./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.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_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/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_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/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_0039b6c4-122f-43fe-afad-4e9cf60ae015/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 86050a320677a833f953e3d24f630a372e53eb7ac1e89a394e20853921226e93 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:35:23,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:35:23,149 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:35:23,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:35:23,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:35:23,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:35:23,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:35:23,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:35:23,199 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:35:23,199 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:35:23,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:35:23,199 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:35:23,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:35:23,200 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:35:23,200 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:35:23,200 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:35:23,200 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:35:23,201 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:35:23,201 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:35:23,201 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:35:23,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:35:23,201 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:35:23,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:35:23,202 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:35:23,202 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:35:23,202 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:35:23,202 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:35:23,202 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:35:23,203 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:35:23,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:35:23,203 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:35:23,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:35:23,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:35:23,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:35:23,204 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:35:23,204 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:35:23,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:35:23,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:35:23,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:35:23,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:35:23,205 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:35:23,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:35:23,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:35:23,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:35:23,206 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:35:23,206 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:35:23,206 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:35:23,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:35:23,206 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_0039b6c4-122f-43fe-afad-4e9cf60ae015/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 -> 86050a320677a833f953e3d24f630a372e53eb7ac1e89a394e20853921226e93 [2024-11-23 18:35:23,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:35:23,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:35:23,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:35:23,639 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:35:23,639 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:35:23,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.i [2024-11-23 18:35:26,977 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/data/0bae9c85e/5ad9fc16789243f1b6a599d17fa80c63/FLAG3cb394d44 [2024-11-23 18:35:27,405 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:35:27,406 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.i [2024-11-23 18:35:27,424 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/data/0bae9c85e/5ad9fc16789243f1b6a599d17fa80c63/FLAG3cb394d44 [2024-11-23 18:35:27,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/data/0bae9c85e/5ad9fc16789243f1b6a599d17fa80c63 [2024-11-23 18:35:27,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:35:27,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:35:27,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:35:27,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:35:27,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:35:27,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:35:27" (1/1) ... [2024-11-23 18:35:27,556 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29260e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:27, skipping insertion in model container [2024-11-23 18:35:27,556 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:35:27" (1/1) ... [2024-11-23 18:35:27,605 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:35:27,817 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_0039b6c4-122f-43fe-afad-4e9cf60ae015/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.i[915,928] [2024-11-23 18:35:28,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:35:28,134 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:35:28,154 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_0039b6c4-122f-43fe-afad-4e9cf60ae015/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.i[915,928] [2024-11-23 18:35:28,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:35:28,338 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:35:28,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28 WrapperNode [2024-11-23 18:35:28,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:35:28,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:35:28,340 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:35:28,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:35:28,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,520 INFO L138 Inliner]: procedures = 26, calls = 74, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 623 [2024-11-23 18:35:28,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:35:28,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:35:28,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:35:28,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:35:28,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,585 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,664 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:35:28,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,709 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,712 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,738 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:35:28,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:35:28,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:35:28,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:35:28,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (1/1) ... [2024-11-23 18:35:28,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:35:28,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:35:28,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:35:28,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:35:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:35:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:35:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:35:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:35:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:35:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:35:29,134 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:35:29,136 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:35:31,167 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-23 18:35:31,167 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:35:31,197 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:35:31,202 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:35:31,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:35:31 BoogieIcfgContainer [2024-11-23 18:35:31,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:35:31,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:35:31,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:35:31,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:35:31,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:35:27" (1/3) ... [2024-11-23 18:35:31,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4878ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:35:31, skipping insertion in model container [2024-11-23 18:35:31,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:28" (2/3) ... [2024-11-23 18:35:31,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4878ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:35:31, skipping insertion in model container [2024-11-23 