./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC --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 1733340110531036ec2730e9cf68ec8d1d2e7f12e2ee065e03b827b6d5da2aba --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:22:07,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:22:07,239 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:22:07,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:22:07,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:22:07,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:22:07,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:22:07,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:22:07,281 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:22:07,282 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:22:07,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:22:07,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:22:07,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:22:07,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:22:07,283 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:22:07,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:22:07,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:22:07,284 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:22:07,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:22:07,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:22:07,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:22:07,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:22:07,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:22:07,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:22:07,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:22:07,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:22:07,285 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:22:07,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:22:07,285 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:22:07,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:22:07,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:22:07,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:22:07,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:22:07,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:22:07,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:22:07,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:22:07,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:22:07,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:22:07,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:22:07,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:22:07,288 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:22:07,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:22:07,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:22:07,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:22:07,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:22:07,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:22:07,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:22:07,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:22:07,289 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_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 1733340110531036ec2730e9cf68ec8d1d2e7f12e2ee065e03b827b6d5da2aba [2024-11-23 23:22:07,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:22:07,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:22:07,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:22:07,645 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:22:07,646 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:22:07,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i [2024-11-23 23:22:11,453 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/data/f33834fdd/d1fc31b28bcf4ba4b9aae5a30377894d/FLAGb0ae7e0ec [2024-11-23 23:22:11,958 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:22:11,959 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i [2024-11-23 23:22:11,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/data/f33834fdd/d1fc31b28bcf4ba4b9aae5a30377894d/FLAGb0ae7e0ec [2024-11-23 23:22:12,036 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/data/f33834fdd/d1fc31b28bcf4ba4b9aae5a30377894d [2024-11-23 23:22:12,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:22:12,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:22:12,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:22:12,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:22:12,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:22:12,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284ec254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12, skipping insertion in model container [2024-11-23 23:22:12,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:22:12,282 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_32db50e3-720e-49a8-ae0e-5cf4b3504825/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i[917,930] [2024-11-23 23:22:12,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:22:12,393 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:22:12,409 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_32db50e3-720e-49a8-ae0e-5cf4b3504825/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i[917,930] [2024-11-23 23:22:12,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:22:12,483 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:22:12,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12 WrapperNode [2024-11-23 23:22:12,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:22:12,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:22:12,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:22:12,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:22:12,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,549 INFO L138 Inliner]: procedures = 27, calls = 145, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 420 [2024-11-23 23:22:12,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:22:12,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:22:12,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:22:12,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:22:12,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,566 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,589 INFO L175 MemorySlicer]: Split 120 memory accesses to 2 slices as follows [2, 118]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 31 writes are split as follows [0, 31]. [2024-11-23 23:22:12,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,604 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,612 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:22:12,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:22:12,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:22:12,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:22:12,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (1/1) ... [2024-11-23 23:22:12,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:22:12,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:22:12,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:22:12,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:22:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:22:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 23:22:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 23:22:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:22:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:22:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:22:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:22:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:22:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:22:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:22:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:22:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:22:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:22:12,870 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:22:12,872 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:22:13,525 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-23 23:22:13,525 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:22:13,546 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:22:13,548 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:22:13,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:13 BoogieIcfgContainer [2024-11-23 23:22:13,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:22:13,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:22:13,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:22:13,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:22:13,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:22:12" (1/3) ... [2024-11-23 23:22:13,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcdab25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:13, skipping insertion in model container [2024-11-23 23:22:13,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:12" (2/3) ... [2024-11-23 23:22:13,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcdab25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:13, skipping insertion in model container [2024-11-23 23:22:13,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:13" (3/3) ... [2024-11-23 23:22:13,562 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-87.i [2024-11-23 23:22:13,582 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:22:13,584 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-87.i that has 2 procedures, 87 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:22:13,662 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:22:13,682 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;@7f193308, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:22:13,683 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:22:13,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 71 states have internal predecessors, (96), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 23:22:13,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:22:13,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:13,710 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:13,712 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:13,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:13,720 INFO L85 PathProgramCache]: Analyzing trace with hash -160032552, now seen corresponding path program 1 times [2024-11-23 23:22:13,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:13,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141503985] [2024-11-23 23:22:13,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:13,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-23 23:22:14,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:14,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141503985] [2024-11-23 23:22:14,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141503985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:22:14,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408853712] [2024-11-23 23:22:14,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:14,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:22:14,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:22:14,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:22:14,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:22:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:14,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:22:14,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:22:14,463 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-23 23:22:14,464 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:22:14,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408853712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:14,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:22:14,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:22:14,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722968267] [2024-11-23 23:22:14,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:14,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:22:14,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:14,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:22:14,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:22:14,495 INFO L87 Difference]: Start difference. First operand has 87 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 71 states have internal predecessors, (96), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:22:14,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:14,523 INFO L93 Difference]: Finished difference Result 167 states and 256 transitions. [2024-11-23 23:22:14,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:22:14,525 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2024-11-23 23:22:14,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:14,532 INFO L225 Difference]: With dead ends: 167 [2024-11-23 23:22:14,532 INFO L226 Difference]: Without dead ends: 83 [2024-11-23 23:22:14,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:22:14,539 INFO L435 NwaCegarLoop]: 115 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, 115 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 [2024-11-23 23:22:14,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:22:14,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-23 23:22:14,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-23 23:22:14,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 67 states have internal predecessors, (87), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 23:22:14,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2024-11-23 23:22:14,593 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 111 [2024-11-23 23:22:14,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:14,594 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2024-11-23 23:22:14,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:22:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2024-11-23 23:22:14,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:22:14,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:14,599 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:14,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:22:14,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:22:14,800 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:14,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:14,801 INFO L85 PathProgramCache]: Analyzing trace with hash -173670212, now seen corresponding path program 1 times [2024-11-23 23:22:14,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:14,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369543442] [2024-11-23 23:22:14,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:14,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 23:22:15,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:15,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369543442] [2024-11-23 23:22:15,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369543442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:22:15,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593125863] [2024-11-23 23:22:15,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:15,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:22:15,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:22:15,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:22:15,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:22:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:15,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:22:15,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:22:15,786 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:15,786 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:22:15,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593125863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:15,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:22:15,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-23 23:22:15,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115237364] [2024-11-23 23:22:15,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:15,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:22:15,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:15,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:22:15,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:22:15,789 INFO L87 Difference]: Start difference. First operand 83 states and 115 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:15,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:15,858 INFO L93 Difference]: Finished difference Result 166 states and 231 transitions. [2024-11-23 23:22:15,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:22:15,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-23 23:22:15,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:15,861 INFO L225 Difference]: With dead ends: 166 [2024-11-23 23:22:15,861 INFO L226 Difference]: Without dead ends: 86 [2024-11-23 23:22:15,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:22:15,865 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:15,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 325 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:22:15,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-23 23:22:15,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2024-11-23 23:22:15,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 69 states have (on average 1.289855072463768) internal successors, (89), 69 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 23:22:15,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 117 transitions. [2024-11-23 23:22:15,887 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 117 transitions. Word has length 111 [2024-11-23 23:22:15,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:15,890 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 117 transitions. [2024-11-23 23:22:15,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:15,890 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2024-11-23 23:22:15,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:22:15,894 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:15,897 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:15,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:22:16,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:22:16,098 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:16,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:16,099 INFO L85 PathProgramCache]: Analyzing trace with hash 506388158, now seen corresponding path program 1 times [2024-11-23 23:22:16,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:16,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97905148] [2024-11-23 23:22:16,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:16,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:16,558 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 23:22:16,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:16,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97905148] [2024-11-23 23:22:16,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97905148] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:22:16,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061212046] [2024-11-23 23:22:16,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:16,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:22:16,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:22:16,564 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:22:16,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:22:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:16,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:22:16,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:22:16,843 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:16,844 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:22:16,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061212046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:16,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:22:16,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-23 23:22:16,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764131965] [2024-11-23 23:22:16,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:16,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:22:16,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:16,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:22:16,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:22:16,847 INFO L87 Difference]: Start difference. First operand 85 states and 117 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:16,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:16,902 INFO L93 Difference]: Finished difference Result 170 states and 235 transitions. [2024-11-23 