |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| (store .cse1 (+ 4 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) (select .cse1 |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|) v_ArrVal_3912))) |c_ULTIMATE.start_dll_circular_create_~head~0#1.base|) (+ |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| 8) v_DerPreprocessor_9) 0))) (< |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| |c_ULTIMATE.start_dll_circular_create_~head~0#1.offset|))) is different from false [2024-11-24 00:22:31,302 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3909 (Array Int Int)) (v_DerPreprocessor_9 Int) (|v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| Int) (v_ArrVal_3912 (Array Int Int))) (or (< |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) (not (= (select (store (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_3909))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (store (store .cse0 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store .cse1 (+ |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| 4) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) (select .cse1 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) v_ArrVal_3912))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) (+ |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| 8) v_DerPreprocessor_9) 0) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|)))) is different from false [2024-11-24 00:22:31,323 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3908 (Array Int Int)) (v_ArrVal_3909 (Array Int Int)) (v_DerPreprocessor_9 Int) (|v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| Int) (v_ArrVal_3912 (Array Int Int))) (or (< |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) (not (= (select (store (select (let ((.cse0 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_circular_create_~head~0#1.base| v_ArrVal_3908) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base| v_ArrVal_3909))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|))) (store (store .cse0 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base| (store .cse1 (+ |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset| 4) |c_ULTIMATE.start_dll_circular_create_~last~0#1.base|)) (select .cse1 |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.offset|) v_ArrVal_3912))) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|) (+ |v_ULTIMATE.start_dll_circular_update_at_~head#1.offset_80| 8) v_DerPreprocessor_9) 0) |c_ULTIMATE.start_dll_circular_create_~new_head~0#1.base|)))) is different from false [2024-11-24 00:22:31,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:31,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 74 [2024-11-24 00:22:31,363 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 226 treesize of output 218 [2024-11-24 00:22:31,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:31,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 262 treesize of output 262 [2024-11-24 00:22:31,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:31,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 261 treesize of output 264 [2024-11-24 00:22:31,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:31,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 331 treesize of output 328 [2024-11-24 00:22:31,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 308 treesize of output 306 [2024-11-24 00:22:32,661 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 5 not checked. [2024-11-24 00:22:32,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766517871] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:22:32,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:22:32,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 26, 28] total 69 [2024-11-24 00:22:32,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116733177] [2024-11-24 00:22:32,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:22:32,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-11-24 00:22:32,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:22:32,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-11-24 00:22:32,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=3406, Unknown=49, NotChecked=1000, Total=4692 [2024-11-24 00:22:32,663 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand has 69 states, 69 states have (on average 2.420289855072464) internal successors, (167), 62 states have internal predecessors, (167), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:22:34,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:22:34,303 INFO L93 Difference]: Finished difference Result 84 states and 87 transitions. [2024-11-24 00:22:34,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:22:34,304 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 2.420289855072464) internal successors, (167), 62 states have internal predecessors, (167), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 75 [2024-11-24 00:22:34,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:22:34,305 INFO L225 Difference]: With dead ends: 84 [2024-11-24 00:22:34,305 INFO L226 Difference]: Without dead ends: 84 [2024-11-24 00:22:34,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 109 SyntacticMatches, 8 SemanticMatches, 75 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 1227 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=297, Invalid=4378, Unknown=49, NotChecked=1128, Total=5852 [2024-11-24 00:22:34,306 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 94 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 540 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:22:34,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 936 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1168 Invalid, 0 Unknown, 540 Unchecked, 0.9s Time] [2024-11-24 00:22:34,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-24 00:22:34,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 83. [2024-11-24 00:22:34,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 74 states have (on average 1.1081081081081081) internal successors, (82), 79 states have internal predecessors, (82), 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) [2024-11-24 00:22:34,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 86 transitions. [2024-11-24 00:22:34,308 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 86 transitions. Word has length 75 [2024-11-24 00:22:34,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:22:34,309 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 86 transitions. [2024-11-24 00:22:34,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 2.420289855072464) internal successors, (167), 62 states have internal predecessors, (167), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:22:34,309 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 86 transitions. [2024-11-24 00:22:34,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 00:22:34,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:22:34,310 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:22:34,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-24 00:22:34,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-24 00:22:34,510 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 31 more)] === [2024-11-24 00:22:34,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:22:34,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1125752282, now seen corresponding path program 1 times [2024-11-24 00:22:34,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:22:34,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974416600] [2024-11-24 00:22:34,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:34,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:22:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:22:36,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:22:36,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974416600] [2024-11-24 