18:35:31,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:35:31" (3/3) ... [2024-11-23 18:35:31,220 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-4.i [2024-11-23 18:35:31,241 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:35:31,245 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-4.i that has 2 procedures, 242 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:35:31,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:35:31,370 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;@7142166b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:35:31,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:35:31,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 242 states, 178 states have (on average 1.5449438202247192) internal successors, (275), 179 states have internal predecessors, (275), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-23 18:35:31,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-23 18:35:31,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:31,423 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:31,424 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:31,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:31,432 INFO L85 PathProgramCache]: Analyzing trace with hash -375888651, now seen corresponding path program 1 times [2024-11-23 18:35:31,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:31,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797834229] [2024-11-23 18:35:31,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:31,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:32,881 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:35:32,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:32,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797834229] [2024-11-23 18:35:32,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797834229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:32,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:32,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:35:32,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366155298] [2024-11-23 18:35:32,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:32,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:35:32,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:32,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:35:32,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:35:32,936 INFO L87 Difference]: Start difference. First operand has 242 states, 178 states have (on average 1.5449438202247192) internal successors, (275), 179 states have internal predecessors, (275), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:33,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:33,055 INFO L93 Difference]: Finished difference Result 475 states and 845 transitions. [2024-11-23 18:35:33,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:35:33,058 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-23 18:35:33,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:33,070 INFO L225 Difference]: With dead ends: 475 [2024-11-23 18:35:33,070 INFO L226 Difference]: Without dead ends: 236 [2024-11-23 18:35:33,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:35:33,080 INFO L435 NwaCegarLoop]: 385 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, 385 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 18:35:33,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:33,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-23 18:35:33,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-11-23 18:35:33,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 173 states have (on average 1.5202312138728324) internal successors, (263), 173 states have internal predecessors, (263), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-23 18:35:33,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 385 transitions. [2024-11-23 18:35:33,189 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 385 transitions. Word has length 428 [2024-11-23 18:35:33,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:33,192 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 385 transitions. [2024-11-23 18:35:33,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:33,193 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 385 transitions. [2024-11-23 18:35:33,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-23 18:35:33,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:33,207 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:33,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:35:33,208 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:33,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:33,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1242613229, now seen corresponding path program 1 times [2024-11-23 18:35:33,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:33,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891914584] [2024-11-23 18:35:33,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:33,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:34,056 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:35:34,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:34,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891914584] [2024-11-23 18:35:34,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891914584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:34,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:34,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:35:34,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858871582] [2024-11-23 18:35:34,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:34,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:35:34,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:34,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:35:34,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:34,065 INFO L87 Difference]: Start difference. First operand 236 states and 385 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:34,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:34,395 INFO L93 Difference]: Finished difference Result 583 states and 952 transitions. [2024-11-23 18:35:34,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:35:34,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-23 18:35:34,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:34,404 INFO L225 Difference]: With dead ends: 583 [2024-11-23 18:35:34,407 INFO L226 Difference]: Without dead ends: 350 [2024-11-23 18:35:34,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:34,410 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 168 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:34,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 731 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:35:34,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-23 18:35:34,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 347. [2024-11-23 18:35:34,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 279 states have (on average 1.5448028673835126) internal successors, (431), 280 states have internal predecessors, (431), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-23 18:35:34,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 561 transitions. [2024-11-23 18:35:34,488 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 561 transitions. Word has length 428 [2024-11-23 18:35:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:34,490 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 561 transitions. [2024-11-23 18:35:34,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:34,491 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 561 transitions. [2024-11-23 18:35:34,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-23 18:35:34,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:34,502 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:34,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:35:34,502 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:34,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:34,507 INFO L85 PathProgramCache]: Analyzing trace with hash -806774613, now seen corresponding path program 1 times [2024-11-23 18:35:34,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:34,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553009187] [2024-11-23 18:35:34,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:34,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:36,639 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:35:36,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:36,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553009187] [2024-11-23 18:35:36,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553009187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:36,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:36,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:35:36,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349014915] [2024-11-23 18:35:36,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:36,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:35:36,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:36,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:35:36,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:35:36,647 INFO L87 Difference]: Start difference. First operand 347 states