23:22:16,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:22:16,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-23 23:22:16,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:16,905 INFO L225 Difference]: With dead ends: 170 [2024-11-23 23:22:16,905 INFO L226 Difference]: Without dead ends: 88 [2024-11-23 23:22:16,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:22:16,910 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:16,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 326 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:22:16,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-23 23:22:16,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2024-11-23 23:22:16,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 71 states have internal predecessors, (91), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 23:22:16,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2024-11-23 23:22:16,927 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 111 [2024-11-23 23:22:16,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:16,928 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2024-11-23 23:22:16,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:16,928 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2024-11-23 23:22:16,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:22:16,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:16,934 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:16,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:22:17,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:22:17,135 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:17,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:17,135 INFO L85 PathProgramCache]: Analyzing trace with hash -2013571776, now seen corresponding path program 1 times [2024-11-23 23:22:17,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:17,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240417822] [2024-11-23 23:22:17,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:17,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 23:22:17,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:17,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240417822] [2024-11-23 23:22:17,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240417822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:22:17,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200806518] [2024-11-23 23:22:17,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:17,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:22:17,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:22:17,503 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:22:17,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:22:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:17,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:22:17,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:22:17,771 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:17,772 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:22:17,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200806518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:17,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:22:17,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-23 23:22:17,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193744951] [2024-11-23 23:22:17,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:17,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:22:17,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:17,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:22:17,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:22:17,774 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:17,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:17,812 INFO L93 Difference]: Finished difference Result 174 states and 239 transitions. [2024-11-23 23:22:17,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:22:17,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-23 23:22:17,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:17,815 INFO L225 Difference]: With dead ends: 174 [2024-11-23 23:22:17,815 INFO L226 Difference]: Without dead ends: 90 [2024-11-23 23:22:17,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:22:17,816 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:17,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 328 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:22:17,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-23 23:22:17,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2024-11-23 23:22:17,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 73 states have (on average 1.273972602739726) internal successors, (93), 73 states have internal predecessors, (93), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 23:22:17,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 121 transitions. [2024-11-23 23:22:17,836 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 121 transitions. Word has length 111 [2024-11-23 23:22:17,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:17,836 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 121 transitions. [2024-11-23 23:22:17,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:17,838 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2024-11-23 23:22:17,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:22:17,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:17,840 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:17,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:22:18,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:22:18,041 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:18,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:18,042 INFO L85 PathProgramCache]: Analyzing trace with hash -2011724734, now seen corresponding path program 1 times [2024-11-23 23:22:18,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:18,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208609055] [2024-11-23 23:22:18,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:18,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:18,337 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 23:22:18,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:18,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208609055] [2024-11-23 23:22:18,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208609055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:22:18,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733032817] [2024-11-23 23:22:18,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:18,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:22:18,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:22:18,343 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:22:18,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:22:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:18,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:22:18,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:22:18,579 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:18,579 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:22:18,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733032817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:18,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:22:18,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-23 23:22:18,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136573340] [2024-11-23 23:22:18,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:18,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:22:18,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:18,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:22:18,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:22:18,582 INFO L87 Difference]: Start difference. First operand 89 states and 121 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:18,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:18,607 INFO L93 Difference]: Finished difference Result 177 states and 242 transitions. [2024-11-23 23:22:18,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:22:18,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-23 23:22:18,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:18,609 INFO L225 Difference]: With dead ends: 177 [2024-11-23 23:22:18,609 INFO L226 Difference]: Without dead ends: 91 [2024-11-23 23:22:18,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:22:18,611 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:18,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:22:18,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-23 23:22:18,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-23 23:22:18,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.2666666666666666) internal successors, (95), 75 states have internal predecessors, (95), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 23:22:18,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 123 transitions. [2024-11-23 23:22:18,618 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 123 transitions. Word has length 111 [2024-11-23 23:22:18,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:18,619 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 123 transitions. [2024-11-23 23:22:18,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:18,619 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 123 transitions. [2024-11-23 23:22:18,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 23:22:18,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:18,620 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:18,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 23:22:18,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:22:18,821 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:18,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:18,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1933177509, now seen corresponding path program 1 times [2024-11-23 23:22:18,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:18,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879709913] [2024-11-23 23:22:18,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:18,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:20,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:20,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879709913] [2024-11-23 23:22:20,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879709913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:20,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:20,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:22:20,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652050258] [2024-11-23 23:22:20,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:20,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:22:20,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:20,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:22:20,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:22:20,042 INFO L87 Difference]: Start difference. First operand 91 states and 123 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:20,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:20,872 INFO L93 Difference]: Finished difference Result 227 states and 308 transitions. [2024-11-23 23:22:20,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:22:20,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-11-23 23:22:20,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:20,876 INFO L225 Difference]: With dead ends: 227 [2024-11-23 23:22:20,876 INFO L226 Difference]: Without dead ends: 139 [2024-11-23 23:22:20,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:22:20,878 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 130 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:20,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 258 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:22:20,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-23 23:22:20,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 103. [2024-11-23 23:22:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 87 states have internal predecessors, (113), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 23:22:20,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 141 transitions. [2024-11-23 23:22:20,899 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 141 transitions. Word has length 113 [2024-11-23 23:22:20,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:20,899 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 141 transitions. [2024-11-23 23:22:20,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:20,900 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 141 transitions. [2024-11-23 23:22:20,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 23:22:20,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:20,902 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:20,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:22:20,902 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:20,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:20,903 INFO L85 PathProgramCache]: Analyzing trace with hash -633094042, now seen corresponding path program 1 times [2024-11-23 23:22:20,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:20,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510030880] [2024-11-23 23:22:20,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:20,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:22,260 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:22,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:22,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510030880] [2024-11-23 23:22:22,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510030880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:22,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:22,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:22:22,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890486414] [2024-11-23 23:22:22,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:22,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:22:22,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:22,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:22:22,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:22:22,265 INFO L87 Difference]: Start difference. First operand 103 states and 141 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:22:23,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:23,067 INFO L93 Difference]: Finished difference Result 256 states and 349 transitions. [2024-11-23 23:22:23,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:22:23,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2024-11-23 23:22:23,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:23,070 INFO L225 Difference]: With dead ends: 256 [2024-11-23 23:22:23,070 INFO L226 Difference]: Without dead ends: 156 [2024-11-23 23:22:23,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:22:23,071 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 269 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:23,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 350 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:22:23,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-23 23:22:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 123. [2024-11-23 23:22:23,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 107 states have (on average 1.308411214953271) internal successors, (140), 107 states have internal predecessors, (140), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 23:22:23,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 168 transitions. [2024-11-23 23:22:23,094 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 168 transitions. Word has length 113 [2024-11-23 23:22:23,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:23,094 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 168 transitions. [2024-11-23 23:22:23,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:22:23,095 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 168 transitions. [2024-11-23 23:22:23,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-23 23:22:23,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:23,097 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:23,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:22:23,097 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:23,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:23,098 INFO L85 PathProgramCache]: Analyzing trace with hash -776494331, now seen corresponding path program 1 times [2024-11-23 23:22:23,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:23,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206477358] [2024-11-23 23:22:23,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:23,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:26,767 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:26,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:26,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206477358] [2024-11-23 23:22:26,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206477358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:26,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:26,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 23:22:26,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78125182] [2024-11-23 23:22:26,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:26,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:22:26,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:26,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:22:26,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:22:26,771 INFO L87 Difference]: Start difference. First operand 123 states and 168 transitions. Second operand has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-23 23:22:29,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:29,249 INFO L93 Difference]: Finished difference Result 336 states and 449 transitions. [2024-11-23 23:22:29,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:22:29,250 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 114 [2024-11-23 23:22:29,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:29,253 INFO L225 Difference]: With dead ends: 336 [2024-11-23 23:22:29,253 INFO L226 Difference]: Without dead ends: 216 [2024-11-23 23:22:29,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:22:29,255 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 234 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:29,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 481 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 23:22:29,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-23 23:22:29,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 161. [2024-11-23 23:22:29,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 142 states have (on average 1.295774647887324) internal successors, (184), 143 states have internal predecessors, (184), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 216 transitions. [2024-11-23 23:22:29,299 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 216 transitions. Word has length 114 [2024-11-23 23:22:29,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:29,300 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 216 transitions. [2024-11-23 23:22:29,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-23 23:22:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 216 transitions. [2024-11-23 23:22:29,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:22:29,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:29,303 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:29,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:22:29,303 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:29,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:29,304 INFO L85 PathProgramCache]: Analyzing trace with hash 200671924, now seen corresponding path program 1 times [2024-11-23 23:22:29,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:29,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338676942] [2024-11-23 23:22:29,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:29,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:37,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:37,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338676942] [2024-11-23 23:22:37,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338676942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:37,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:37,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-23 23:22:37,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394815177] [2024-11-23 