00:22:36,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974416600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:22:36,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673257655] [2024-11-24 00:22:36,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:22:36,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:22:36,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:22:36,734 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:22:36,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3469710b-101d-46c7-bab8-35ddc229d3aa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-24 00:22:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:22:37,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 119 conjuncts are in the unsatisfiable core [2024-11-24 00:22:37,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:22:37,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-24 00:22:37,311 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-24 00:22:37,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-24 00:22:37,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:22:37,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:22:37,513 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-24 00:22:37,513 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 43 [2024-11-24 00:22:37,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-24 00:22:37,679 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-24 00:22:37,679 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 1 case distinctions, treesize of input 19 treesize of output 18 [2024-11-24 00:22:37,697 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-24 00:22:37,697 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 1 case distinctions, treesize of input 27 treesize of output 22 [2024-11-24 00:22:37,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2024-11-24 00:22:37,805 INFO L349 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2024-11-24 00:22:37,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 41 [2024-11-24 00:22:38,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:38,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:38,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:38,496 INFO L349 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2024-11-24 00:22:38,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 78 [2024-11-24 00:22:38,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:38,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 37 [2024-11-24 00:22:38,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:38,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:22:38,713 INFO L349 Elim1Store]: treesize reduction 61, result has 10.3 percent of original size [2024-11-24 00:22:38,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 44 [2024-11-24 00:22:38,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2024-11-24 00:22:38,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2024-11-24 00:22:39,323 INFO L349 Elim1Store]: treesize reduction 33, result has 19.5 percent of original size [2024-11-24 00:22:39,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 39 [2024-11-24 00:22:39,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:22:39,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2024-11-24 00:22:39,620 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:22:39,620 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:23:47,001 INFO L349 Elim1Store]: treesize reduction 51, result has 45.7 percent of original size [2024-11-24 00:23:47,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 9757 treesize of output 7621 [2024-11-24 00:23:47,204 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:23:47,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 8403 treesize of output 8017 [2024-11-24 00:23:47,610 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:23:47,623 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:23:47,625 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:23:47,638 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:23:49,638 INFO L349 Elim1Store]: treesize reduction 482, result has 27.4 percent of original size [2024-11-24 00:23:49,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 4055 treesize of output 4180 [2024-11-24 00:23:50,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:23:50,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 30 [2024-11-24 00:23:51,000 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:23:51,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 278 treesize of output 268 [2024-11-24 00:23:51,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 162 treesize of output 154 [2024-11-24 00:24:01,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-11-24 00:24:03,319 INFO L349 Elim1Store]: treesize reduction 29, result has 31.0 percent of original size [2024-11-24 00:24:03,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 408 treesize of output 410 [2024-11-24 00:24:19,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 145 treesize of output 137 [2024-11-24 00:25:00,837 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:00,839 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:00,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:25:00,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 2037 [2024-11-24 00:25:01,856 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:01,858 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:01,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 17 [2024-11-24 00:25:02,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:25:03,858 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:03,860 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:04,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:25:04,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 2038 treesize of output 2060 [2024-11-24 00:25:05,920 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:05,922 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:05,997 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:25:05,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 64 [2024-11-24 00:25:06,034 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:06,037 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:06,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2024-11-24 00:25:10,701 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:10,710 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:10,712 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:10,727 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:25:15,161 INFO L349 Elim1Store]: treesize reduction 96, result has 44.5 percent of original size [2024-11-24 00:25:15,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 11606 treesize of output 11706 [2024-11-24 00:26:27,339 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:27,341 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:27,492 INFO L224 Elim1Store]: Index analysis took 197 ms [2024-11-24 00:26:27,734 INFO L349 Elim1Store]: treesize reduction 81, result has 11.0 percent of original size [2024-11-24 00:26:27,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 66 [2024-11-24 00:26:28,274 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:28,276 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:28,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:26:28,400 INFO L224 Elim1Store]: Index analysis took 196 ms [2024-11-24 00:26:28,626 INFO L349 Elim1Store]: treesize reduction 81, result has 11.0 percent of original size [2024-11-24 00:26:28,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 66 [2024-11-24 00:26:29,253 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:29,255 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:29,326 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:29,396 INFO L224 Elim1Store]: Index analysis took 189 ms [2024-11-24 00:26:29,534 INFO L349 Elim1Store]: treesize reduction 81, result has 11.0 percent of original size [2024-11-24 00:26:29,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 66 [2024-11-24 00:26:31,833 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:31,835 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:31,968 INFO L224 Elim1Store]: Index analysis took 179 ms [2024-11-24 00:26:32,230 INFO L349 Elim1Store]: treesize reduction 81, result has 11.0 percent of original size [2024-11-24 00:26:32,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 66 [2024-11-24 00:26:40,901 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:40,903 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:41,075 INFO L224 Elim1Store]: Index analysis took 243 ms [2024-11-24 00:26:41,313 INFO L349 Elim1Store]: treesize reduction 81, result has 11.0 percent of original size [2024-11-24 00:26:41,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 66 [2024-11-24 00:26:41,960 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:41,962 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:42,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:26:42,083 INFO L224 Elim1Store]: Index analysis took 170 ms [2024-11-24 00:26:42,307 INFO L349 Elim1Store]: treesize reduction 81, result has 11.0 percent of original size [2024-11-24 00:26:42,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 66 [2024-11-24 00:26:42,878 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:42,880 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:42,958 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:43,031 INFO L224 Elim1Store]: Index analysis took 211 ms [2024-11-24 00:26:43,278 INFO L349 Elim1Store]: treesize reduction 81, result has 11.0 percent of original size [2024-11-24 00:26:43,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 80 treesize of output 66 [2024-11-24 00:26:46,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:26:46,654 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:46,656 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:46,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:26:46,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:26:46,786 INFO L224 Elim1Store]: Index analysis took 144 ms [2024-11-24 00:26:46,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2024-11-24 00:26:48,883 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:48,884 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:48,886 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:48,894 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:26:51,458 INFO L349 Elim1Store]: treesize reduction 26, result has 18.8 percent of original size [2024-11-24 00:26:51,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 14631 treesize of output 14592 [2024-11-24 00:27:00,426 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:00,428 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:00,429 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:00,437 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:00,824 INFO L349 Elim1Store]: treesize reduction 26, result has 18.8 percent of original size [2024-11-24 00:27:00,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 5237 treesize of output 5198 [2024-11-24 00:27:04,782 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:04,784 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:04,785 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:04,794 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:04,955 INFO L349 Elim1Store]: treesize reduction 26, result has 18.8 percent of original size [2024-11-24 00:27:04,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 6000 treesize of output 5961 [2024-11-24 00:27:07,427 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:07,429 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:07,449 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:07,450 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:10,255 INFO L349 Elim1Store]: treesize reduction 47, result has 59.5 percent of original size [2024-11-24 00:27:10,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 12104 treesize of output 12150 [2024-11-24 00:27:46,577 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:46,614 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:47,096 INFO L224 Elim1Store]: Index analysis took 519 ms [2024-11-24 00:27:47,329 INFO L349 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2024-11-24 00:27:47,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 53 [2024-11-24 00:27:50,480 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:50,733 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:53,500 INFO L224 Elim1Store]: Index analysis took 3021 ms [2024-11-24 00:27:53,791 INFO L349 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2024-11-24 00:27:53,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 53 [2024-11-24 00:27:56,158 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:56,509 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:27:57,949 INFO L224 Elim1Store]: Index analysis took 1792 ms [2024-11-24 00:27:58,236 INFO L349 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2024-11-24 00:27:58,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 53 [2024-11-24 00:28:02,215 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:02,484 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:04,952 INFO L224 Elim1Store]: Index analysis took 2738 ms [2024-11-24 00:28:05,041 INFO L349 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2024-11-24 00:28:05,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 53 [2024-11-24 00:28:21,181 INFO L349 Elim1Store]: treesize reduction 66, result has 13.2 percent of original size [2024-11-24 00:28:21,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:22,042 INFO L349 Elim1Store]: treesize reduction 66, result has 13.2 percent of original size [2024-11-24 00:28:22,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:22,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:28:22,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:28:22,591 INFO L349 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2024-11-24 00:28:22,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:23,034 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:23,036 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:23,095 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-24 00:28:23,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2024-11-24 00:28:23,362 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:23,364 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:23,366 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:23,399 INFO L349 Elim1Store]: treesize reduction 5, result has 16.7 percent of original size [2024-11-24 00:28:23,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2024-11-24 00:28:23,580 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:23,582 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:23,643 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-24 00:28:23,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2024-11-24 00:28:24,068 INFO L349 Elim1Store]: treesize reduction 66, result has 13.2 percent of original size [2024-11-24 00:28:24,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:24,706 INFO L349 Elim1Store]: treesize reduction 66, result has 13.2 percent of original size [2024-11-24 00:28:24,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:25,455 INFO L349 Elim1Store]: treesize reduction 66, result has 13.2 percent of original size [2024-11-24 00:28:25,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:26,220 INFO L349 Elim1Store]: treesize reduction 66, result has 13.2 percent of original size [2024-11-24 00:28:26,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:27,061 INFO L349 Elim1Store]: treesize reduction 66, result has 13.2 percent of original size [2024-11-24 00:28:27,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:28:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:28:27,327 INFO L349 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2024-11-24 00:28:27,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:27,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:28:27,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:28:27,596 INFO L349 Elim1Store]: treesize reduction 28, result has 26.3 percent of original size [2024-11-24 00:28:27,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:28,505 INFO L349 Elim1Store]: treesize reduction 66, result has 13.2 percent of original size [2024-11-24 00:28:28,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:29,353 INFO L349 Elim1Store]: treesize reduction 66, result has 13.2 percent of original size [2024-11-24 00:28:29,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:28:30,226 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:30,229 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:30,230 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:30,262 INFO L349 Elim1Store]: treesize reduction 5, result has 16.7 percent of original size [2024-11-24 00:28:30,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2024-11-24 00:28:30,715 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:30,717 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:30,770 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-24 00:28:30,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2024-11-24 00:28:31,148 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:31,151 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:31,212 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-24 00:28:31,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2024-11-24 00:28:31,753 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:31,756 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:31,835 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-24 00:28:31,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2024-11-24 00:28:32,083 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:32,085 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:32,087 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:32,117 INFO L349 Elim1Store]: treesize reduction 5, result has 16.7 percent of original size [2024-11-24 00:28:32,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2024-11-24 00:28:32,320 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:32,322 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:28:32,383 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2024-11-24 00:28:32,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2024-11-24 00:28:48,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:28:48,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1759 treesize of output 1761 [2024-11-24 00:28:52,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:28:52,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1192 treesize of output 1196 [2024-11-24 00:28:54,083 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:28:54,094 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:28:54,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:54,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:54,652 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:28:54,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:54,753 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:28:54,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:55,072 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:28:55,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:55,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:55,465 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:28:55,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:56,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:57,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:57,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:58,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:58,747 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:28:58,787 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:28:59,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:59,309 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:28:59,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:59,589 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:28:59,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:28:59,905 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:29:00,147 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:29:00,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:29:00,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:29:00,962 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:29:02,050 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:29:02,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:29:02,911 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:29:03,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:29:03,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-24 00:29:03,994 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:29:28,920 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:29:28,934 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:29:28,936 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:29:28,951 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:29:29,047 INFO L224 Elim1Store]: Index analysis took 135 ms [2024-11-24 00:29:36,123 WARN L286 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 147 DAG size of output: 76 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-24 00:29:36,123 INFO L349 Elim1Store]: treesize reduction 319, result has 30.8 percent of original size [2024-11-24 00:29:36,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 9996 treesize of output 10241 [2024-11-24 00:30:34,452 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:34,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:30:34,465 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:34,493 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:34,495 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:34,497 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:34,506 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:34,524 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:34,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:30:35,178 INFO L349 Elim1Store]: treesize reduction 236, result has 29.8 percent of original size [2024-11-24 00:30:35,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 402 treesize of output 476 [2024-11-24 00:30:37,584 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:37,600 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:37,603 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:37,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:30:37,611 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:37,633 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:37,635 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:37,637 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:37,647 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:37,656 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:37,658 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:37,667 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:37,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:30:41,280 INFO L349 Elim1Store]: treesize reduction 390, result has 41.8 percent of original size [2024-11-24 00:30:41,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 10 new quantified variables, introduced 50 case distinctions, treesize of input 2172 treesize of output 3114 [2024-11-24 00:30:44,948 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:44,964 