./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9d8386495cfc7d925686020c12a2509d702f4bf2aed1f5dea2d7da468cac3b6e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:10:10,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:10:10,479 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:10:10,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:10:10,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:10:10,539 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:10:10,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:10:10,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:10:10,542 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:10:10,542 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:10:10,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:10:10,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:10:10,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:10:10,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:10:10,545 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:10:10,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:10:10,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:10:10,546 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:10:10,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:10:10,546 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:10:10,546 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:10:10,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:10:10,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:10:10,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:10:10,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:10:10,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:10:10,547 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:10:10,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:10:10,547 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:10:10,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:10:10,548 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:10:10,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:10:10,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:10:10,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:10:10,548 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:10:10,548 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:10:10,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:10:10,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:10:10,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:10:10,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:10:10,549 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:10:10,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:10:10,549 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:10:10,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:10:10,549 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:10:10,549 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:10:10,550 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:10:10,550 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:10:10,551 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_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB 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 ! call(reach_error())) ) 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 -> 9d8386495cfc7d925686020c12a2509d702f4bf2aed1f5dea2d7da468cac3b6e [2024-11-27 20:10:10,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:10:11,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:10:11,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:10:11,020 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:10:11,020 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:10:11,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-2.i [2024-11-27 20:10:14,666 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/data/1c7608307/3cb83313b164462492733c33145e32dc/FLAGb14bbc37c [2024-11-27 20:10:15,000 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:10:15,001 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/sv-benchmarks/c/forester-heap/dll-simple-white-blue-2.i [2024-11-27 20:10:15,014 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/data/1c7608307/3cb83313b164462492733c33145e32dc/FLAGb14bbc37c [2024-11-27 20:10:15,030 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/data/1c7608307/3cb83313b164462492733c33145e32dc [2024-11-27 20:10:15,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:10:15,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:10:15,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:10:15,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:10:15,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:10:15,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c43deaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15, skipping insertion in model container [2024-11-27 20:10:15,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,100 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:10:15,463 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/sv-benchmarks/c/forester-heap/dll-simple-white-blue-2.i[22778,22791] [2024-11-27 20:10:15,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:10:15,483 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:10:15,538 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/sv-benchmarks/c/forester-heap/dll-simple-white-blue-2.i[22778,22791] [2024-11-27 20:10:15,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:10:15,579 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:10:15,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15 WrapperNode [2024-11-27 20:10:15,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:10:15,581 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:10:15,581 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:10:15,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:10:15,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,630 INFO L138 Inliner]: procedures = 119, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 115 [2024-11-27 20:10:15,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:10:15,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:10:15,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:10:15,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:10:15,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,692 INFO L175 MemorySlicer]: Split 29 memory accesses to 2 slices as follows [2, 27]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 15 writes are split as follows [0, 15]. [2024-11-27 20:10:15,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,710 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,713 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:10:15,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:10:15,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:10:15,735 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:10:15,740 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (1/1) ... [2024-11-27 20:10:15,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:10:15,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:15,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:10:15,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:10:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:10:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:10:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:10:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:10:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:10:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:10:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:10:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:10:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:10:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:10:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:10:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:10:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:10:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:10:15,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:10:16,043 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:10:16,045 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:10:16,449 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-27 20:10:16,449 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:10:16,460 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:10:16,461 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-27 20:10:16,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:10:16 BoogieIcfgContainer [2024-11-27 20:10:16,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:10:16,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:10:16,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:10:16,476 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:10:16,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:10:15" (1/3) ... [2024-11-27 20:10:16,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361e30f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:10:16, skipping insertion in model container [2024-11-27 20:10:16,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:10:15" (2/3) ... [2024-11-27 20:10:16,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361e30f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:10:16, skipping insertion in model container [2024-11-27 20:10:16,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:10:16" (3/3) ... [2024-11-27 20:10:16,481 INFO L128 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue-2.i [2024-11-27 20:10:16,498 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:10:16,500 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dll-simple-white-blue-2.i that has 1 procedures, 33 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-11-27 20:10:16,553 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:10:16,564 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=LoopHeads, 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;@6e275e23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:10:16,564 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:10:16,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:16,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-27 20:10:16,576 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:16,576 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:16,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:16,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:16,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1502925872, now seen corresponding path program 1 times [2024-11-27 20:10:16,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:16,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049044623] [2024-11-27 20:10:16,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:16,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:16,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:16,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049044623] [2024-11-27 20:10:16,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049044623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:16,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:16,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:10:16,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039366103] [2024-11-27 20:10:16,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:16,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:10:16,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:16,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:10:16,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:10:16,925 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:16,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:16,945 INFO L93 Difference]: Finished difference Result 60 states and 89 transitions. [2024-11-27 20:10:16,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:10:16,948 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-27 20:10:16,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:16,957 INFO L225 Difference]: With dead ends: 60 [2024-11-27 20:10:16,957 INFO L226 Difference]: Without dead ends: 25 [2024-11-27 20:10:16,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:10:16,966 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:16,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:10:16,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-27 20:10:17,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-27 20:10:17,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:17,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2024-11-27 20:10:17,014 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 12 [2024-11-27 20:10:17,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:17,015 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2024-11-27 20:10:17,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:17,015 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-11-27 20:10:17,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 