23:22:37,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:37,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 23:22:37,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:37,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:22:37,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:22:37,657 INFO L87 Difference]: Start difference. First operand 161 states and 216 transitions. Second operand has 17 states, 15 states have (on average 3.2) internal successors, (48), 17 states have internal predecessors, (48), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-23 23:22:41,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:41,368 INFO L93 Difference]: Finished difference Result 392 states and 522 transitions. [2024-11-23 23:22:41,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:22:41,369 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.2) internal successors, (48), 17 states have internal predecessors, (48), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) Word has length 115 [2024-11-23 23:22:41,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:41,375 INFO L225 Difference]: With dead ends: 392 [2024-11-23 23:22:41,376 INFO L226 Difference]: Without dead ends: 234 [2024-11-23 23:22:41,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2024-11-23 23:22:41,380 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 253 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:41,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 539 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 23:22:41,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-23 23:22:41,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 157. [2024-11-23 23:22:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.289855072463768) internal successors, (178), 139 states have internal predecessors, (178), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 210 transitions. [2024-11-23 23:22:41,430 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 210 transitions. Word has length 115 [2024-11-23 23:22:41,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:41,431 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 210 transitions. [2024-11-23 23:22:41,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.2) internal successors, (48), 17 states have internal predecessors, (48), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-23 23:22:41,432 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 210 transitions. [2024-11-23 23:22:41,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:22:41,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:41,434 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:41,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:22:41,435 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:41,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:41,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1223887013, now seen corresponding path program 1 times [2024-11-23 23:22:41,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:41,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670633734] [2024-11-23 23:22:41,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:41,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:42,314 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:42,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:42,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670633734] [2024-11-23 23:22:42,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670633734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:42,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:42,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:22:42,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010850483] [2024-11-23 23:22:42,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:42,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:22:42,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:42,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:22:42,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:22:42,317 INFO L87 Difference]: Start difference. First operand 157 states and 210 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:42,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:42,821 INFO L93 Difference]: Finished difference Result 302 states and 403 transitions. [2024-11-23 23:22:42,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:22:42,822 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-11-23 23:22:42,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:42,824 INFO L225 Difference]: With dead ends: 302 [2024-11-23 23:22:42,824 INFO L226 Difference]: Without dead ends: 148 [2024-11-23 23:22:42,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:22:42,826 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 183 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:42,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 220 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:22:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-23 23:22:42,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2024-11-23 23:22:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 127 states have (on average 1.2755905511811023) internal successors, (162), 128 states have internal predecessors, (162), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2024-11-23 23:22:42,862 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 115 [2024-11-23 23:22:42,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:42,862 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2024-11-23 23:22:42,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:42,863 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2024-11-23 23:22:42,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:22:42,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:42,865 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:42,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:22:42,865 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:42,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:42,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1644013042, now seen corresponding path program 1 times [2024-11-23 23:22:42,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:42,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493470512] [2024-11-23 23:22:42,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:42,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:45,264 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:45,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:45,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493470512] [2024-11-23 23:22:45,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493470512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:45,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:45,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:22:45,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760217420] [2024-11-23 23:22:45,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:45,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:22:45,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:45,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:22:45,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:22:45,266 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-23 23:22:46,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:46,312 INFO L93 Difference]: Finished difference Result 216 states and 280 transitions. [2024-11-23 23:22:46,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:22:46,314 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2024-11-23 23:22:46,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:46,317 INFO L225 Difference]: With dead ends: 216 [2024-11-23 23:22:46,317 INFO L226 Difference]: Without dead ends: 214 [2024-11-23 23:22:46,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:22:46,318 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 324 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:46,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 295 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:22:46,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-23 23:22:46,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 190. [2024-11-23 23:22:46,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 171 states have (on average 1.286549707602339) internal successors, (220), 172 states have internal predecessors, (220), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:46,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 252 transitions. [2024-11-23 23:22:46,364 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 252 transitions. Word has length 115 [2024-11-23 23:22:46,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:46,365 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 252 transitions. [2024-11-23 23:22:46,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-23 23:22:46,365 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 252 transitions. [2024-11-23 23:22:46,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:22:46,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:46,367 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:46,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:22:46,368 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:46,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:46,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1645860084, now seen corresponding path program 1 times [2024-11-23 23:22:46,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:46,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665596174] [2024-11-23 23:22:46,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:46,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:48,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:48,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665596174] [2024-11-23 23:22:48,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665596174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:48,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:48,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:22:48,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183374537] [2024-11-23 23:22:48,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:48,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:22:48,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:48,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:22:48,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:22:48,132 INFO L87 Difference]: Start difference. First operand 190 states and 252 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:49,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:49,291 INFO L93 Difference]: Finished difference Result 403 states and 528 transitions. [2024-11-23 23:22:49,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:22:49,292 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-11-23 23:22:49,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:49,295 INFO L225 Difference]: With dead ends: 403 [2024-11-23 23:22:49,295 INFO L226 Difference]: Without dead ends: 216 [2024-11-23 23:22:49,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:22:49,297 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 219 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:49,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 331 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:22:49,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-23 23:22:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 190. [2024-11-23 23:22:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 171 states have (on average 1.2748538011695907) internal successors, (218), 172 states have internal predecessors, (218), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:49,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 250 transitions. [2024-11-23 23:22:49,364 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 250 transitions. Word has length 115 [2024-11-23 23:22:49,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:49,365 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 250 transitions. [2024-11-23 23:22:49,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:22:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 250 transitions. [2024-11-23 23:22:49,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:22:49,368 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:49,368 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:49,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:22:49,368 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:49,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:49,369 INFO L85 PathProgramCache]: Analyzing trace with hash -874099850, now seen corresponding path program 1 times [2024-11-23 23:22:49,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:49,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640413138] [2024-11-23 23:22:49,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:49,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:50,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:50,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640413138] [2024-11-23 23:22:50,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640413138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:50,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:50,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:22:50,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666283012] [2024-11-23 23:22:50,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:50,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:22:50,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:50,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:22:51,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:22:51,000 INFO L87 Difference]: Start difference. First operand 190 states and 250 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:22:51,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:51,883 INFO L93 Difference]: Finished difference Result 401 states and 522 transitions. [2024-11-23 23:22:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:22:51,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-23 23:22:51,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:51,896 INFO L225 Difference]: With dead ends: 401 [2024-11-23 23:22:51,901 INFO L226 Difference]: Without dead ends: 214 [2024-11-23 23:22:51,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:22:51,903 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 249 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:51,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 216 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:22:51,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-23 23:22:51,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 190. [2024-11-23 23:22:51,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 171 states have (on average 1.263157894736842) internal successors, (216), 172 states have internal predecessors, (216), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:51,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 248 transitions. [2024-11-23 23:22:51,955 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 248 transitions. Word has length 115 [2024-11-23 23:22:51,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:51,955 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 248 transitions. [2024-11-23 23:22:51,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:22:51,956 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 248 transitions. [2024-11-23 23:22:51,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:22:51,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:51,958 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:51,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:22:51,959 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:51,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:51,960 INFO L85 PathProgramCache]: Analyzing trace with hash -194041480, now seen corresponding path program 1 times [2024-11-23 23:22:51,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:51,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207154229] [2024-11-23 23:22:51,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:51,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:52,462 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:22:52,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:52,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207154229] [2024-11-23 23:22:52,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207154229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:52,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:52,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:22:52,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656657240] [2024-11-23 23:22:52,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:52,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:22:52,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:52,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:22:52,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:22:52,465 INFO L87 Difference]: Start difference. First operand 190 states and 248 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:22:53,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:53,048 INFO L93 Difference]: Finished difference Result 507 states and 654 transitions. [2024-11-23 23:22:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:22:53,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-23 23:22:53,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:53,051 INFO L225 Difference]: With dead ends: 507 [2024-11-23 23:22:53,052 INFO L226 Difference]: Without dead ends: 320 [2024-11-23 23:22:53,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:22:53,058 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 261 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:53,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 316 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:22:53,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-23 23:22:53,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 254. [2024-11-23 23:22:53,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 235 states have (on average 1.251063829787234) internal successors, (294), 236 states have internal predecessors, (294), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:53,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 326 transitions. [2024-11-23 23:22:53,129 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 326 transitions. Word has length 115 [2024-11-23 23:22:53,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:53,133 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 326 transitions. [2024-11-23 23:22:53,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:22:53,133 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 326 transitions. [2024-11-23 23:22:53,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-23 23:22:53,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:53,136 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:53,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:22:53,137 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:53,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:53,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1310951966, now seen corresponding path program 1 times [2024-11-23 23:22:53,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:53,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641862272] [2024-11-23 23:22:53,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:53,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:54,189 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 23:22:54,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:54,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641862272] [2024-11-23 23:22:54,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641862272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:22:54,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589005209] [2024-11-23 23:22:54,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:54,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:22:54,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:22:54,193 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:22:54,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:22:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:54,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-23 23:22:54,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:22:57,405 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 15 treesize of output 1 [2024-11-23 23:22:58,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 35 [2024-11-23 23:22:58,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:22:58,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:22:58,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:22:58,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:22:58,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:22:58,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:22:58,194 INFO L349 Elim1Store]: treesize reduction 72, result has 26.5 percent of original size [2024-11-23 23:22:58,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 45 [2024-11-23 23:22:58,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:22:58,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:22:58,248 INFO L349 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2024-11-23 23:22:58,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 53 [2024-11-23 23:22:58,307 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 1 proven. 