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:44,966 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:44,976 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:44,979 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:44,981 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:44,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:30:45,020 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:45,022 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:45,037 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:45,040 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:45,043 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:45,057 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:45,070 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:45,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:30:45,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:30:45,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:30:45,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:30:45,744 INFO L224 Elim1Store]: Index analysis took 725 ms [2024-11-24 00:30:45,882 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:30:52,459 WARN L286 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 263 DAG size of output: 69 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-24 00:30:52,459 INFO L349 Elim1Store]: treesize reduction 826, result has 14.2 percent of original size [2024-11-24 00:30:52,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 10 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 10 new quantified variables, introduced 66 case distinctions, treesize of input 1818 treesize of output 3485 [2024-11-24 00:31:09,974 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:09,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:31:10,006 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:10,024 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:10,026 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:10,028 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:10,038 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:10,056 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:10,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:31:13,203 INFO L349 Elim1Store]: treesize reduction 388, result has 38.6 percent of original size [2024-11-24 00:31:13,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 2519 treesize of output 2924 [2024-11-24 00:31:18,144 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:18,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:31:18,175 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:18,199 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:18,201 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:18,203 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:18,211 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:18,225 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:18,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:31:26,647 WARN L286 SmtUtils]: Spent 8.35s on a formula simplification. DAG size of input: 265 DAG size of output: 138 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-24 00:31:26,648 INFO L349 Elim1Store]: treesize reduction 601, result has 35.2 percent of original size [2024-11-24 00:31:26,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 10 new quantified variables, introduced 50 case distinctions, treesize of input 3331 treesize of output 4170 [2024-11-24 00:31:34,679 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:34,681 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:34,683 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:34,689 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:34,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:31:34,799 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:34,801 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:34,802 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:31:34,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:31:34,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:31:34,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:31:34,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:31:35,733 INFO L224 Elim1Store]: Index analysis took 1001 ms [2024-11-24 00:32:27,624 WARN L286 SmtUtils]: Spent 51.88s on a formula simplification. DAG size of input: 327 DAG size of output: 142 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-24 00:32:27,625 INFO L349 Elim1Store]: treesize reduction 910, result has 28.9 percent of original size [2024-11-24 00:32:27,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 14 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 14 new quantified variables, introduced 103 case distinctions, treesize of input 5724 treesize of output 7597 [2024-11-24 00:33:56,148 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:33:56,150 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:33:56,163 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:33:56,175 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:33:56,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:33:56,250 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:33:56,252 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:33:56,254 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:33:56,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:33:56,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:33:56,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:33:56,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:33:56,486 INFO L224 Elim1Store]: Index analysis took 267 ms [2024-11-24 00:33:56,861 INFO L349 Elim1Store]: treesize reduction 156, result has 11.9 percent of original size [2024-11-24 00:33:56,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 15 case distinctions, treesize of input 537 treesize of output 625 [2024-11-24 00:34:07,973 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:07,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:07,983 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:08,266 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:08,268 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:08,270 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:08,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:08,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:08,381 INFO L224 Elim1Store]: Index analysis took 140 ms [2024-11-24 00:34:08,566 INFO L349 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2024-11-24 00:34:08,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 9243 treesize of output 9140 [2024-11-24 00:34:18,266 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:18,268 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:18,277 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:18,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:18,535 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:18,537 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:18,539 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:18,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:20,497 INFO L349 Elim1Store]: treesize reduction 272, result has 44.8 percent of original size [2024-11-24 00:34:20,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 37 case distinctions, treesize of input 5286 treesize of output 5333 [2024-11-24 00:34:50,703 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:50,705 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:50,715 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:50,717 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:50,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:50,742 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:50,744 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:50,762 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:50,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:50,855 