20:10:17,018 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:17,018 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:17,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:10:17,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:17,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:17,020 INFO L85 PathProgramCache]: Analyzing trace with hash 311531199, now seen corresponding path program 1 times [2024-11-27 20:10:17,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:17,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674754237] [2024-11-27 20:10:17,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:17,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:18,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:18,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:18,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674754237] [2024-11-27 20:10:18,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674754237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:18,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:18,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:10:18,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446159251] [2024-11-27 20:10:18,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:18,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:10:18,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:18,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:10:18,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:10:18,188 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:18,615 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2024-11-27 20:10:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:10:18,616 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-27 20:10:18,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:18,618 INFO L225 Difference]: With dead ends: 65 [2024-11-27 20:10:18,619 INFO L226 Difference]: Without dead ends: 63 [2024-11-27 20:10:18,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:10:18,620 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 59 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:18,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 114 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:10:18,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-27 20:10:18,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 36. [2024-11-27 20:10:18,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:18,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2024-11-27 20:10:18,631 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 14 [2024-11-27 20:10:18,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:18,631 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-11-27 20:10:18,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:18,633 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2024-11-27 20:10:18,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-27 20:10:18,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:18,634 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:18,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:10:18,634 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:18,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:18,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1946311165, now seen corresponding path program 1 times [2024-11-27 20:10:18,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:18,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736477135] [2024-11-27 20:10:18,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:18,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:19,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:19,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736477135] [2024-11-27 20:10:19,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736477135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:19,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706685941] [2024-11-27 20:10:19,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:19,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:19,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:19,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:19,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:10:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:20,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-27 20:10:20,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:20,111 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 [2024-11-27 20:10:20,124 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 11 treesize of output 7 [2024-11-27 20:10:20,349 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-27 20:10:20,369 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 0 case distinctions, treesize of input 65 treesize of output 48 [2024-11-27 20:10:20,392 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 108 treesize of output 72 [2024-11-27 20:10:20,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:20,419 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2024-11-27 20:10:20,446 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 41 treesize of output 35 [2024-11-27 20:10:20,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:20,489 INFO L349 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2024-11-27 20:10:20,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 54 [2024-11-27 20:10:20,544 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 20:10:20,544 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 17 treesize of output 21 [2024-11-27 20:10:20,563 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-27 20:10:20,563 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 2 case distinctions, treesize of input 21 treesize of output 5 [2024-11-27 20:10:20,866 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-27 20:10:20,867 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 20 treesize of output 23 [2024-11-27 20:10:20,903 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 20 treesize of output 9 [2024-11-27 20:10:20,943 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2024-11-27 20:10:20,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 20 treesize of output 22 [2024-11-27 20:10:20,960 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 16 treesize of output 17 [2024-11-27 20:10:21,225 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 18 [2024-11-27 20:10:21,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:21,239 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 17 treesize of output 7 [2024-11-27 20:10:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:21,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:21,514 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:21,515 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 42 treesize of output 43 [2024-11-27 20:10:21,526 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 103 treesize of output 79 [2024-11-27 20:10:21,537 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 63 treesize of output 61 [2024-11-27 20:10:21,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:21,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706685941] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:10:21,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:10:21,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-11-27 20:10:22,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309439513] [2024-11-27 20:10:22,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:22,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:10:22,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:22,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:10:22,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:10:22,003 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:23,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:23,504 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2024-11-27 20:10:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:10:23,506 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-27 20:10:23,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:23,507 INFO L225 Difference]: With dead ends: 97 [2024-11-27 20:10:23,507 INFO L226 Difference]: Without dead ends: 95 [2024-11-27 20:10:23,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:10:23,509 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 219 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:23,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 220 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:10:23,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-27 20:10:23,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 32. [2024-11-27 20:10:23,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:23,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-11-27 20:10:23,519 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 17 [2024-11-27 20:10:23,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:23,520 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-11-27 20:10:23,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:23,520 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-11-27 20:10:23,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-27 20:10:23,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:23,521 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:23,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:10:23,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-27 20:10:23,725 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:23,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:23,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1962180340, now seen corresponding path program 1 times [2024-11-27 20:10:23,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:23,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076675599] [2024-11-27 20:10:23,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:23,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:24,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:24,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:24,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076675599] [2024-11-27 20:10:24,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076675599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:24,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349945534] [2024-11-27 20:10:24,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:24,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:24,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:24,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:24,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:10:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:24,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:10:24,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:24,423 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 31 treesize of output 9 [2024-11-27 20:10:24,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:24,493 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:10:24,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349945534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:24,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:24,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-27 20:10:24,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564719626] [2024-11-27 20:10:24,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:24,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:10:24,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:24,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:10:24,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:10:24,495 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:24,679 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2024-11-27 20:10:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:10:24,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-27 20:10:24,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:24,681 INFO L225 Difference]: With dead ends: 50 [2024-11-27 20:10:24,684 INFO L226 Difference]: Without dead ends: 40 [2024-11-27 20:10:24,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:10:24,685 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:24,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 90 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:10:24,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-27 20:10:24,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2024-11-27 20:10:24,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-27 20:10:24,701 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 17 [2024-11-27 20:10:24,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:24,701 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-27 20:10:24,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:24,702 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-11-27 20:10:24,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-27 