and 561 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:37,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:37,371 INFO L93 Difference]: Finished difference Result 1019 states and 1650 transitions. [2024-11-23 18:35:37,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:35:37,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-23 18:35:37,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:37,386 INFO L225 Difference]: With dead ends: 1019 [2024-11-23 18:35:37,386 INFO L226 Difference]: Without dead ends: 675 [2024-11-23 18:35:37,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:37,391 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 293 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:37,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 1132 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 18:35:37,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-23 18:35:37,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 479. [2024-11-23 18:35:37,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 348 states have (on average 1.4827586206896552) internal successors, (516), 349 states have internal predecessors, (516), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-23 18:35:37,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 768 transitions. [2024-11-23 18:35:37,512 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 768 transitions. Word has length 428 [2024-11-23 18:35:37,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:37,515 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 768 transitions. [2024-11-23 18:35:37,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:37,516 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 768 transitions. [2024-11-23 18:35:37,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-23 18:35:37,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:37,529 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:37,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:35:37,529 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:37,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:37,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1632221929, now seen corresponding path program 1 times [2024-11-23 18:35:37,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:37,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194893047] [2024-11-23 18:35:37,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:37,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:35:39,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:39,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194893047] [2024-11-23 18:35:39,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194893047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:39,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:39,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:35:39,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692500193] [2024-11-23 18:35:39,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:39,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:35:39,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:39,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:35:39,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:35:39,178 INFO L87 Difference]: Start difference. First operand 479 states and 768 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:39,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:39,719 INFO L93 Difference]: Finished difference Result 1026 states and 1658 transitions. [2024-11-23 18:35:39,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:35:39,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-23 18:35:39,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:39,732 INFO L225 Difference]: With dead ends: 1026 [2024-11-23 18:35:39,733 INFO L226 Difference]: Without dead ends: 675 [2024-11-23 18:35:39,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:39,736 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 328 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:39,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 1132 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:35:39,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-23 18:35:39,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 479. [2024-11-23 18:35:39,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 348 states have (on average 1.4798850574712643) internal successors, (515), 349 states have internal predecessors, (515), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-23 18:35:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 767 transitions. [2024-11-23 18:35:39,854 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 767 transitions. Word has length 428 [2024-11-23 18:35:39,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:39,855 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 767 transitions. [2024-11-23 18:35:39,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:39,858 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 767 transitions. [2024-11-23 18:35:39,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-23 18:35:39,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:39,870 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:39,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:35:39,871 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:39,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:39,872 INFO L85 PathProgramCache]: Analyzing trace with hash -276235861, now seen corresponding path program 1 times [2024-11-23 18:35:39,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:39,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305839866] [2024-11-23 18:35:39,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:39,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:43,153 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:35:43,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:43,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305839866] [2024-11-23 18:35:43,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305839866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:43,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:43,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:35:43,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585421097] [2024-11-23 18:35:43,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:43,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:35:43,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:43,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:35:43,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:35:43,160 INFO L87 Difference]: Start difference. First operand 479 states and 767 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:43,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:43,411 INFO L93 Difference]: Finished difference Result 1044 states and 1676 transitions. [2024-11-23 18:35:43,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:35:43,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-23 18:35:43,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:43,419 INFO L225 Difference]: With dead ends: 1044 [2024-11-23 18:35:43,419 INFO L226 Difference]: Without dead ends: 700 [2024-11-23 18:35:43,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:35:43,425 INFO L435 NwaCegarLoop]: 388 mSDtfsCounter, 360 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:43,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 969 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:35:43,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-23 18:35:43,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 487. [2024-11-23 18:35:43,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 355 states have (on average 1.4704225352112676) internal successors, (522), 356 states have internal predecessors, (522), 126 states have call successors, (126), 5 states have call predecessors, (126), 5 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-23 18:35:43,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 774 transitions. [2024-11-23 18:35:43,512 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 774 transitions. Word has length 428 [2024-11-23 18:35:43,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:43,515 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 774 transitions. [2024-11-23 18:35:43,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:43,516 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 774 transitions. [2024-11-23 18:35:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-23 18:35:43,526 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:43,527 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:43,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:35:43,527 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:43,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:43,529 INFO L85 PathProgramCache]: Analyzing trace with hash -235561111, now seen corresponding path program 1 times [2024-11-23 18:35:43,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:43,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103277487] [2024-11-23 18:35:43,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:43,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:45,817 