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2024-11-24 00:34:50,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 93 [2024-11-24 00:34:51,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,112 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,158 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,160 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,162 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 57 [2024-11-24 00:34:51,266 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,272 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,274 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,290 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,292 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,294 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 45 [2024-11-24 00:34:51,354 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,376 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,378 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 57 [2024-11-24 00:34:51,468 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,481 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,482 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,484 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,504 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,506 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,508 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,510 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,597 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-11-24 00:34:51,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 96 [2024-11-24 00:34:51,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,821 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,828 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,845 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,847 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 41 [2024-11-24 00:34:51,904 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,906 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,908 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,910 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,911 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,911 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:51,954 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,956 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,958 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:51,960 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,010 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:52,042 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-11-24 00:34:52,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 96 [2024-11-24 00:34:52,115 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,117 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,119 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,121 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:52,135 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,155 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,157 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,159 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,161 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,210 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:52,243 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-11-24 00:34:52,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 96 [2024-11-24 00:34:52,376 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:52,390 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,392 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,395 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,414 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,416 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,418 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,420 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:52,505 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-11-24 00:34:52,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 96 [2024-11-24 00:34:52,701 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,702 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,702 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,705 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,706 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:52,714 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,725 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,727 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,729 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,732 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:52,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 33 [2024-11-24 00:34:52,836 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:52,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:52,857 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,859 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:52,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:52,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:52,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 57 [2024-11-24 00:34:53,064 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:53,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:53,085 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,087 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:53,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 57 [2024-11-24 00:34:53,163 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,165 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,167 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,170 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,172 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,174 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,183 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-24 00:34:53,197 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,199 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:53,206 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,208 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,210 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,221 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,222 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,225 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,227 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:53,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 33 [2024-11-24 00:34:53,366 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:53,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:53,388 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,390 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:53,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:53,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 57 [2024-11-24 00:34:53,920 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:34:53,931 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,958 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,960 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,961 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,969 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,982 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 00:34:53,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 00:35:03,410 WARN L286 SmtUtils]: Spent 9.37s on a formula simplification. DAG size of input: 265 DAG size of output: 145 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-24 00:35:03,411 INFO L349 Elim1Store]: treesize reduction 574, result has 38.1 percent of original size [2024-11-24 00:35:03,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 10 new quantified variables, introduced 50 case distinctions, treesize of input 3319 treesize of output 4185