20:10:24,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:24,703 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:24,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:24,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:24,903 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:24,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:24,904 INFO L85 PathProgramCache]: Analyzing trace with hash -750692923, now seen corresponding path program 1 times [2024-11-27 20:10:24,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:24,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206243381] [2024-11-27 20:10:24,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:24,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:25,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:25,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206243381] [2024-11-27 20:10:25,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206243381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:25,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790640475] [2024-11-27 20:10:25,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:25,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:25,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:25,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:25,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:10:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:25,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-27 20:10:25,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:25,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2024-11-27 20:10:25,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2024-11-27 20:10:25,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 12 treesize of output 17 [2024-11-27 20:10:25,744 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-27 20:10:25,745 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 31 treesize of output 28 [2024-11-27 20:10:25,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 12 treesize of output 17 [2024-11-27 20:10:25,795 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-27 20:10:25,796 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 31 treesize of output 28 [2024-11-27 20:10:26,717 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:26,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 155 treesize of output 187 [2024-11-27 20:10:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:29,022 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:29,352 INFO L349 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2024-11-27 20:10:29,353 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 28 treesize of output 23 [2024-11-27 20:10:29,535 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:29,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 33 treesize of output 40 [2024-11-27 20:10:29,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:29,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 34 [2024-11-27 20:10:29,560 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 [2024-11-27 20:10:29,587 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 [2024-11-27 20:10:29,646 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~head~0#1.base_15| Int)) (or (forall ((v_arrayElimArr_9 (Array Int Int))) (or (= (select (select (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~head~0#1.base_15| v_arrayElimArr_9) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0) (not (= (select v_arrayElimArr_9 0) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (= |c_ULTIMATE.start_main_~head~0#1.base| |v_ULTIMATE.start_main_~head~0#1.base_15|))) (forall ((|v_ULTIMATE.start_main_~head~0#1.base_15| Int)) (or (= |c_ULTIMATE.start_main_~head~0#1.base| |v_ULTIMATE.start_main_~head~0#1.base_15|) (forall ((v_arrayElimArr_8 (Array Int Int))) (or (= (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~head~0#1.base_15| v_arrayElimArr_8) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0) (not (= |c_ULTIMATE.start_main_~head~0#1.base| (select v_arrayElimArr_8 0))))))) (or (and (forall ((v_arrayElimArr_8 (Array Int Int)) (|v_ULTIMATE.start_main_~head~0#1.base_15| Int)) (or (= (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~head~0#1.base_15| v_arrayElimArr_8) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0) (not (= |c_ULTIMATE.start_main_~head~0#1.base| (select v_arrayElimArr_8 0))))) (forall ((|v_ULTIMATE.start_main_~head~0#1.base_15| Int) (v_arrayElimArr_9 (Array Int Int))) (or (= (select (select (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~head~0#1.base_15| v_arrayElimArr_9) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0) (not (= (select v_arrayElimArr_9 0) |c_ULTIMATE.start_main_~head~0#1.offset|))))) (= |c_ULTIMATE.start_main_~head~0#1.offset| 0))) is different from false [2024-11-27 20:10:29,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:29,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790640475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:10:29,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:10:29,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 11] total 22 [2024-11-27 20:10:29,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792251732] [2024-11-27 20:10:29,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:29,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:10:29,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:29,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:10:29,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=359, Unknown=1, NotChecked=38, Total=462 [2024-11-27 20:10:29,904 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:32,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:32,549 INFO L93 Difference]: Finished difference Result 115 states and 137 transitions. [2024-11-27 20:10:32,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:10:32,550 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-27 20:10:32,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:32,551 INFO L225 Difference]: With dead ends: 115 [2024-11-27 20:10:32,552 INFO L226 Difference]: Without dead ends: 96 [2024-11-27 20:10:32,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=188, Invalid=1005, Unknown=1, NotChecked=66, Total=1260 [2024-11-27 20:10:32,554 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 145 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 103 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:32,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 465 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 478 Invalid, 0 Unknown, 103 Unchecked, 1.3s Time] [2024-11-27 20:10:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-27 20:10:32,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 50. [2024-11-27 20:10:32,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 49 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:32,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2024-11-27 20:10:32,572 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 18 [2024-11-27 20:10:32,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:32,573 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2024-11-27 20:10:32,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:32,573 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2024-11-27 20:10:32,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 20:10:32,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:32,574 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:32,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:10:32,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:32,778 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:32,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:32,779 INFO L85 PathProgramCache]: Analyzing trace with hash -948355088, now seen corresponding path program 1 times [2024-11-27 20:10:32,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:32,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761365433] [2024-11-27 20:10:32,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:32,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:32,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:32,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761365433] [2024-11-27 20:10:32,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761365433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:32,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:32,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:10:32,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420392021] [2024-11-27 20:10:32,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:32,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:10:32,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:32,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:10:32,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:10:32,940 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:33,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:33,132 INFO L93 Difference]: Finished difference Result 74 states and 89 transitions. [2024-11-27 20:10:33,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:10:33,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-27 20:10:33,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:33,134 INFO L225 Difference]: With dead ends: 74 [2024-11-27 20:10:33,134 INFO L226 Difference]: Without dead ends: 58 [2024-11-27 20:10:33,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:10:33,135 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 6 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:33,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 72 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:10:33,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-27 20:10:33,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2024-11-27 20:10:33,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 53 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:33,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2024-11-27 20:10:33,160 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 19 [2024-11-27 20:10:33,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:33,160 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2024-11-27 20:10:33,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:33,161 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2024-11-27 20:10:33,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 20:10:33,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:33,162 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:33,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:10:33,162 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:33,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:33,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1341382098, now seen corresponding path program 1 times [2024-11-27 20:10:33,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:33,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079596859] [2024-11-27 20:10:33,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:33,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:33,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:33,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079596859] [2024-11-27 20:10:33,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079596859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:33,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:33,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:10:33,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132408980] [2024-11-27 20:10:33,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:33,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:10:33,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:33,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:10:33,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:10:33,485 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:33,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:33,787 INFO L93 Difference]: Finished difference Result 110 states and 133 transitions. [2024-11-27 20:10:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:10:33,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-27 20:10:33,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:33,789 INFO L225 Difference]: With dead ends: 110 [2024-11-27 20:10:33,789 INFO L226 Difference]: Without dead ends: 74 [2024-11-27 20:10:33,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:10:33,790 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 60 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:33,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 110 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:10:33,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-27 20:10:33,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 48. [2024-11-27 20:10:33,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 47 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2024-11-27 20:10:33,814 