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:35:45,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:45,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103277487] [2024-11-23 18:35:45,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103277487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:45,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:45,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:35:45,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533881413] [2024-11-23 18:35:45,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:45,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:35:45,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:45,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:35:45,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:35:45,823 INFO L87 Difference]: Start difference. First operand 487 states and 774 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:46,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:46,130 INFO L93 Difference]: Finished difference Result 1167 states and 1856 transitions. [2024-11-23 18:35:46,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:35:46,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-23 18:35:46,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:46,141 INFO L225 Difference]: With dead ends: 1167 [2024-11-23 18:35:46,141 INFO L226 Difference]: Without dead ends: 815 [2024-11-23 18:35:46,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:35:46,144 INFO L435 NwaCegarLoop]: 390 mSDtfsCounter, 234 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:46,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1121 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:35:46,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2024-11-23 18:35:46,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 585. [2024-11-23 18:35:46,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 453 states have (on average 1.5165562913907285) internal successors, (687), 454 states have internal predecessors, (687), 126 states have call successors, (126), 5 states have call predecessors, (126), 5 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-23 18:35:46,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 939 transitions. [2024-11-23 18:35:46,240 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 939 transitions. Word has length 428 [2024-11-23 18:35:46,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:46,241 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 939 transitions. [2024-11-23 18:35:46,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:46,242 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 939 transitions. [2024-11-23 18:35:46,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-23 18:35:46,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:46,254 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:46,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:35:46,255 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:46,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:46,256 INFO L85 PathProgramCache]: Analyzing trace with hash 187140715, now seen corresponding path program 1 times [2024-11-23 18:35:46,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:46,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108584746] [2024-11-23 18:35:46,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:46,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:35:51,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:51,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108584746] [2024-11-23 18:35:51,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108584746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:51,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:51,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:35:51,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688025903] [2024-11-23 18:35:51,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:51,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:35:51,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:51,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:35:51,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:35:51,047 INFO L87 Difference]: Start difference. First operand 585 states and 939 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:51,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:51,898 INFO L93 Difference]: Finished difference Result 1720 states and 2790 transitions. [2024-11-23 18:35:51,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:35:51,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2024-11-23 18:35:51,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:51,909 INFO L225 Difference]: With dead ends: 1720 [2024-11-23 18:35:51,909 INFO L226 Difference]: Without dead ends: 1270 [2024-11-23 18:35:51,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:35:51,912 INFO L435 NwaCegarLoop]: 373 mSDtfsCounter, 581 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:51,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 1615 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:35:51,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-11-23 18:35:52,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1033. [2024-11-23 18:35:52,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 833 states have (on average 1.5354141656662665) internal successors, (1279), 835 states have internal predecessors, (1279), 191 states have call successors, (191), 8 states have call predecessors, (191), 8 states have return successors, (191), 189 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-23 18:35:52,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1661 transitions. [2024-11-23 18:35:52,056 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1661 transitions. Word has length 428 [2024-11-23 18:35:52,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:52,057 INFO L471 AbstractCegarLoop]: Abstraction has 1033 states and 1661 transitions. [2024-11-23 18:35:52,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:35:52,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1661 transitions. [2024-11-23 18:35:52,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-23 18:35:52,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:52,068 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:52,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:35:52,069 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:52,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:52,069 INFO L85 PathProgramCache]: Analyzing trace with hash 479818800, now seen corresponding path program 1 times [2024-11-23 18:35:52,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:52,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335886045] [2024-11-23 18:35:52,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:52,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:57,408 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 12 proven. 168 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-23 18:35:57,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:57,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335886045] [2024-11-23 18:35:57,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335886045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:35:57,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897465466] [2024-11-23 18:35:57,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:57,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:35:57,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:35:57,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:35:57,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:35:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:58,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 18:35:58,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:35:59,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 964 proven. 168 refuted. 0 times theorem prover too weak. 6188 trivial. 0 not checked. [2024-11-23 18:35:59,328 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:36:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 12 proven. 