99 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:22:58,307 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:22:58,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589005209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:22:58,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:22:58,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2024-11-23 23:22:58,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980790241] [2024-11-23 23:22:58,493 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:22:58,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 23:22:58,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:58,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 23:22:58,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:22:58,495 INFO L87 Difference]: Start difference. First operand 254 states and 326 transitions. Second operand has 16 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 6 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-23 23:23:00,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:00,600 INFO L93 Difference]: Finished difference Result 420 states and 539 transitions. [2024-11-23 23:23:00,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:23:00,601 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 6 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) Word has length 116 [2024-11-23 23:23:00,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:00,603 INFO L225 Difference]: With dead ends: 420 [2024-11-23 23:23:00,603 INFO L226 Difference]: Without dead ends: 169 [2024-11-23 23:23:00,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2024-11-23 23:23:00,605 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 77 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:00,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 359 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:23:00,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-23 23:23:00,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2024-11-23 23:23:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 147 states have (on average 1.2312925170068028) internal successors, (181), 148 states have internal predecessors, (181), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:23:00,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 213 transitions. [2024-11-23 23:23:00,667 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 213 transitions. Word has length 116 [2024-11-23 23:23:00,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:00,667 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 213 transitions. [2024-11-23 23:23:00,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 6 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-23 23:23:00,668 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 213 transitions. [2024-11-23 23:23:00,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-23 23:23:00,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:00,670 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:00,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 23:23:00,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-23 23:23:00,870 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:00,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:00,871 INFO L85 PathProgramCache]: Analyzing trace with hash -721049333, now seen corresponding path program 1 times [2024-11-23 23:23:00,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:23:00,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131689737] [2024-11-23 23:23:00,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:00,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:23:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:01,695 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:23:01,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:23:01,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131689737] [2024-11-23 23:23:01,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131689737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:23:01,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:23:01,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:23:01,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151024116] [2024-11-23 23:23:01,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:23:01,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:23:01,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:23:01,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:23:01,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:23:01,697 INFO L87 Difference]: Start difference. First operand 167 states and 213 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:23:02,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:02,317 INFO L93 Difference]: Finished difference Result 331 states and 423 transitions. [2024-11-23 23:23:02,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:23:02,318 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-11-23 23:23:02,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:02,320 INFO L225 Difference]: With dead ends: 331 [2024-11-23 23:23:02,321 INFO L226 Difference]: Without dead ends: 167 [2024-11-23 23:23:02,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:23:02,322 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 131 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:02,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 172 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:23:02,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-23 23:23:02,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-23 23:23:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 147 states have (on average 1.2040816326530612) internal successors, (177), 148 states have internal predecessors, (177), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:23:02,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 209 transitions. [2024-11-23 23:23:02,387 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 209 transitions. Word has length 117 [2024-11-23 23:23:02,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:02,387 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 209 transitions. [2024-11-23 23:23:02,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:23:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 209 transitions. [2024-11-23 23:23:02,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:23:02,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:02,389 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:02,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:23:02,389 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:02,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:02,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1129079964, now seen corresponding path program 1 times [2024-11-23 23:23:02,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:23:02,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069767322] [2024-11-23 23:23:02,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:02,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:23:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:06,447 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:23:06,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:23:06,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069767322] [2024-11-23 23:23:06,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069767322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:23:06,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:23:06,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 23:23:06,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679616479] [2024-11-23 23:23:06,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:23:06,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:23:06,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:23:06,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:23:06,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:23:06,450 INFO L87 Difference]: Start difference. First operand 167 states and 209 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-23 23:23:07,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:07,911 INFO L93 Difference]: Finished difference Result 177 states and 220 transitions. [2024-11-23 23:23:07,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:23:07,912 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 119 [2024-11-23 23:23:07,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:07,914 INFO L225 Difference]: With dead ends: 177 [2024-11-23 23:23:07,914 INFO L226 Difference]: Without dead ends: 175 [2024-11-23 23:23:07,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:23:07,915 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 287 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:07,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 235 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:23:07,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-23 23:23:07,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2024-11-23 23:23:07,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 153 states have (on average 1.196078431372549) internal successors, (183), 154 states have internal predecessors, (183), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:23:07,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 215 transitions. [2024-11-23 23:23:07,982 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 215 transitions. Word has length 119 [2024-11-23 23:23:07,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:07,983 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 215 transitions. [2024-11-23 23:23:07,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-23 23:23:07,983 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 215 transitions. [2024-11-23 23:23:07,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:23:07,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:07,984 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:07,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:23:07,985 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:07,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:07,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1127232922, now seen corresponding path program 1 times [2024-11-23 23:23:07,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:23:07,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257575241] [2024-11-23 23:23:07,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:07,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:23:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:10,246 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:23:10,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:23:10,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257575241] [2024-11-23 23:23:10,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257575241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:23:10,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:23:10,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 23:23:10,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252078483] [2024-11-23 23:23:10,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:23:10,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:23:10,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:23:10,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:23:10,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:23:10,249 INFO L87 Difference]: Start difference. First operand 173 states and 215 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:23:11,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:11,055 INFO L93 Difference]: Finished difference Result 345 states and 429 transitions. [2024-11-23 23:23:11,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:23:11,055 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-11-23 23:23:11,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:11,057 INFO L225 Difference]: With dead ends: 345 [2024-11-23 23:23:11,057 INFO L226 Difference]: Without dead ends: 175 [2024-11-23 23:23:11,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:23:11,058 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 186 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:11,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 203 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:23:11,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-23 23:23:11,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2024-11-23 23:23:11,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 153 states have (on average 1.1830065359477124) internal successors, (181), 154 states have internal predecessors, (181), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:23:11,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 213 transitions. [2024-11-23 23:23:11,138 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 213 transitions. Word has length 119 [2024-11-23 23:23:11,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:11,139 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 213 transitions. [2024-11-23 23:23:11,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:23:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 213 transitions. [2024-11-23 23:23:11,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 23:23:11,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:11,140 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:11,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:23:11,141 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:11,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:11,142 INFO L85 PathProgramCache]: Analyzing trace with hash 647774440, now seen corresponding path program 1 times [2024-11-23 23:23:11,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:23:11,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478191080] [2024-11-23 23:23:11,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:11,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:23:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:13,257 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:23:13,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:23:13,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478191080] [2024-11-23 23:23:13,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478191080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:23:13,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:23:13,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:23:13,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741012628] [2024-11-23 23:23:13,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:23:13,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:23:13,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:23:13,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:23:13,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:23:13,259 INFO L87 Difference]: Start difference. First operand 173 states and 213 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:23:13,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:13,972 INFO L93 Difference]: Finished difference Result 343 states and 423 transitions. [2024-11-23 23:23:13,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:23:13,973 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-11-23 23:23:13,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:13,975 INFO L225 Difference]: With dead ends: 343 [2024-11-23 23:23:13,975 INFO L226 Difference]: Without dead ends: 173 [2024-11-23 23:23:13,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:23:13,976 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 259 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:13,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 162 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:23:13,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-23 23:23:14,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-23 23:23:14,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 153 states have (on average 1.1699346405228759) internal successors, (179), 154 states have internal predecessors, (179), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:23:14,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2024-11-23 23:23:14,057 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 119 [2024-11-23 23:23:14,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:14,058 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2024-11-23 23:23:14,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:23:14,058 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2024-11-23 23:23:14,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 23:23:14,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:14,060 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:14,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 23:23:14,060 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:14,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:14,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1919891586, now seen corresponding path program 1 times [2024-11-23 23:23:14,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:23:14,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824553687] [2024-11-23 23:23:14,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:14,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:23:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:23:14,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [532983309] [2024-11-23 23:23:14,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:14,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:14,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:23:14,211 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:23:14,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:23:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:14,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-23 23:23:14,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:23:14,697 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 46 treesize of output 45 [2024-11-23 23:23:15,076 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 61 treesize of output 53 [2024-11-23 23:23:18,834 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 15 treesize of output 1 [2024-11-23 23:23:18,931 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 15 treesize of output 1 [2024-11-23 23:23:19,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:23:19,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:23:19,226 INFO L349 Elim1Store]: treesize reduction 72, result has 35.1 percent of original size [2024-11-23 23:23:19,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 73 [2024-11-23 23:23:19,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:23:19,570 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 34 treesize of output 18 [2024-11-23 23:23:19,611 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:23:19,611 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:23:19,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:23:19,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824553687] [2024-11-23 23:23:19,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:23:19,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532983309] [2024-11-23 23:23:19,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532983309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:23:19,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:23:19,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:23:19,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922800985] [2024-11-23 