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 19 [2024-11-27 20:10:33,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:33,814 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2024-11-27 20:10:33,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:10:33,814 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2024-11-27 20:10:33,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 20:10:33,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:33,815 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:33,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:10:33,815 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:33,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:33,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1916001527, now seen corresponding path program 1 times [2024-11-27 20:10:33,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:33,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963087840] [2024-11-27 20:10:33,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:33,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:34,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:34,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:34,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963087840] [2024-11-27 20:10:34,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963087840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:34,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017417385] [2024-11-27 20:10:34,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:34,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:34,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:34,859 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:34,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:10:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:35,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-27 20:10:35,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:35,058 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 [2024-11-27 20:10:35,130 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 0 case distinctions, treesize of input 221 treesize of output 156 [2024-11-27 20:10:35,174 INFO L349 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2024-11-27 20:10:35,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 344 treesize of output 329 [2024-11-27 20:10:35,187 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 0 case distinctions, treesize of input 253 treesize of output 196 [2024-11-27 20:10:35,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:35,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:35,231 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2024-11-27 20:10:35,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 174 [2024-11-27 20:10:35,248 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 163 treesize of output 139 [2024-11-27 20:10:35,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 94 [2024-11-27 20:10:35,306 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-11-27 20:10:35,306 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 25 treesize of output 29 [2024-11-27 20:10:35,384 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 0 case distinctions, treesize of input 261 treesize of output 188 [2024-11-27 20:10:35,401 INFO L349 Elim1Store]: treesize reduction 101, result has 1.0 percent of original size [2024-11-27 20:10:35,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 431 treesize of output 387 [2024-11-27 20:10:35,413 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-27 20:10:35,419 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 0 case distinctions, treesize of input 273 treesize of output 200 [2024-11-27 20:10:35,436 INFO L349 Elim1Store]: treesize reduction 101, result has 1.0 percent of original size [2024-11-27 20:10:35,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 473 treesize of output 415 [2024-11-27 20:10:35,447 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-27 20:10:35,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:35,756 INFO L349 Elim1Store]: treesize reduction 25, result has 26.5 percent of original size [2024-11-27 20:10:35,756 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 2 case distinctions, treesize of input 103 treesize of output 96 [2024-11-27 20:10:35,832 INFO L349 Elim1Store]: treesize reduction 40, result has 56.0 percent of original size [2024-11-27 20:10:35,833 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 3 case distinctions, treesize of input 61 treesize of output 91 [2024-11-27 20:10:35,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 12 treesize of output 17 [2024-11-27 20:10:35,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:35,891 INFO L349 Elim1Store]: treesize reduction 25, result has 26.5 percent of original size [2024-11-27 20:10:35,891 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 2 case distinctions, treesize of input 50 treesize of output 52 [2024-11-27 20:10:35,958 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 7 treesize of output 5 [2024-11-27 20:10:36,008 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 36 treesize of output 32 [2024-11-27 20:10:36,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:36,037 INFO L349 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2024-11-27 20:10:36,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2024-11-27 20:10:36,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2024-11-27 20:10:36,807 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-27 20:10:36,808 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 36 [2024-11-27 20:10:36,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:10:36,828 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 [2024-11-27 20:10:37,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:10:37,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:37,515 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:37,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 39 treesize of output 46 [2024-11-27 20:10:37,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:37,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 33 treesize of output 40 [2024-11-27 20:10:37,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:37,836 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 210 treesize of output 170 [2024-11-27 20:10:37,873 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:37,873 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 1427 treesize of output 1250 [2024-11-27 20:10:37,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:37,910 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 745 treesize of output 609 [2024-11-27 20:10:37,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:37,995 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 17653 treesize of output 17364 [2024-11-27 20:10:38,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:38,090 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 444 treesize of output 414 [2024-11-27 20:10:38,433 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:38,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 1978 treesize of output 2094 [2024-11-27 20:10:38,604 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 1105 treesize of output 1057 [2024-11-27 20:10:38,669 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 1006 treesize of output 982 [2024-11-27 20:10:38,791 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:38,792 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 1025 treesize of output 1019 [2024-11-27 20:10:39,348 INFO L349 Elim1Store]: treesize reduction 8, result has 93.9 percent of original size [2024-11-27 20:10:39,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1106 treesize of output 1090 [2024-11-27 20:10:39,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:39,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 927 treesize of output 855 [2024-11-27 20:10:40,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:10:40,103 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 839 treesize of output 811 [2024-11-27 20:11:51,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:51,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 14 treesize of output 8 [2024-11-27 20:11:52,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:52,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 6 [2024-11-27 20:11:53,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:53,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 6 [2024-11-27 20:11:53,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:53,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 14 treesize of output 8 [2024-11-27 20:11:53,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:53,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 6 [2024-11-27 20:11:54,218 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:54,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 6 [2024-11-27 20:11:54,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:54,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 6 [2024-11-27 20:11:56,507 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:11:56,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 6 [2024-11-27 20:12:35,048 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:12:38,146 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:12:38,267 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:38,267 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 16 treesize of output 16 [2024-11-27 20:12:39,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:39,465 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 16 treesize of output 16 [2024-11-27 20:12:40,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:40,004 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 16 treesize of output 16 [2024-11-27 20:12:40,416 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:40,416 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 16 treesize of output 16 [2024-11-27 20:12:40,807 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:12:42,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:42,456 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 16 treesize of output 16 [2024-11-27 20:12:42,804 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:42,804 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 16 treesize of output 16 [2024-11-27 20:12:42,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:42,888 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 16 treesize of output 16 [2024-11-27 20:12:43,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:43,093 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 16 treesize of output 16 [2024-11-27 20:12:43,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:12:43,645 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 16 treesize of output 16 [2024-11-27 20:12:58,776 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:07,371 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:14:07,372 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 14 treesize of output 16 [2024-11-27 20:14:07,718 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:20,107 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:35,853 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:36,033 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:36,303 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:36,486 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:36,541 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:36,569 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:36,585 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:36,795 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:36,926 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:41,070 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:52,256 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:14:58,920 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:08,754 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:08,958 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:09,314 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:09,528 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:09,595 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:09,627 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:09,645 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:09,823 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:09,987 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:17,426 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:17,908 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:15:21,310 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:15:21,311 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 14 treesize of output 8 [2024-11-27 20:15:44,123 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:02,336 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:03,403 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:03,634 