168 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-23 18:36:00,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897465466] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:36:00,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:36:00,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-23 18:36:00,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457831527] [2024-11-23 18:36:00,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:36:00,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:36:00,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:00,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:36:00,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:36:00,317 INFO L87 Difference]: Start difference. First operand 1033 states and 1661 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (117), 2 states have call predecessors, (117), 4 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) [2024-11-23 18:36:01,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:01,135 INFO L93 Difference]: Finished difference Result 1631 states and 2618 transitions. [2024-11-23 18:36:01,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:36:01,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (117), 2 states have call predecessors, (117), 4 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) Word has length 429 [2024-11-23 18:36:01,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:01,146 INFO L225 Difference]: With dead ends: 1631 [2024-11-23 18:36:01,147 INFO L226 Difference]: Without dead ends: 733 [2024-11-23 18:36:01,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 865 GetRequests, 855 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:36:01,151 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 573 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:01,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 767 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:36:01,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-23 18:36:01,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 721. [2024-11-23 18:36:01,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 528 states have (on average 1.4659090909090908) internal successors, (774), 528 states have internal predecessors, (774), 183 states have call successors, (183), 9 states have call predecessors, (183), 9 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-23 18:36:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1140 transitions. [2024-11-23 18:36:01,268 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1140 transitions. Word has length 429 [2024-11-23 18:36:01,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:01,269 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1140 transitions. [2024-11-23 18:36:01,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (117), 2 states have call predecessors, (117), 4 states have return successors, (118), 2 states have call predecessors, (118), 2 states have call successors, (118) [2024-11-23 18:36:01,269 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1140 transitions. [2024-11-23 18:36:01,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-23 18:36:01,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:01,282 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:01,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 18:36:01,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:36:01,484 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:01,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:01,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1295439810, now seen corresponding path program 1 times [2024-11-23 18:36:01,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:01,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183977395] [2024-11-23 18:36:01,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:01,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:05,021 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 18 proven. 162 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-23 18:36:05,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:05,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183977395] [2024-11-23 18:36:05,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183977395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:36:05,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860338245] [2024-11-23 18:36:05,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:05,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:36:05,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:36:05,025 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:36:05,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:36:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:05,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 18:36:05,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:36:06,888 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 1368 proven. 162 refuted. 0 times theorem prover too weak. 5790 trivial. 0 not checked. [2024-11-23 18:36:06,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:36:07,675 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 18 proven. 162 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-23 18:36:07,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860338245] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:36:07,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:36:07,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-23 18:36:07,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828610710] [2024-11-23 18:36:07,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:36:07,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:36:07,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:07,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:36:07,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:36:07,680 INFO L87 Difference]: Start difference. First operand 721 states and 1140 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2024-11-23 18:36:08,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:08,379 INFO L93 Difference]: Finished difference Result 1229 states and 1926 transitions. [2024-11-23 18:36:08,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:36:08,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) Word has length 430 [2024-11-23 18:36:08,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:08,387 INFO L225 Difference]: With dead ends: 1229 [2024-11-23 18:36:08,388 INFO L226 Difference]: Without dead ends: 643 [2024-11-23 18:36:08,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 857 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:36:08,392 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 391 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:08,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 780 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 18:36:08,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-23 18:36:08,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 631. [2024-11-23 18:36:08,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 435 states have (on average 1.4068965517241379) internal successors, (612), 435 states have internal predecessors, (612), 183 states have call successors, (183), 12 states have call predecessors, (183), 12 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-23 18:36:08,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 978 transitions. [2024-11-23 18:36:08,474 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 978 transitions. Word has length 430 [2024-11-23 18:36:08,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:08,475 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 978 transitions. [2024-11-23 18:36:08,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2024-11-23 18:36:08,476 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 978 transitions. [2024-11-23 18:36:08,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-23 18:36:08,480 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:08,481 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:08,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 18:36:08,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:36:08,685 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:08,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:08,686 INFO L85 PathProgramCache]: Analyzing trace with hash 844679940, now seen corresponding path program 1 times [2024-11-23 18:36:08,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:08,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751112675] [2024-11-23 18:36:08,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:08,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:08,970 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:36:08,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:08,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751112675] [2024-11-23 18:36:08,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751112675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:08,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:08,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:36:08,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889976240] [2024-11-23 18:36:08,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:08,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:36:08,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:08,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:36:08,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:36:08,973 INFO L87 Difference]: Start difference. First operand 631 states and 978 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:36:09,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:09,101 INFO L93 Difference]: Finished difference Result 1122 states and 1746 transitions. [2024-11-23 18:36:09,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:36:09,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 430 [2024-11-23 18:36:09,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:09,111 INFO L225 Difference]: With dead ends: 1122 [2024-11-23 18:36:09,112 INFO L226 Difference]: Without dead ends: 634 [2024-11-23 18:36:09,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:36:09,115 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 365 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:09,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 