23:23:19,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:23:19,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:23:19,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:23:19,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:23:19,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:23:19,615 INFO L87 Difference]: Start difference. First operand 173 states and 211 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:23:20,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:20,868 INFO L93 Difference]: Finished difference Result 580 states and 704 transitions. [2024-11-23 23:23:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:23:20,868 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-23 23:23:20,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:20,872 INFO L225 Difference]: With dead ends: 580 [2024-11-23 23:23:20,872 INFO L226 Difference]: Without dead ends: 410 [2024-11-23 23:23:20,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:23:20,873 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 191 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:20,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 365 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:23:20,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-23 23:23:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 256. [2024-11-23 23:23:20,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 220 states have (on average 1.1727272727272726) internal successors, (258), 221 states have internal predecessors, (258), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 23:23:20,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 318 transitions. [2024-11-23 23:23:20,967 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 318 transitions. Word has length 120 [2024-11-23 23:23:20,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:20,968 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 318 transitions. [2024-11-23 23:23:20,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:23:20,969 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 318 transitions. [2024-11-23 23:23:20,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 23:23:20,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:20,970 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:20,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-23 23:23:21,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:21,171 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:21,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:21,171 INFO L85 PathProgramCache]: Analyzing trace with hash 293814618, now seen corresponding path program 1 times [2024-11-23 23:23:21,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:23:21,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707634577] [2024-11-23 23:23:21,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:21,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:23:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:23:21,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:23:21,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707634577] [2024-11-23 23:23:21,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707634577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:23:21,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:23:21,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:23:21,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343697819] [2024-11-23 23:23:21,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:23:21,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:23:21,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:23:21,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:23:21,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:23:21,735 INFO L87 Difference]: Start difference. First operand 256 states and 318 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:23:22,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:22,450 INFO L93 Difference]: Finished difference Result 524 states and 647 transitions. [2024-11-23 23:23:22,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:23:22,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-23 23:23:22,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:22,454 INFO L225 Difference]: With dead ends: 524 [2024-11-23 23:23:22,454 INFO L226 Difference]: Without dead ends: 354 [2024-11-23 23:23:22,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:23:22,456 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 129 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:22,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 563 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:23:22,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-23 23:23:22,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 298. [2024-11-23 23:23:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 262 states have (on average 1.1717557251908397) internal successors, (307), 263 states have internal predecessors, (307), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 23:23:22,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 367 transitions. [2024-11-23 23:23:22,597 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 367 transitions. Word has length 120 [2024-11-23 23:23:22,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:22,598 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 367 transitions. [2024-11-23 23:23:22,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:23:22,598 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 367 transitions. [2024-11-23 23:23:22,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 23:23:22,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:22,599 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:22,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 23:23:22,599 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:22,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:22,600 INFO L85 PathProgramCache]: Analyzing trace with hash 710658479, now seen corresponding path program 1 times [2024-11-23 23:23:22,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:23:22,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090282381] [2024-11-23 23:23:22,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:22,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:23:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:23:22,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1845343522] [2024-11-23 23:23:22,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:22,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:22,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:23:22,900 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:23:22,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 23:23:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:23,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-11-23 23:23:23,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:23:23,415 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 46 treesize of output 45 [2024-11-23 23:23:23,970 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 61 treesize of output 53 [2024-11-23 23:23:25,183 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 15 treesize of output 1 [2024-11-23 23:23:26,166 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 15 treesize of output 1 [2024-11-23 23:23:27,194 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 15 treesize of output 1 [2024-11-23 23:23:28,204 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 15 treesize of output 1 [2024-11-23 23:23:29,253 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 15 treesize of output 1 [2024-11-23 23:23:30,296 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 15 treesize of output 1 [2024-11-23 23:23:31,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:23:31,587 INFO L349 Elim1Store]: treesize reduction 329, result has 25.1 percent of original size [2024-11-23 23:23:31,587 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 76 treesize of output 178 [2024-11-23 23:23:32,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:32,153 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 42 treesize of output 52 [2024-11-23 23:23:32,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:23:32,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:23:32,300 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-23 23:23:32,302 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2024-11-23 23:23:32,377 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-23 23:23:32,517 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-23 23:23:33,611 INFO L349 Elim1Store]: treesize reduction 96, result has 41.8 percent of original size [2024-11-23 23:23:33,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 122 treesize of output 170 [2024-11-23 23:23:38,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-23 23:23:38,111 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 9 treesize of output 7 [2024-11-23 23:23:38,124 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 19 treesize of output 15 [2024-11-23 23:23:38,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:23:38,566 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-23 23:23:38,566 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 [2024-11-23 23:23:38,662 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 9 treesize of output 7 [2024-11-23 23:23:38,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:23:38,853 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 19 treesize of output 15 [2024-11-23 23:23:39,108 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 9 treesize of output 7 [2024-11-23 23:23:39,510 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 9 treesize of output 7 [2024-11-23 23:23:39,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 206 [2024-11-23 23:23:39,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:23:39,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:23:39,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 206 treesize of output 248 [2024-11-23 23:24:03,352 INFO L349 Elim1Store]: treesize reduction 672, result has 23.4 percent of original size [2024-11-23 23:24:03,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 90 case distinctions, treesize of input 463 treesize of output 593 [2024-11-23 23:24:17,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:17,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:17,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-23 23:24:17,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:17,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:17,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:24:17,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 81 [2024-11-23 23:24:17,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:17,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:17,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-23 23:24:18,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,093 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-23 23:24:18,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 28 [2024-11-23 23:24:18,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,124 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2024-11-23 23:24:18,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 29 [2024-11-23 23:24:18,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-23 23:24:18,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:24:18,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 101 [2024-11-23 23:24:18,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,614 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-23 23:24:18,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 28 [2024-11-23 23:24:18,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,672 INFO L349 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2024-11-23 23:24:18,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 39 [2024-11-23 23:24:18,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-23 23:24:18,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-23 23:24:18,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:18,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:24:18,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 85 [2024-11-23 23:24:19,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:19,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:19,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-23 23:24:19,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:19,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:19,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-23 23:24:19,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:19,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:19,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-23 23:24:19,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:19,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:19,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-23 23:24:20,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:20,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:20,142 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-23 23:24:20,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 28 [2024-11-23 23:24:20,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:20,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:20,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-23 23:24:20,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:20,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:20,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:20,680 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2024-11-23 23:24:20,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 32 [2024-11-23 23:24:20,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:20,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:20,836 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-23 23:24:20,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 28 [2024-11-23 23:24:21,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2024-11-23 23:24:21,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:21,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:24:21,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-11-23 23:24:21,336 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 15 treesize of output 1 [2024-11-23 23:24:21,454 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-23 23:24:21,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2024-11-23 23:24:21,846 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 20 [2024-11-23 23:24:21,879 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:24:21,880 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:24:57,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:24:57,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090282381] [2024-11-23 23:24:57,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:24:57,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845343522] [2024-11-23 23:24:57,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845343522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:24:57,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:24:57,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-23 23:24:57,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202696756] [2024-11-23 23:24:57,810 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:24:57,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:24:57,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:24:57,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:24:57,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=224, Unknown=7, NotChecked=0, Total=306 [2024-11-23 23:24:57,811 INFO L87 Difference]: Start difference. First operand 298 states and 367 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:24:59,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:24:59,483 INFO L93 Difference]: Finished difference Result 616 states and 739 transitions. [2024-11-23 23:24:59,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:24:59,484 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-11-23 23:24:59,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:24:59,487 INFO L225 Difference]: With dead ends: 616 [2024-11-23 23:24:59,487 INFO L226 Difference]: Without dead ends: 419 [2024-11-23 23:24:59,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 35.7s TimeCoverageRelationStatistics Valid=135, Invalid=320, Unknown=7, NotChecked=0, Total=462 [2024-11-23 23:24:59,490 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 226 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:24:59,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 357 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:24:59,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-23 23:24:59,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 338. [2024-11-23 23:24:59,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 302 states have (on average 1.1655629139072847) internal successors, (352), 303 states have internal predecessors, (352), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 23:24:59,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 412 transitions. [2024-11-23 23:24:59,619 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 412 transitions. Word has length 121 [2024-11-23 23:24:59,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:24:59,620 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 412 transitions. [2024-11-23 23:24:59,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:24:59,620 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 412 transitions. [2024-11-23 23:24:59,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 23:24:59,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:24:59,622 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:24:59,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 23:24:59,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-23 23:24:59,823 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:24:59,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:24:59,823 INFO L85 PathProgramCache]: Analyzing trace with hash 2088738115, now seen corresponding path program 1 times [2024-11-23 23:24:59,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:24:59,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108453906] [2024-11-23 23:24:59,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:24:59,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:03,841 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:25:03,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:03,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108453906] [2024-11-23 23:25:03,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108453906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:03,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:03,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-23 23:25:03,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845263574] [2024-11-23 23:25:03,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:03,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 23:25:03,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:03,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:25:03,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:25:03,843 INFO L87 Difference]: Start difference. First operand 338 states and 412 transitions. Second operand has 17 states, 16 states have (on average 3.4375) internal successors, (55), 17 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-23 23:25:06,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:25:06,252 INFO L93 Difference]: Finished difference Result 631 states and 759 transitions. [2024-11-23 23:25:06,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:25:06,253 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.4375) internal successors, (55), 17 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2024-11-23 23:25:06,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:25:06,256 INFO L225 Difference]: With dead ends: 631 [2024-11-23 23:25:06,256 INFO L226 Difference]: Without dead ends: 434 [2024-11-23 23:25:06,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:25:06,258 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 318 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:25:06,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 500 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 23:25:06,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-23 23:25:06,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 382. [2024-11-23 23:25:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 346 states have (on average 1.1647398843930636) internal successors, (403), 347 states have internal