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:03,955 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:04,204 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:04,281 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:04,317 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:04,338 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:04,562 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:04,753 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:05,321 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:06,779 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:07,445 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:07,677 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:07,750 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:07,820 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:08,132 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:10,591 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:11,615 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:11,875 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:12,234 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:12,505 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:12,590 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:12,627 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:12,652 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:12,866 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:13,045 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:13,592 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:30,188 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:30,874 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:31,109 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:31,180 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:31,249 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:31,558 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:32,549 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:33,651 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:33,909 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:34,258 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:34,515 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:34,593 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:34,631 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:34,653 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:34,871 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:35,055 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:16:35,604 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:17:08,993 WARN L286 SmtUtils]: Spent 10.33s on a formula simplification. DAG size of input: 23685 DAG size of output: 24746 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:17:42,807 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 8 treesize of output 4 [2024-11-27 20:17:42,894 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 8 treesize of output 4 [2024-11-27 20:17:43,016 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:17:43,016 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:17:43,022 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:17:43,139 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 8 treesize of output 4 [2024-11-27 20:17:43,323 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-27 20:17:43,323 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 142 treesize of output 133 [2024-11-27 20:17:43,844 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 8 treesize of output 4 [2024-11-27 20:17:43,886 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-27 20:17:43,887 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 88 treesize of output 83 [2024-11-27 20:17:43,978 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:17:43,979 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:17:43,985 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:17:44,155 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 8 treesize of output 4 [2024-11-27 20:17:44,210 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-27 20:17:44,211 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 88 treesize of output 83 [2024-11-27 20:17:44,322 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:17:44,322 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:17:44,329 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:17:44,366 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-27 20:17:44,367 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 142 treesize of output 133 [2024-11-27 20:17:44,767 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 8 treesize of output 4 [2024-11-27 20:17:44,810 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 8 treesize of output 4 [2024-11-27 20:17:44,847 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 8 treesize of output 4 [2024-11-27 20:17:48,513 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 96 treesize of output 88 [2024-11-27 20:17:49,617 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 38 [2024-11-27 20:17:50,937 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 96 treesize of output 88 [2024-11-27 20:17:54,209 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 96 treesize of output 88 [2024-11-27 20:18:06,209 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 8 treesize of output 4 [2024-11-27 20:18:18,336 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 8 treesize of output 4 [2024-11-27 20:21:01,642 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:21:01,642 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:21:01,651 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:21:26,336 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:21:26,337 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 20:21:26,345 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-27 20:22:47,733 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-27 20:22:47,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-27 20:22:47,734 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-27 20:22:47,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:22:47,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:47,935 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:584) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 61 more [2024-11-27 20:22:47,940 INFO L158 Benchmark]: Toolchain (without parser) took 752906.37ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 116.3MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 948.6MB. Max. memory is 16.1GB. [2024-11-27 20:22:47,940 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 74.4MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:22:47,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.72ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 98.5MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:22:47,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.29ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 96.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:22:47,942 INFO L158 Benchmark]: Boogie Preprocessor took 103.32ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:22:47,942 INFO L158 Benchmark]: RCFGBuilder took 728.34ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 78.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:22:47,943 INFO L158 Benchmark]: TraceAbstraction took 751473.62ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 78.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 906.7MB. Max. memory is 16.1GB. [2024-11-27 20:22:47,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 74.4MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 544.72ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 98.5MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.29ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 96.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 103.32ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 728.34ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 78.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 751473.62ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 78.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 906.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9d8386495cfc7d925686020c12a2509d702f4bf2aed1f5dea2d7da468cac3b6e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:22:50,571 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:22:50,678 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 20:22:50,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:22:50,685 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:22:50,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:22:50,720 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:22:50,720 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:22:50,721 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:22:50,721 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:22:50,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:22:50,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:22:50,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:22:50,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:22:50,722 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:22:50,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:22:50,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:22:50,722 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:22:50,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:22:50,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:22:50,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:22:50,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:22:50,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:22:50,723 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:22:50,723 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 20:22:50,724 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 20:22:50,724 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:22:50,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:22:50,724 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:22:50,724 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:22:50,724 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:22:50,724 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:22:50,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:22:50,725 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:22:50,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:22:50,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:22:50,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:22:50,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:22:50,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:22:50,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:22:50,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:22:50,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:22:50,727 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:22:50,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:22:50,727 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 20:22:50,727 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 20:22:50,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:22:50,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:22:50,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:22:50,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:22:50,727 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_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB 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 ! call(reach_error())) ) 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 -> 9d8386495cfc7d925686020c12a2509d702f4bf2aed1f5dea2d7da468cac3b6e [2024-11-27 20:22:51,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:22:51,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:22:51,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:22:51,126 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:22:51,127 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:22:51,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-2.i [2024-11-27 20:22:54,307 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/data/c80f28c4c/bf96e237b1d4420f866bd57d4ea8a17d/FLAGa9031f94b [2024-11-27 20:22:54,630 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:22:54,631 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/sv-benchmarks/c/forester-heap/dll-simple-white-blue-2.i [2024-11-27 20:22:54,648 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/data/c80f28c4c/bf96e237b1d4420f866bd57d4ea8a17d/FLAGa9031f94b [2024-11-27 20:22:54,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/data/c80f28c4c/bf96e237b1d4420f866bd57d4ea8a17d [2024-11-27 20:22:54,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:22:54,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:22:54,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:22:54,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:22:54,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:22:54,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:22:54" (1/1) ... [2024-11-27 