792 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:36:09,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-23 18:36:09,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 631. [2024-11-23 18:36:09,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 435 states have (on average 1.4022988505747127) internal successors, (610), 435 states have internal predecessors, (610), 183 states have call successors, (183), 12 states have call predecessors, (183), 12 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-23 18:36:09,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 976 transitions. [2024-11-23 18:36:09,204 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 976 transitions. Word has length 430 [2024-11-23 18:36:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:09,206 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 976 transitions. [2024-11-23 18:36:09,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:36:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 976 transitions. [2024-11-23 18:36:09,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-23 18:36:09,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:09,211 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:09,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:36:09,211 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:09,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:09,212 INFO L85 PathProgramCache]: Analyzing trace with hash 885354690, now seen corresponding path program 1 times [2024-11-23 18:36:09,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:09,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180640554] [2024-11-23 18:36:09,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:09,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:10,659 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:36:10,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:10,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180640554] [2024-11-23 18:36:10,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180640554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:10,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:10,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:36:10,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569255084] [2024-11-23 18:36:10,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:10,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:36:10,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:10,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:36:10,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:36:10,661 INFO L87 Difference]: Start difference. First operand 631 states and 976 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:36:11,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:11,500 INFO L93 Difference]: Finished difference Result 1235 states and 1898 transitions. [2024-11-23 18:36:11,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:36:11,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 430 [2024-11-23 18:36:11,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:11,507 INFO L225 Difference]: With dead ends: 1235 [2024-11-23 18:36:11,507 INFO L226 Difference]: Without dead ends: 747 [2024-11-23 18:36:11,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:36:11,510 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 253 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:11,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 902 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 18:36:11,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-23 18:36:11,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 647. [2024-11-23 18:36:11,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 450 states have (on average 1.4) internal successors, (630), 450 states have internal predecessors, (630), 183 states have call successors, (183), 13 states have call predecessors, (183), 13 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-23 18:36:11,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 996 transitions. [2024-11-23 18:36:11,593 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 996 transitions. Word has length 430 [2024-11-23 18:36:11,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:11,595 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 996 transitions. [2024-11-23 18:36:11,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-23 18:36:11,595 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 996 transitions. [2024-11-23 18:36:11,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-23 18:36:11,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:11,599 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:11,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:36:11,600 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:11,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:11,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1108790016, now seen corresponding path program 1 times [2024-11-23 18:36:11,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:11,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575495632] [2024-11-23 18:36:11,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:11,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:15,642 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 126 proven. 54 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-23 18:36:15,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:15,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575495632] [2024-11-23 18:36:15,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575495632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:36:15,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071892547] [2024-11-23 18:36:15,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:15,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:36:15,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:36:15,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:36:15,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 18:36:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:16,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 18:36:16,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:36:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3340 proven. 60 refuted. 0 times theorem prover too weak. 3920 trivial. 0 not checked. [2024-11-23 18:36:17,390 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:36:18,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 120 proven. 60 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-23 18:36:18,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071892547] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:36:18,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:36:18,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 16 [2024-11-23 18:36:18,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498072268] [2024-11-23 18:36:18,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:36:18,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 18:36:18,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:18,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 18:36:18,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:36:18,545 INFO L87 Difference]: Start difference. First operand 647 states and 996 transitions. Second operand has 16 states, 16 states have (on average 19.0625) internal successors, (305), 16 states have internal predecessors, (305), 4 states have call successors, (142), 2 states have call predecessors, (142), 4 states have return successors, (143), 4 states have call predecessors, (143), 4 states have call successors, (143) [2024-11-23 18:36:22,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:22,038 INFO L93 Difference]: Finished difference Result 1390 states and 2128 transitions. [2024-11-23 18:36:22,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-23 18:36:22,039 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 19.0625) internal successors, (305), 16 states have internal predecessors, (305), 4 states have call successors, (142), 2 states have call predecessors, (142), 4 states have return successors, (143), 4 states have call predecessors, (143), 4 states have call successors, (143) Word has length 430 [2024-11-23 18:36:22,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:22,049 INFO L225 Difference]: With dead ends: 1390 [2024-11-23 18:36:22,050 INFO L226 Difference]: Without dead ends: 890 [2024-11-23 18:36:22,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 895 GetRequests, 854 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=349, Invalid=1373, Unknown=0, NotChecked=0, Total=1722 [2024-11-23 18:36:22,054 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 1798 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:22,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1799 Valid, 2385 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-23 18:36:22,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2024-11-23 18:36:22,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 716. [2024-11-23 18:36:22,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 513 states have (on average 1.3859649122807018) internal successors, (711), 