predecessors, (403), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 23:25:06,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 463 transitions. [2024-11-23 23:25:06,391 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 463 transitions. Word has length 122 [2024-11-23 23:25:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:25:06,392 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 463 transitions. [2024-11-23 23:25:06,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.4375) internal successors, (55), 17 states have internal predecessors, (55), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-23 23:25:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 463 transitions. [2024-11-23 23:25:06,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 23:25:06,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:25:06,397 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:25:06,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 23:25:06,397 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:25:06,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:25:06,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1501932101, now seen corresponding path program 1 times [2024-11-23 23:25:06,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:25:06,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952284838] [2024-11-23 23:25:06,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:06,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:25:06,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186907519] [2024-11-23 23:25:06,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:25:06,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:25:06,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:25:06,551 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:25:06,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 23:25:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:07,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-23 23:25:07,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:25:12,739 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 15 treesize of output 1 [2024-11-23 23:25:13,694 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 15 treesize of output 1 [2024-11-23 23:25:14,710 INFO L349 Elim1Store]: treesize reduction 79, result has 18.6 percent of original size [2024-11-23 23:25:14,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 110 [2024-11-23 23:25:14,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:14,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:14,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:14,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:14,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:14,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:14,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:14,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:14,946 INFO L349 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2024-11-23 23:25:14,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 120 [2024-11-23 23:25:15,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:15,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:15,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:15,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:15,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:15,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:15,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:15,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:15,371 INFO L349 Elim1Store]: treesize reduction 204, result has 24.2 percent of original size [2024-11-23 23:25:15,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 135 [2024-11-23 23:25:15,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 61 [2024-11-23 23:25:15,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:15,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:15,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:15,915 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2024-11-23 23:25:15,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 36 [2024-11-23 23:25:16,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:16,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:16,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2024-11-23 23:25:16,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:16,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:16,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2024-11-23 23:25:16,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:16,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:16,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:16,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 45 [2024-11-23 23:25:19,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:19,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:19,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:25:19,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 33 [2024-11-23 23:25:19,288 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:25:19,288 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:26:10,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:26:10,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952284838] [2024-11-23 23:26:10,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:26:10,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186907519] [2024-11-23 23:26:10,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186907519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:26:10,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:26:10,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-23 23:26:10,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864950718] [2024-11-23 23:26:10,829 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:26:10,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:26:10,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:26:10,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:26:10,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=202, Unknown=7, NotChecked=0, Total=272 [2024-11-23 23:26:10,830 INFO L87 Difference]: Start difference. First operand 382 states and 463 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:26:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:26:18,973 INFO L93 Difference]: Finished difference Result 637 states and 764 transitions. [2024-11-23 23:26:18,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:26:18,974 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2024-11-23 23:26:18,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:26:18,976 INFO L225 Difference]: With dead ends: 637 [2024-11-23 23:26:18,976 INFO L226 Difference]: Without dead ends: 436 [2024-11-23 23:26:18,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 52.0s TimeCoverageRelationStatistics Valid=121, Invalid=292, Unknown=7, NotChecked=0, Total=420 [2024-11-23 23:26:18,978 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 296 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:26:18,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 273 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-23 23:26:18,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-23 23:26:19,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 386. [2024-11-23 23:26:19,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 349 states have (on average 1.157593123209169) internal successors, (404), 350 states have internal predecessors, (404), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 23:26:19,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 464 transitions. [2024-11-23 23:26:19,095 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 464 transitions. Word has length 122 [2024-11-23 23:26:19,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:26:19,095 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 464 transitions. [2024-11-23 23:26:19,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:26:19,095 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 464 transitions. [2024-11-23 23:26:19,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 23:26:19,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:26:19,096 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:26:19,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-23 23:26:19,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:26:19,297 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:26:19,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:26:19,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2065680571, now seen corresponding path program 1 times [2024-11-23 23:26:19,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:26:19,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864119414] [2024-11-23 23:26:19,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:19,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:26:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:26:19,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1267009387] [2024-11-23 23:26:19,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:26:19,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:26:19,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:26:19,442 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:26:19,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 23:26:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:26:19,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-23 23:26:19,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:26:25,599 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 15 treesize of output 1 [2024-11-23 23:26:26,666 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 15 treesize of output 1 [2024-11-23 23:26:27,725 INFO L349 Elim1Store]: treesize reduction 79, result has 18.6 percent of original size [2024-11-23 23:26:27,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 110 [2024-11-23 23:26:27,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 28 [2024-11-23 23:26:27,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:27,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:27,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:27,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:27,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:27,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:27,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:27,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:28,188 INFO L349 Elim1Store]: treesize reduction 273, result has 22.7 percent of original size [2024-11-23 23:26:28,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 102 treesize of output 233 [2024-11-23 23:26:29,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:29,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:29,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:29,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:29,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:29,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:29,784 INFO L349 Elim1Store]: treesize reduction 253, result has 12.5 percent of original size [2024-11-23 23:26:29,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 163 treesize of output 176 [2024-11-23 23:26:30,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:30,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:30,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:30,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:30,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:30,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:30,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:30,872 INFO L349 Elim1Store]: treesize reduction 308, result has 16.3 percent of original size [2024-11-23 23:26:30,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 395 treesize of output 420 [2024-11-23 23:26:48,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:48,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:48,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2024-11-23 23:26:48,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:48,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:48,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2024-11-23 23:26:48,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:48,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:48,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:26:48,671 INFO L349 Elim1Store]: treesize reduction 61, result has 10.3 percent of original size [2024-11-23 23:26:48,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 52 [2024-11-23 23:26:49,298 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:26:49,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:27:08,378 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_7_Pointer~0.offset Int) (v_ArrVal_1412 Int) (|ULTIMATE.start_step_#t~ite14#1| Int) (~WrapperStruct00_var_1_7_Pointer~0.base Int)) (let ((.cse1 (let ((.cse2 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int#1| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset |ULTIMATE.start_step_#t~ite14#1|)))) (store .cse2 c_~WrapperStruct00_var_1_5_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset v_ArrVal_1412))))) (or (let ((.cse0 (store .cse1 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset (select (select .cse1 ~WrapperStruct00_var_1_7_Pointer~0.base) ~WrapperStruct00_var_1_7_Pointer~0.offset))))) (< (mod (* (select (select .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset) (select (select .cse0 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset)) 4294967296) (mod (+ 4294967295 (select (select .cse0 c_~WrapperStruct00_var_1_9_Pointer~0.base) c_~WrapperStruct00_var_1_9_Pointer~0.offset)) 4294967296))) (< (mod (+ 4294967295 (select (select .cse1 c_~WrapperStruct00_var_1_9_Pointer~0.base) c_~WrapperStruct00_var_1_9_Pointer~0.offset)) 4294967296) (+ (mod (* (select (select .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset) (select (select .cse1 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset)) 4294967296) 1))))) is different from false [2024-11-23 23:27:12,988 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_7_Pointer~0.offset Int) (~WrapperStruct00_var_1_14_Pointer~0.base Int) (v_ArrVal_1412 Int) (~WrapperStruct00_var_1_14_Pointer~0.offset Int) (|ULTIMATE.start_step_#t~ite14#1| Int) (~WrapperStruct00_var_1_7_Pointer~0.base Int)) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_12_Pointer~0.base (store (select |c_#memory_int#1| c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset (select (select |c_#memory_int#1| c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset))))) (store .cse5 c_~WrapperStruct00_var_1_13_Pointer~0.base (store (select .cse5 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset (select (select .cse5 ~WrapperStruct00_var_1_14_Pointer~0.base) ~WrapperStruct00_var_1_14_Pointer~0.offset)))))) (store .cse4 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse4 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset (select (select .cse4 c_~WrapperStruct00_var_1_9_Pointer~0.base) c_~WrapperStruct00_var_1_9_Pointer~0.offset)))))) (store .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset |ULTIMATE.start_step_#t~ite14#1|))))) (store .cse2 c_~WrapperStruct00_var_1_5_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset v_ArrVal_1412))))) (or (< (mod (+ (select (select .cse0 c_~WrapperStruct00_var_1_9_Pointer~0.base) c_~WrapperStruct00_var_1_9_Pointer~0.offset) 4294967295) 4294967296) (+ (mod (* (select (select .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset) (select (select .cse0 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset)) 4294967296) 1)) (let ((.cse1 (store .cse0 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset (select (select .cse0 ~WrapperStruct00_var_1_7_Pointer~0.base) ~WrapperStruct00_var_1_7_Pointer~0.offset))))) (< (mod (* (select (select .cse1 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset) (select (select .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset)) 4294967296) (mod (+ 4294967295 (select (select .cse1 c_~WrapperStruct00_var_1_9_Pointer~0.base) c_~WrapperStruct00_var_1_9_Pointer~0.offset)) 4294967296)))))) is different from false [2024-11-23 23:27:17,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:17,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864119414] [2024-11-23 23:27:17,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:27:17,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267009387] [2024-11-23 23:27:17,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267009387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:27:17,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:27:17,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-23 23:27:17,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576234916] [2024-11-23 23:27:17,289 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:27:17,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:27:17,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:17,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:27:17,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=163, Unknown=4, NotChecked=54, Total=272 [2024-11-23 23:27:17,290 INFO L87 Difference]: Start difference. First operand 386 states and 464 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:27:19,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:19,736 INFO L93 Difference]: Finished difference Result 685 states and 816 transitions. [2024-11-23 23:27:19,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:27:19,737 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2024-11-23 23:27:19,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:19,740 INFO L225 Difference]: With dead ends: 685 [2024-11-23 23:27:19,740 INFO L226 Difference]: Without dead ends: 480 [2024-11-23 23:27:19,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=101, Invalid=245, Unknown=4, NotChecked=70, Total=420 [2024-11-23 23:27:19,745 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 308 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:19,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 212 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 23:27:19,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-23 23:27:19,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 428. [2024-11-23 23:27:19,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 391 states have (on average 1.1585677749360614) internal successors, (453), 392 states have internal predecessors, (453), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 23:27:19,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 513 transitions. [2024-11-23 23:27:19,854 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 513 transitions. Word has length 122 [2024-11-23 23:27:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:19,854 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 513 transitions. [2024-11-23 23:27:19,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-23 23:27:19,854 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 513 transitions. [2024-11-23 23:27:19,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 23:27:19,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:19,856 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:27:19,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 23:27:20,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:27:20,057 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:20,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:20,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1642480711, now seen corresponding path program 1 times [2024-11-23 23:27:20,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:20,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47729926] [2024-11-23 23:27:20,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:20,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:20,490 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:27:20,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:20,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47729926] [2024-11-23 23:27:20,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47729926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:20,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:20,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:27:20,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413839330] [2024-11-23 23:27:20,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:20,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:27:20,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:20,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:27:20,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:27:20,493 