20:22:54,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c09035e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:54, skipping insertion in model container [2024-11-27 20:22:54,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:22:54" (1/1) ... [2024-11-27 20:22:54,749 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:22:55,155 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/sv-benchmarks/c/forester-heap/dll-simple-white-blue-2.i[22778,22791] [2024-11-27 20:22:55,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:22:55,187 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:22:55,240 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/sv-benchmarks/c/forester-heap/dll-simple-white-blue-2.i[22778,22791] [2024-11-27 20:22:55,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:22:55,276 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:22:55,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55 WrapperNode [2024-11-27 20:22:55,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:22:55,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:22:55,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:22:55,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:22:55,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,341 INFO L138 Inliner]: procedures = 122, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 113 [2024-11-27 20:22:55,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:22:55,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:22:55,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:22:55,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:22:55,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,363 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,387 INFO L175 MemorySlicer]: Split 29 memory accesses to 2 slices as follows [2, 27]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 15 writes are split as follows [0, 15]. [2024-11-27 20:22:55,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,411 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,415 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,420 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,427 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:22:55,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:22:55,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:22:55,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:22:55,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:55,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:22:55,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:55,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:22:55,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:22:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-27 20:22:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-27 20:22:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:22:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:22:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:22:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:22:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:22:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:22:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:22:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-27 20:22:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-27 20:22:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 20:22:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 20:22:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:22:55,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:22:55,674 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:22:55,677 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:22:56,596 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-27 20:22:56,596 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:22:56,609 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:22:56,610 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-27 20:22:56,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:22:56 BoogieIcfgContainer [2024-11-27 20:22:56,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:22:56,612 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:22:56,613 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:22:56,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:22:56,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:22:54" (1/3) ... [2024-11-27 20:22:56,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c83a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:22:56, skipping insertion in model container [2024-11-27 20:22:56,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:55" (2/3) ... [2024-11-27 20:22:56,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c83a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:22:56, skipping insertion in model container [2024-11-27 20:22:56,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:22:56" (3/3) ... [2024-11-27 20:22:56,626 INFO L128 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue-2.i [2024-11-27 20:22:56,643 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:22:56,646 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dll-simple-white-blue-2.i that has 1 procedures, 33 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-11-27 20:22:56,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:22:56,708 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=LoopHeads, 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;@64c0be1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:22:56,709 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:22:56,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:56,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-27 20:22:56,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:56,719 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:56,719 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:56,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:56,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1502925872, now seen corresponding path program 1 times [2024-11-27 20:22:56,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:22:56,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1210621716] [2024-11-27 20:22:56,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:56,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:56,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:56,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:56,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:22:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:56,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:22:56,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:22:56,933 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:22:56,934 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:22:56,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210621716] [2024-11-27 20:22:56,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210621716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:56,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:56,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:22:56,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895955424] [2024-11-27 20:22:56,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:56,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:22:56,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:22:56,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:22:56,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:22:56,966 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:56,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:56,985 INFO L93 Difference]: Finished difference Result 60 states and 89 transitions. [2024-11-27 20:22:56,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:22:56,988 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-27 20:22:56,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:56,995 INFO L225 Difference]: With dead ends: 60 [2024-11-27 20:22:56,996 INFO L226 Difference]: Without dead ends: 25 [2024-11-27 20:22:56,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:22:57,003 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:57,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:22:57,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-27 20:22:57,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-27 20:22:57,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:57,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2024-11-27 20:22:57,042 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 12 [2024-11-27 20:22:57,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:57,043 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2024-11-27 20:22:57,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:57,044 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-11-27 20:22:57,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 20:22:57,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:57,046 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:57,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:22:57,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:57,250 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:22:57,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:57,251 INFO L85 PathProgramCache]: Analyzing trace with hash 311531199, now seen corresponding path program 1 times [2024-11-27 20:22:57,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:22:57,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226686] [2024-11-27 20:22:57,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:57,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:57,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:57,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:57,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:22:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:57,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 20:22:57,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:57,498 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 11 treesize of output 7 [2024-11-27 20:22:57,539 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 7 [2024-11-27 20:22:57,741 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 16 treesize of output 17 [2024-11-27 20:22:57,824 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-27 20:22:57,825 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 20 treesize of output 23 [2024-11-27 20:22:57,863 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 26 treesize of output 1 [2024-11-27 20:22:57,891 INFO L349 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2024-11-27 20:22:57,891 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 17 treesize of output 17 [2024-11-27 20:22:58,125 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 27 treesize of output 15 [2024-11-27 20:22:58,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:22:58,143 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 17 treesize of output 7 [2024-11-27 20:22:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:22:58,206 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:22:58,206 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:22:58,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226686] [2024-11-27 20:22:58,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:58,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:58,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:22:58,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931240629] [2024-11-27 20:22:58,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:58,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:22:58,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:22:58,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:22:58,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:22:58,210 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:00,124 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2024-11-27 20:23:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:23:00,126 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-27 20:23:00,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:00,128 INFO L225 Difference]: With dead ends: 55 [2024-11-27 20:23:00,128 INFO L226 Difference]: Without dead ends: 53 [2024-11-27 20:23:00,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:23:00,130 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 55 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:00,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 88 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 20:23:00,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-27 20:23:00,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 32. [2024-11-27 20:23:00,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:00,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-11-27 20:23:00,143 