INFO L87 Difference]: Start difference. First operand 428 states and 513 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:27:21,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:21,147 INFO L93 Difference]: Finished difference Result 733 states and 871 transitions. [2024-11-23 23:27:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:27:21,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-11-23 23:27:21,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:21,150 INFO L225 Difference]: With dead ends: 733 [2024-11-23 23:27:21,150 INFO L226 Difference]: Without dead ends: 486 [2024-11-23 23:27:21,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:27:21,152 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 145 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:21,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 432 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:27:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-23 23:27:21,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 428. [2024-11-23 23:27:21,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 391 states have (on average 1.1585677749360614) internal successors, (453), 392 states have internal predecessors, (453), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 23:27:21,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 513 transitions. [2024-11-23 23:27:21,312 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 513 transitions. Word has length 122 [2024-11-23 23:27:21,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:21,312 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 513 transitions. [2024-11-23 23:27:21,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:27:21,313 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 513 transitions. [2024-11-23 23:27:21,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 23:27:21,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:21,314 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:27:21,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 23:27:21,314 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:21,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:21,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1581153586, now seen corresponding path program 1 times [2024-11-23 23:27:21,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:21,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123649625] [2024-11-23 23:27:21,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:21,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:28,556 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:27:28,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:28,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123649625] [2024-11-23 23:27:28,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123649625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:28,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:28,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-23 23:27:28,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137110477] [2024-11-23 23:27:28,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:28,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 23:27:28,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:28,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 23:27:28,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:27:28,558 INFO L87 Difference]: Start difference. First operand 428 states and 513 transitions. Second operand has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-23 23:27:33,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:33,529 INFO L93 Difference]: Finished difference Result 776 states and 935 transitions. [2024-11-23 23:27:33,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:27:33,530 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 124 [2024-11-23 23:27:33,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:33,532 INFO L225 Difference]: With dead ends: 776 [2024-11-23 23:27:33,532 INFO L226 Difference]: Without dead ends: 514 [2024-11-23 23:27:33,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2024-11-23 23:27:33,534 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 257 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:33,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 503 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-23 23:27:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-23 23:27:33,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 428. [2024-11-23 23:27:33,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 391 states have (on average 1.143222506393862) internal successors, (447), 392 states have internal predecessors, (447), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 23:27:33,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 507 transitions. [2024-11-23 23:27:33,688 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 507 transitions. Word has length 124 [2024-11-23 23:27:33,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:33,689 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 507 transitions. [2024-11-23 23:27:33,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-23 23:27:33,689 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 507 transitions. [2024-11-23 23:27:33,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 23:27:33,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:33,691 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:27:33,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 23:27:33,691 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:33,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:33,691 INFO L85 PathProgramCache]: Analyzing trace with hash 387415666, now seen corresponding path program 1 times [2024-11-23 23:27:33,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:33,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404284766] [2024-11-23 23:27:33,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:33,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:35,924 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-23 23:27:35,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:35,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404284766] [2024-11-23 23:27:35,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404284766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:27:35,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:27:35,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:27:35,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677439983] [2024-11-23 23:27:35,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:27:35,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:27:35,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:27:35,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:27:35,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:27:35,927 INFO L87 Difference]: Start difference. First operand 428 states and 507 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:27:37,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:27:37,836 INFO L93 Difference]: Finished difference Result 738 states and 876 transitions. [2024-11-23 23:27:37,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:27:37,836 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 124 [2024-11-23 23:27:37,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:27:37,838 INFO L225 Difference]: With dead ends: 738 [2024-11-23 23:27:37,838 INFO L226 Difference]: Without dead ends: 464 [2024-11-23 23:27:37,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:27:37,840 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 139 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:27:37,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 355 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 23:27:37,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-23 23:27:37,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 428. [2024-11-23 23:27:37,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 391 states have (on average 1.1278772378516624) internal successors, (441), 392 states have internal predecessors, (441), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-23 23:27:37,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 501 transitions. [2024-11-23 23:27:37,986 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 501 transitions. Word has length 124 [2024-11-23 23:27:37,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:27:37,987 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 501 transitions. [2024-11-23 23:27:37,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-23 23:27:37,987 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 501 transitions. [2024-11-23 23:27:37,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-23 23:27:37,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:27:37,988 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:27:37,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 23:27:37,988 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:27:37,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:27:37,988 INFO L85 PathProgramCache]: Analyzing trace with hash -643756470, now seen corresponding path program 1 times [2024-11-23 23:27:37,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:27:37,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089038800] [2024-11-23 23:27:37,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:37,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:27:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:40,840 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 23:27:40,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:27:40,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089038800] [2024-11-23 23:27:40,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089038800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:27:40,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160322814] [2024-11-23 23:27:40,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:27:40,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:27:40,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:27:40,845 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:27:40,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 23:27:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:27:41,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-23 23:27:41,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:27:42,768 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 15 treesize of output 1 [2024-11-23 23:27:44,278 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 25 treesize of output 13 [2024-11-23 23:27:45,469 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 25 treesize of output 13 [2024-11-23 23:27:46,598 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 25 treesize of output 13 [2024-11-23 23:27:47,731 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 25 treesize of output 13 [2024-11-23 23:27:48,917 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 25 treesize of output 13 [2024-11-23 23:27:50,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:50,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:50,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:50,733 INFO L349 Elim1Store]: treesize reduction 449, result has 23.8 percent of original size [2024-11-23 23:27:50,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 86 treesize of output 213 [2024-11-23 23:27:54,639 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-23 23:27:54,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2024-11-23 23:27:54,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:54,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:54,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:27:54,819 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 35 treesize of output 37 [2024-11-23 23:27:54,966 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-23 23:27:54,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 94 [2024-11-23 23:27:55,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,209 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2024-11-23 23:27:55,209 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 2 case distinctions, treesize of input 28 treesize of output 22 [2024-11-23 23:27:55,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,286 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 19 treesize of output 15 [2024-11-23 23:27:55,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,314 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 19 treesize of output 15 [2024-11-23 23:27:55,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,388 INFO L349 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2024-11-23 23:27:55,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 37 [2024-11-23 23:27:55,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,532 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:27:55,532 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 30 [2024-11-23 23:27:55,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:27:55,624 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 30 [2024-11-23 23:27:55,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,706 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-23 23:27:55,707 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 [2024-11-23 23:27:55,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,783 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 19 treesize of output 15 [2024-11-23 23:27:55,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:55,808 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 19 treesize of output 15 [2024-11-23 23:27:55,894 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-23 23:27:55,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 104 treesize of output 103 [2024-11-23 23:27:56,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,146 INFO L349 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2024-11-23 23:27:56,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 39 [2024-11-23 23:27:56,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,248 INFO L349 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2024-11-23 23:27:56,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 39 [2024-11-23 23:27:56,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,347 INFO L349 Elim1Store]: treesize reduction 29, result has 29.3 percent of original size [2024-11-23 23:27:56,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 53 treesize of output 54 [2024-11-23 23:27:56,471 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-23 23:27:56,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-11-23 23:27:56,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:56,585 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 19 treesize of output 15 [2024-11-23 23:27:56,988 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-23 23:27:56,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 78 [2024-11-23 23:27:57,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:57,023 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 19 treesize of output 15 [2024-11-23 23:27:57,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:57,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 23:27:57,156 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 61 treesize of output 71 [2024-11-23 23:27:57,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 32 [2024-11-23 23:27:57,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:57,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:57,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2024-11-23 23:27:57,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 44 [2024-11-23 23:27:57,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:57,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:57,638 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-23 23:27:57,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:57,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2024-11-23 23:27:59,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:59,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:59,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:27:59,780 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2024-11-23 23:27:59,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 37 [2024-11-23 23:28:03,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:28:03,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:28:03,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:28:03,453 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2024-11-23 23:28:03,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 57 [2024-11-23 23:28:05,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:28:05,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:28:05,639 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-23 23:28:05,639 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 35 treesize of output 27 [2024-11-23 23:28:09,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:28:09,411 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 25 treesize of output 13 [2024-11-23 23:28:09,730 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-23 23:28:09,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 101 treesize of output 96 [2024-11-23 23:28:10,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:28:10,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 166 [2024-11-23 23:28:10,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:28:10,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 65 [2024-11-23 23:28:11,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:28:11,080 INFO L349 Elim1Store]: treesize reduction 48, result has 39.2 percent of original size [2024-11-23 23:28:11,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 75 treesize of output 73 [2024-11-23 23:28:11,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-23 23:28:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 113 proven. 120 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-23 23:28:11,307 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:28:12,590 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int#1| c_~WrapperStruct00_var_1_5_Pointer~0.base))) (and (forall ((v_ArrVal_1631 Int) (v_ArrVal_1629 (Array Int Int))) (let ((.cse1 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset))) (or (< (mod (select (select (let ((.cse0 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse0 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289) (< (+ 128 .cse1) 0) (< 0 (+ .cse1 1)) (not (= v_ArrVal_1629 (store .cse2 c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse1)))))) (forall ((v_ArrVal_1631 Int) (v_ArrVal_1629 (Array Int Int))) (let ((.cse4 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset))) (or (< (mod (select (select (let ((.cse3 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse3 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse3 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289) (< 127 .cse4) (not (= v_ArrVal_1629 (store .cse2 c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse4))) (forall ((~WrapperStruct00_var_1_9_Pointer~0.offset Int) (~WrapperStruct00_var_1_9_Pointer~0.base Int)) (< (mod (* 255 (select (select |c_#memory_int#1| ~WrapperStruct00_var_1_9_Pointer~0.base) ~WrapperStruct00_var_1_9_Pointer~0.offset)) 256) (+ 2 .cse4))) (< .cse4 0)))) (forall ((v_ArrVal_1631 Int) (v_ArrVal_1629 (Array Int Int))) (let ((.cse6 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset))) (or (< (mod (select (select (let ((.cse5 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse5 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse5 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289) (< (+ 128 .cse6) 0) (< 0 (+ 2 .cse6)) (not (= v_ArrVal_1629 (store .cse2 c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse6)))))) (forall ((v_ArrVal_1631 Int) (v_ArrVal_1629 (Array Int Int))) (let ((.cse8 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset))) (or (< (mod (select (select (let ((.cse7 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse7 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse7 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289) (< 127 .cse8) (not (= v_ArrVal_1629 (store .cse2 c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse8))) (< .cse8 0)))))) is different from false [2024-11-23 23:28:13,508 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int#1| c_~WrapperStruct00_var_1_1_Pointer~0.base))) (and (forall ((v_ArrVal_1631 Int) (v_ArrVal_1629 (Array Int Int)) (|ULTIMATE.start_step_#t~ite14#1| Int)) (let ((.cse2 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_1_Pointer~0.base (store .