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 14 [2024-11-27 20:23:00,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:00,143 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-11-27 20:23:00,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-11-27 20:23:00,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-27 20:23:00,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:00,144 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:00,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:23:00,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:00,345 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:23:00,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:00,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1962180340, now seen corresponding path program 1 times [2024-11-27 20:23:00,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:23:00,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677918055] [2024-11-27 20:23:00,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:00,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:00,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:00,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:00,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:23:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:00,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:23:00,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:00,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2024-11-27 20:23:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:00,550 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:23:00,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:23:00,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677918055] [2024-11-27 20:23:00,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677918055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:00,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:00,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:23:00,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826644247] [2024-11-27 20:23:00,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:00,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:23:00,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:23:00,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:23:00,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:23:00,552 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:01,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:01,143 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2024-11-27 20:23:01,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:23:01,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-27 20:23:01,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:01,145 INFO L225 Difference]: With dead ends: 48 [2024-11-27 20:23:01,145 INFO L226 Difference]: Without dead ends: 38 [2024-11-27 20:23:01,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:23:01,146 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:01,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 88 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:23:01,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-27 20:23:01,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2024-11-27 20:23:01,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:01,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-27 20:23:01,161 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 17 [2024-11-27 20:23:01,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:01,162 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-27 20:23:01,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-11-27 20:23:01,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-27 20:23:01,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:01,164 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:01,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:23:01,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:01,365 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:23:01,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:01,366 INFO L85 PathProgramCache]: Analyzing trace with hash -750692923, now seen corresponding path program 1 times [2024-11-27 20:23:01,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:23:01,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1308934371] [2024-11-27 20:23:01,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:01,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:01,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:01,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:01,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:23:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:01,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 20:23:01,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:01,525 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 27 treesize of output 17 [2024-11-27 20:23:01,551 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 7 [2024-11-27 20:23:01,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 7 [2024-11-27 20:23:01,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 14 treesize of output 19 [2024-11-27 20:23:01,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 14 treesize of output 19 [2024-11-27 20:23:01,779 INFO L349 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2024-11-27 20:23:01,780 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 17 treesize of output 17 [2024-11-27 20:23:01,798 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 [2024-11-27 20:23:01,824 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 41 treesize of output 30 [2024-11-27 20:23:06,349 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1.base_38| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1.offset_38| (_ BitVec 32))) (let ((.cse3 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~x~0#1.base_38|))) (let ((.cse5 (select |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~x~0#1.base_38|)) (.cse0 (select .cse3 |v_ULTIMATE.start_main_~x~0#1.offset_38|))) (let ((.cse4 (bvadd (_ bv4 32) |v_ULTIMATE.start_main_~x~0#1.offset_38|)) (.cse2 (select |c_#memory_$Pointer$#1.base| .cse0)) (.cse1 (select .cse5 |v_ULTIMATE.start_main_~x~0#1.offset_38|))) (and (= (_ bv0 32) (select (select |c_#memory_$Pointer$#1.offset| .cse0) .cse1)) (= .cse0 |c_ULTIMATE.start_main_~x~0#1.base|) (not (= |v_ULTIMATE.start_main_~x~0#1.base_38| .cse0)) (= (select .cse2 .cse1) (_ bv0 32)) (= (_ bv0 32) (select .cse3 .cse4)) (= (_ bv0 32) (select .cse5 .cse4)) (= |c_ULTIMATE.start_main_~x~0#1.offset| .cse1) (= (_ bv0 32) (select .cse2 (bvadd (_ bv4 32) .cse1)))))))) is different from true [2024-11-27 20:23:07,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-27 20:23:07,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:23:08,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:08,885 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2024-11-27 20:23:08,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:08,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 29 treesize of output 36 [2024-11-27 20:23:09,155 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 15 treesize of output 9 [2024-11-27 20:23:09,207 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 15 treesize of output 9 [2024-11-27 20:23:11,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:11,276 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:23:11,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308934371] [2024-11-27 20:23:11,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308934371] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:23:11,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:23:11,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-27 20:23:11,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115856151] [2024-11-27 20:23:11,277 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:23:11,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:23:11,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:23:11,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:23:11,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=71, Unknown=1, NotChecked=16, Total=110 [2024-11-27 20:23:11,278 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:19,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:19,132 INFO L93 Difference]: Finished difference Result 73 states and 89 transitions. [2024-11-27 20:23:19,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:23:19,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-27 20:23:19,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:19,134 INFO L225 Difference]: With dead ends: 73 [2024-11-27 20:23:19,134 INFO L226 Difference]: Without dead ends: 58 [2024-11-27 20:23:19,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=48, Invalid=165, Unknown=1, NotChecked=26, Total=240 [2024-11-27 20:23:19,136 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 59 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:19,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 170 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 153 Invalid, 0 Unknown, 71 Unchecked, 6.0s Time] [2024-11-27 20:23:19,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-27 20:23:19,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 36. [2024-11-27 20:23:19,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:19,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2024-11-27 20:23:19,146 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 18 [2024-11-27 20:23:19,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:19,146 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2024-11-27 20:23:19,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:19,147 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2024-11-27 20:23:19,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 20:23:19,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:19,148 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:19,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:23:19,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:19,350 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:23:19,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:19,351 INFO L85 PathProgramCache]: Analyzing trace with hash -948355088, now seen corresponding path program 1 times [2024-11-27 20:23:19,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:23:19,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686240356] [2024-11-27 20:23:19,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:19,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:19,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:19,355 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:19,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:23:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:19,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:23:19,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:19,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:19,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:23:19,973 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:23:19,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686240356] [2024-11-27 20:23:19,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686240356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:19,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:19,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:23:19,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510456424] [2024-11-27 20:23:19,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:19,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:23:19,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:23:19,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:23:19,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:23:19,976 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:21,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:21,601 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2024-11-27 20:23:21,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:23:21,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-27 20:23:21,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:21,602 INFO L225 Difference]: With dead ends: 52 [2024-11-27 20:23:21,602 INFO L226 Difference]: Without dead ends: 40 [2024-11-27 20:23:21,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:23:21,603 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 6 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:21,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 72 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 20:23:21,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-27 20:23:21,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2024-11-27 20:23:21,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 37 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:21,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2024-11-27 20:23:21,612 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2024-11-27 20:23:21,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:21,612 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2024-11-27 20:23:21,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:21,613 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2024-11-27 20:23:21,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 20:23:21,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:21,614 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:21,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:23:21,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:21,818 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:23:21,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:21,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1341382098, now seen corresponding path program 1 times [2024-11-27 20:23:21,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:23:21,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [373345206] [2024-11-27 20:23:21,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:21,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:21,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:21,821 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:21,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:23:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:21,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:23:21,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:22,631 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 7 treesize of output 3 [2024-11-27 20:23:22,657 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 11 treesize of output 7 [2024-11-27 20:23:22,707 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 11 treesize of output 7 [2024-11-27 20:23:22,760 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 7 treesize of output 3 [2024-11-27 20:23:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:23,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:23:23,512 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:23:23,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373345206] [2024-11-27 20:23:23,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373345206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:23,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:23,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:23:23,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228957505] [2024-11-27 20:23:23,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:23,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:23:23,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:23:23,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:23:23,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:23:23,514 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:29,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:29,589 INFO L93 Difference]: Finished difference Result 96 states and 115 transitions. [2024-11-27 20:23:29,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:23:29,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-27 20:23:29,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:29,592 INFO L225 Difference]: With dead ends: 96 [2024-11-27 20:23:29,592 INFO L226 Difference]: Without dead ends: 74 [2024-11-27 20:23:29,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:23:29,593 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 44 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:29,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 140 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-27 20:23:29,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-27 20:23:29,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 48. [2024-11-27 20:23:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 47 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2024-11-27 20:23:29,604 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 19 [2024-11-27 20:23:29,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:29,605 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2024-11-27 20:23:29,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:29,605 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2024-11-27 20:23:29,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 20:23:29,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:29,606 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:29,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:23:29,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:29,806 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:23:29,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:29,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1916001527, now seen corresponding path program 1 times [2024-11-27 20:23:29,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:23:29,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1663713131] [2024-11-27 20:23:29,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:29,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:29,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:29,809 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:29,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74815f81-f0a9-4eaf-8de4-ea994bc2ac1d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:23:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:29,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-27 20:23:29,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:29,955 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 7 [2024-11-27 20:23:30,010 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 11 treesize of output 7 [2024-11-27 20:23:30,589 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 134 [2024-11-27 20:23:30,622 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 0 case distinctions, treesize of input 227 treesize of output 162 [2024-11-27 20:23:30,995 INFO L349 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2024-11-27 20:23:30,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 352 treesize of output 335 [2024-11-27 20:23:31,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:23:32,817 INFO L349 Elim1Store]: treesize reduction 471, result has 10.6 percent of original size [2024-11-27 20:23:32,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 307 treesize of output 428 [2024-11-27 20:23:32,858 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 220 [2024-11-27 20:23:32,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:23:32,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:23:33,072 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2024-11-27 20:23:33,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 157 treesize of output 171 [2024-11-27 20:23:33,120 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 258 [2024-11-27 20:23:33,582 INFO L349 Elim1Store]: treesize reduction 30, result has 34.8 percent of original size [2024-11-27 20:23:33,583 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 27 treesize of output 35 [2024-11-27 20:23:33,911 INFO L224 Elim1Store]: Index analysis took 187 ms [2024-11-27 20:23:34,129 INFO L349 Elim1Store]: treesize reduction 41, result has 22.6 percent of original size [2024-11-27 20:23:34,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 75 treesize of output 58 [2024-11-27 20:23:34,255 INFO L349 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2024-11-27 20:23:34,256 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 2 case distinctions, treesize of input 29 treesize of output 5 [2024-11-27 20:23:34,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 23 treesize of output 11 [2024-11-27 20:23:34,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 29 treesize of output 34 [2024-11-27 20:23:35,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 79 treesize of output 73 [2024-11-27 20:23:35,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 42 treesize of output 26 [2024-11-27 20:23:35,468 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-27 20:23:35,493 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-27 20:23:36,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 12 treesize of output 17 [2024-11-27 20:23:36,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 12 treesize of output 17 [2024-11-27 20:23:36,652 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-27 20:23:36,652 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 20 treesize of output 23 [2024-11-27 20:23:36,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:23:36,806 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 55 treesize of output 38 [2024-11-27 20:23:36,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:23:37,066 INFO L349 Elim1Store]: treesize reduction 29, result has 46.3 percent of original size [2024-11-27 20:23:37,066 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 1 case distinctions, treesize of input 35 treesize of output 45 [2024-11-27 20:23:37,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:23:37,314 INFO L349 Elim1Store]: treesize reduction 6, result has 66.7 percent of original size [2024-11-27 20:23:37,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 26 [2024-11-27 20:23:41,602 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-27 20:23:41,602 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 32 [2024-11-27 20:23:41,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:23:41,647 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 [2024-11-27 20:23:42,439 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:42,439 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:23:46,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:46,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 39 treesize of output 46 [2024-11-27 20:23:46,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:46,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 33 treesize of output 40 [2024-11-27 20:23:46,542 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_321 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_20 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_19 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_~head~0#1.base_16| (_ BitVec 32))) (let ((.cse0 (store |c_#memory_int#1| |v_ULTIMATE.start_main_~head~0#1.base_16| v_ArrVal_321))) (or (not (= |c_ULTIMATE.start_main_~head~0#1.base| (select v_arrayElimArr_19 (_ bv0 32)))) (not (= (select v_arrayElimArr_20 (_ bv0 32)) |c_ULTIMATE.start_main_~head~0#1.offset|)) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_~head~0#1.base_16|))) (= (_ bv1 32) (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) (bvadd |c_ULTIMATE.start_main_~head~0#1.offset| (_ bv8 32)))) (not (= (_ bv1 32) (select v_ArrVal_321 (_ bv8 32)))) (not (= (_ bv1 32) (select (select .cse0 (select (select (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~head~0#1.base_16| v_arrayElimArr_19) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~head~0#1.base_16| v_arrayElimArr_20) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))))))) is different from false [2024-11-27 20:23:47,453 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:47,454 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 288 treesize of output 240 [2024-11-27 20:23:48,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:48,845 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 5629 treesize of output 4700 [2024-11-27 20:23:52,135 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:52,135 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 1392 treesize of output 1330 [2024-11-27 20:23:52,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:52,368 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 1388 treesize of output 1076 [2024-11-27 20:23:55,428 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:55,429 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 140624 treesize of output 131239 [2024-11-27 20:23:55,913 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:55,914 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 740 treesize of output 710 [2024-11-27 20:23:56,041 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 650 treesize of output 644 [2024-11-27 20:23:56,218 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 644 treesize of output 638 [2024-11-27 20:23:56,568 INFO L224 Elim1Store]: Index analysis took 224 ms [2024-11-27 20:23:56,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:56,878 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 645 treesize of output 639 [2024-11-27 20:23:57,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:57,300 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 633 treesize of output 627 [2024-11-27 20:24:01,873 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:24:01,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 140 treesize of output 128 [2024-11-27 20:24:03,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:24:03,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 60 treesize of output 60