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.offset |ULTIMATE.start_step_#t~ite14#1|))) (.cse0 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset))) (or (< 127 .cse0) (< (mod (select (select (let ((.cse1 (store .cse2 c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse1 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289) (not (= (store (select .cse2 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse0) v_ArrVal_1629)) (< .cse0 0)))) (forall ((v_ArrVal_1631 Int) (v_ArrVal_1629 (Array Int Int)) (|ULTIMATE.start_step_#t~ite14#1| Int)) (let ((.cse6 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_1_Pointer~0.base (store .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.offset |ULTIMATE.start_step_#t~ite14#1|))) (.cse4 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset))) (or (< 127 .cse4) (< (mod (select (select (let ((.cse5 (store .cse6 c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse5 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse5 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289) (not (= (store (select .cse6 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse4) v_ArrVal_1629)) (< .cse4 0) (forall ((~WrapperStruct00_var_1_9_Pointer~0.offset Int) (~WrapperStruct00_var_1_9_Pointer~0.base Int)) (< (mod (* (select (select .cse6 ~WrapperStruct00_var_1_9_Pointer~0.base) ~WrapperStruct00_var_1_9_Pointer~0.offset) 255) 256) (+ 2 .cse4)))))) (forall ((v_ArrVal_1631 Int) (v_ArrVal_1629 (Array Int Int)) (|ULTIMATE.start_step_#t~ite14#1| Int)) (let ((.cse9 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_1_Pointer~0.base (store .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.offset |ULTIMATE.start_step_#t~ite14#1|))) (.cse7 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset))) (or (< (+ 128 .cse7) 0) (< 0 (+ .cse7 1)) (< (mod (select (select (let ((.cse8 (store .cse9 c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse8 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse8 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289) (not (= (store (select .cse9 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse7) v_ArrVal_1629))))) (forall ((v_ArrVal_1631 Int) (v_ArrVal_1629 (Array Int Int)) (|ULTIMATE.start_step_#t~ite14#1| Int)) (let ((.cse12 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_1_Pointer~0.base (store .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.offset |ULTIMATE.start_step_#t~ite14#1|))) (.cse10 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset))) (or (< (+ 128 .cse10) 0) (< 0 (+ 2 .cse10)) (< (mod (select (select (let ((.cse11 (store .cse12 c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse11 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse11 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289) (not (= (store (select .cse12 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse10) v_ArrVal_1629))))))) is different from false [2024-11-23 23:28:14,322 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse6 (select |c_#memory_int#1| c_~WrapperStruct00_var_1_12_Pointer~0.base))) (and (forall ((~WrapperStruct00_var_1_8_Pointer~0.offset Int) (~WrapperStruct00_var_1_8_Pointer~0.base Int) (v_ArrVal_1631 Int) (~WrapperStruct00_var_1_14_Pointer~0.base Int) (~WrapperStruct00_var_1_14_Pointer~0.offset Int) (v_ArrVal_1629 (Array Int Int)) (v_ArrVal_1626 Int) (|ULTIMATE.start_step_#t~ite14#1| Int)) (let ((.cse0 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset)) (.cse1 (let ((.cse3 (let ((.cse4 (let ((.cse5 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_12_Pointer~0.base (store .cse6 c_~WrapperStruct00_var_1_12_Pointer~0.offset (select (select |c_#memory_int#1| ~WrapperStruct00_var_1_8_Pointer~0.base) ~WrapperStruct00_var_1_8_Pointer~0.offset))))) (store .cse5 c_~WrapperStruct00_var_1_13_Pointer~0.base (store (select .cse5 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset (select (select .cse5 ~WrapperStruct00_var_1_14_Pointer~0.base) ~WrapperStruct00_var_1_14_Pointer~0.offset)))))) (store .cse4 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse4 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_1626))))) (store .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset |ULTIMATE.start_step_#t~ite14#1|))))) (or (< (+ 128 .cse0) 0) (< 0 (+ .cse0 1)) (not (= v_ArrVal_1629 (store (select .cse1 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse0))) (< (mod (select (select (let ((.cse2 (store .cse1 c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse2 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289)))) (forall ((~WrapperStruct00_var_1_8_Pointer~0.offset Int) (~WrapperStruct00_var_1_8_Pointer~0.base Int) (v_ArrVal_1631 Int) (~WrapperStruct00_var_1_14_Pointer~0.base Int) (~WrapperStruct00_var_1_14_Pointer~0.offset Int) (v_ArrVal_1629 (Array Int Int)) (v_ArrVal_1626 Int) (|ULTIMATE.start_step_#t~ite14#1| Int)) (let ((.cse7 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset)) (.cse8 (let ((.cse10 (let ((.cse11 (let ((.cse12 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_12_Pointer~0.base (store .cse6 c_~WrapperStruct00_var_1_12_Pointer~0.offset (select (select |c_#memory_int#1| ~WrapperStruct00_var_1_8_Pointer~0.base) ~WrapperStruct00_var_1_8_Pointer~0.offset))))) (store .cse12 c_~WrapperStruct00_var_1_13_Pointer~0.base (store (select .cse12 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset (select (select .cse12 ~WrapperStruct00_var_1_14_Pointer~0.base) ~WrapperStruct00_var_1_14_Pointer~0.offset)))))) (store .cse11 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse11 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_1626))))) (store .cse10 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse10 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset |ULTIMATE.start_step_#t~ite14#1|))))) (or (< (+ 128 .cse7) 0) (not (= v_ArrVal_1629 (store (select .cse8 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse7))) (< 0 (+ 2 .cse7)) (< (mod (select (select (let ((.cse9 (store .cse8 c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse9 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse9 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289)))) (forall ((~WrapperStruct00_var_1_8_Pointer~0.offset Int) (~WrapperStruct00_var_1_8_Pointer~0.base Int) (v_ArrVal_1631 Int) (~WrapperStruct00_var_1_14_Pointer~0.base Int) (~WrapperStruct00_var_1_14_Pointer~0.offset Int) (v_ArrVal_1629 (Array Int Int)) (v_ArrVal_1626 Int) (|ULTIMATE.start_step_#t~ite14#1| Int)) (let ((.cse14 (let ((.cse16 (let ((.cse17 (let ((.cse18 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_12_Pointer~0.base (store .cse6 c_~WrapperStruct00_var_1_12_Pointer~0.offset (select (select |c_#memory_int#1| ~WrapperStruct00_var_1_8_Pointer~0.base) ~WrapperStruct00_var_1_8_Pointer~0.offset))))) (store .cse18 c_~WrapperStruct00_var_1_13_Pointer~0.base (store (select .cse18 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset (select (select .cse18 ~WrapperStruct00_var_1_14_Pointer~0.base) ~WrapperStruct00_var_1_14_Pointer~0.offset)))))) (store .cse17 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse17 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_1626))))) (store .cse16 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse16 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset |ULTIMATE.start_step_#t~ite14#1|)))) (.cse13 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset))) (or (< 127 .cse13) (not (= v_ArrVal_1629 (store (select .cse14 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse13))) (< (mod (select (select (let ((.cse15 (store .cse14 c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse15 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse15 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289) (< .cse13 0)))) (forall ((~WrapperStruct00_var_1_8_Pointer~0.offset Int) (~WrapperStruct00_var_1_8_Pointer~0.base Int) (v_ArrVal_1631 Int) (~WrapperStruct00_var_1_14_Pointer~0.base Int) (~WrapperStruct00_var_1_14_Pointer~0.offset Int) (v_ArrVal_1629 (Array Int Int)) (v_ArrVal_1626 Int) (|ULTIMATE.start_step_#t~ite14#1| Int)) (let ((.cse20 (let ((.cse22 (let ((.cse23 (let ((.cse24 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_12_Pointer~0.base (store .cse6 c_~WrapperStruct00_var_1_12_Pointer~0.offset (select (select |c_#memory_int#1| ~WrapperStruct00_var_1_8_Pointer~0.base) ~WrapperStruct00_var_1_8_Pointer~0.offset))))) (store .cse24 c_~WrapperStruct00_var_1_13_Pointer~0.base (store (select .cse24 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset (select (select .cse24 ~WrapperStruct00_var_1_14_Pointer~0.base) ~WrapperStruct00_var_1_14_Pointer~0.offset)))))) (store .cse23 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse23 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_1626))))) (store .cse22 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse22 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset |ULTIMATE.start_step_#t~ite14#1|)))) (.cse19 (select v_ArrVal_1629 c_~WrapperStruct00_var_1_5_Pointer~0.offset))) (or (< 127 .cse19) (forall ((~WrapperStruct00_var_1_9_Pointer~0.offset Int) (~WrapperStruct00_var_1_9_Pointer~0.base Int)) (< (mod (* 255 (select (select .cse20 ~WrapperStruct00_var_1_9_Pointer~0.base) ~WrapperStruct00_var_1_9_Pointer~0.offset)) 256) (+ 2 .cse19))) (not (= v_ArrVal_1629 (store (select .cse20 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset .cse19))) (< (mod (select (select (let ((.cse21 (store .cse20 c_~WrapperStruct00_var_1_5_Pointer~0.base v_ArrVal_1629))) (store .cse21 c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select .cse21 c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_1631))) c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) 4294967289) (< .cse19 0)))))) is different from false [2024-11-23 23:28:15,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160322814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:28:15,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:28:15,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2024-11-23 23:28:15,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109321183] [2024-11-23 23:28:15,010 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:28:15,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 23:28:15,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:15,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 23:28:15,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=566, Unknown=3, NotChecked=156, Total=870 [2024-11-23 23:28:15,012 INFO L87 Difference]: Start difference. First operand 428 states and 501 transitions. Second operand has 24 states, 22 states have (on average 5.181818181818182) internal successors, (114), 24 states have internal predecessors, (114), 9 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-23 23:28:20,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:28:24,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:28:26,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:28:30,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:28:34,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:28:39,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:28:40,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:28:44,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:28:48,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:28:50,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:28:52,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 23:28:52,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:52,834 INFO L93 Difference]: Finished difference Result 617 states and 711 transitions. [2024-11-23 23:28:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:28:52,835 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 5.181818181818182) internal successors, (114), 24 states have internal predecessors, (114), 9 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) Word has length 128 [2024-11-23 23:28:52,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:52,837 INFO L225 Difference]: With dead ends: 617 [2024-11-23 23:28:52,837 INFO L226 Difference]: Without dead ends: 219 [2024-11-23 23:28:52,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=298, Invalid=901, Unknown=3, NotChecked=204, Total=1406 [2024-11-23 23:28:52,844 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 299 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 124 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:28:52,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 211 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 614 Invalid, 11 Unknown, 0 Unchecked, 36.7s Time] [2024-11-23 23:28:52,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-23 23:28:52,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 215. [2024-11-23 23:28:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 176 states have (on average 1.0568181818181819) internal successors, (186), 176 states have internal predecessors, (186), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-23 23:28:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 242 transitions. [2024-11-23 23:28:52,985 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 242 transitions. Word has length 128 [2024-11-23 23:28:52,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:52,986 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 242 transitions. [2024-11-23 23:28:52,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 5.181818181818182) internal successors, (114), 24 states have internal predecessors, (114), 9 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-23 23:28:52,986 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 242 transitions. [2024-11-23 23:28:52,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-23 23:28:52,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:52,988 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:53,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-23 23:28:53,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:28:53,189 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:53,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:53,189 INFO L85 PathProgramCache]: Analyzing trace with hash 29267610, now seen corresponding path program 1 times [2024-11-23 23:28:53,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:53,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515713973] [2024-11-23 23:28:53,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:53,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:28:53,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [892792944] [2024-11-23 23:28:53,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:53,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:28:53,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:28:53,636 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:28:53,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32db50e3-720e-49a8-ae0e-5cf4b3504825/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 23:28:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:54,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-23 23:28:54,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:28:59,666 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 15 treesize of output 1 [2024-11-23 23:29:00,967 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 15 treesize of output 1 [2024-11-23 23:29:02,476 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 15 treesize of output 1 [2024-11-23 23:29:03,888 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 15 treesize of output 1 [2024-11-23 23:29:05,899 INFO L349 Elim1Store]: treesize reduction 361, result has 26.8 percent of original size [2024-11-23 23:29:05,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 76 treesize of output 186 [2024-11-23 23:29:07,093 INFO L349 Elim1Store]: treesize reduction 8, result has 83.7 percent of original size [2024-11-23 23:29:07,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 284 treesize of output 290 [2024-11-23 23:29:09,063 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-23 23:29:09,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 413 treesize of output 374 [2024-11-23 23:29:10,004 INFO L349 Elim1Store]: treesize reduction 24, result has 70.4 percent of original size [2024-11-23 23:29:10,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 395 treesize of output 385 [2024-11-23 23:29:21,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:29:21,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:29:22,109 INFO L349 Elim1Store]: treesize reduction 132, result has 27.5 percent of original size [2024-11-23 23:29:22,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 381 treesize of output 285 [2024-11-23 23:29:28,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:29:28,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:29:28,417 INFO L349 Elim1Store]: treesize reduction 140, result has 23.1 percent of original size [2024-11-23 23:29:28,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 485 treesize of output 365 [2024-11-23 23:29:35,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:29:35,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:29:35,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:29:35,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:29:35,295 INFO L349 Elim1Store]: treesize reduction 148, result has 25.3 percent of original size [2024-11-23 23:29:35,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 620 treesize of output 482 [2024-11-23 23:30:33,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:30:33,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:30:33,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:30:33,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:30:33,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:30:33,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:30:33,624 INFO L349 Elim1Store]: treesize reduction 188, result has 21.0 percent of original size [2024-11-23 23:30:33,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 784 treesize of output 602 [2024-11-23 23:31:10,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:10,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:10,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:10,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:10,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:10,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:10,493 INFO L349 Elim1Store]: treesize reduction 188, result has 21.0 percent of original size [2024-11-23 23:31:10,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 859 treesize of output 653 [2024-11-23 23:31:54,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:54,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:54,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:54,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:54,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:54,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:31:54,373 INFO L349 Elim1Store]: treesize reduction 188, result has 21.0 percent of original size [2024-11-23 23:31:54,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 1031 treesize of output 777 [2024-11-23 23:32:47,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:32:47,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:32:47,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:32:47,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:32:47,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:32:47,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:32:48,020 INFO L349 Elim1Store]: treesize reduction 212, result has 21.5 percent of original size [2024-11-23 23:32:48,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 1174 treesize of output 900 [2024-11-23 23:33:09,800 WARN L286 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 300 DAG size of output: 296 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 23:34:52,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:34:52,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:34:52,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:34:52,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:34:52,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:34:52,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:34:52,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:34:52,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-23 23:34:52,754 INFO L349 Elim1Store]: treesize reduction 224, result has 18.2 percent of original size [2024-11-23 23:34:52,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 14 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 2080 treesize of output 1525