513 states have internal predecessors, (711), 183 states have call successors, (183), 19 states have call predecessors, (183), 19 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-23 18:36:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1077 transitions. [2024-11-23 18:36:22,183 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1077 transitions. Word has length 430 [2024-11-23 18:36:22,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:22,184 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 1077 transitions. [2024-11-23 18:36:22,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 19.0625) internal successors, (305), 16 states have internal predecessors, (305), 4 states have call successors, (142), 2 states have call predecessors, (142), 4 states have return successors, (143), 4 states have call predecessors, (143), 4 states have call successors, (143) [2024-11-23 18:36:22,185 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1077 transitions. [2024-11-23 18:36:22,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-23 18:36:22,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:22,212 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:22,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 18:36:22,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-23 18:36:22,413 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:22,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:22,415 INFO L85 PathProgramCache]: Analyzing trace with hash 163797340, now seen corresponding path program 1 times [2024-11-23 18:36:22,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:22,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841536825] [2024-11-23 18:36:22,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:22,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:36:27,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:27,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841536825] [2024-11-23 18:36:27,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841536825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:27,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:27,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 18:36:27,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73164059] [2024-11-23 18:36:27,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:27,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 18:36:27,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:27,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 18:36:27,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-23 18:36:27,096 INFO L87 Difference]: Start difference. First operand 716 states and 1077 transitions. Second operand has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 11 states have internal predecessors, (130), 3 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2024-11-23 18:36:29,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:29,383 INFO L93 Difference]: Finished difference Result 1707 states and 2603 transitions. [2024-11-23 18:36:29,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:36:29,384 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 11 states have internal predecessors, (130), 3 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 432 [2024-11-23 18:36:29,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:29,392 INFO L225 Difference]: With dead ends: 1707 [2024-11-23 18:36:29,392 INFO L226 Difference]: Without dead ends: 1191 [2024-11-23 18:36:29,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-23 18:36:29,396 INFO L435 NwaCegarLoop]: 392 mSDtfsCounter, 1295 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 2502 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:29,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 2502 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-23 18:36:29,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2024-11-23 18:36:29,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 861. [2024-11-23 18:36:29,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 658 states have (on average 1.4346504559270516) internal successors, (944), 658 states have internal predecessors, (944), 183 states have call successors, (183), 19 states have call predecessors, (183), 19 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-23 18:36:29,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1310 transitions. [2024-11-23 18:36:29,518 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1310 transitions. Word has length 432 [2024-11-23 18:36:29,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:29,519 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1310 transitions. [2024-11-23 18:36:29,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 11 states have internal predecessors, (130), 3 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2024-11-23 18:36:29,520 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1310 transitions. [2024-11-23 18:36:29,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-23 18:36:29,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:29,524 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:29,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 18:36:29,524 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:29,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:29,525 INFO L85 PathProgramCache]: Analyzing trace with hash -803553314, now seen corresponding path program 1 times [2024-11-23 18:36:29,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:29,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896335849] [2024-11-23 18:36:29,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:29,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:36:35,128 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:36:35,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:36:35,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896335849] [2024-11-23 18:36:35,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896335849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:36:35,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:36:35,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:36:35,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303710355] [2024-11-23 18:36:35,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:36:35,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:36:35,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:36:35,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:36:35,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:36:35,131 INFO L87 Difference]: Start difference. First operand 861 states and 1310 transitions. Second operand has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-23 18:36:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:38,319 INFO L93 Difference]: Finished difference Result 2241 states and 3393 transitions. [2024-11-23 18:36:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 18:36:38,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 432 [2024-11-23 18:36:38,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:38,331 INFO L225 Difference]: With dead ends: 2241 [2024-11-23 18:36:38,331 INFO L226 Difference]: Without dead ends: 1725 [2024-11-23 18:36:38,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-11-23 18:36:38,335 INFO L435 NwaCegarLoop]: 614 mSDtfsCounter, 1083 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 2997 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:38,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 2997 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 18:36:38,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2024-11-23 18:36:38,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1537. [2024-11-23 18:36:38,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1203 states have (on average 1.4497090606816292) internal successors, (1744), 1205 states have internal predecessors, (1744), 300 states have call successors, (300), 33 states have call predecessors, (300), 33 states have return successors, (300), 298 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-23 18:36:38,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2344 transitions. [2024-11-23 18:36:38,549 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2344 transitions. Word has length 432 [2024-11-23 18:36:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:36:38,550 INFO L471 AbstractCegarLoop]: Abstraction has 1537 states and 2344 transitions. [2024-11-23 18:36:38,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-23 18:36:38,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2344 transitions. [2024-11-23 18:36:38,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-23 18:36:38,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:36:38,555 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:36:38,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 18:36:38,556 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:36:38,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:36:38,558 INFO L85 PathProgramCache]: Analyzing trace with hash -251889608, now seen corresponding path program 1 times [2024-11-23 18:36:38,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:36:38,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986631483] [2024-11-23 18:36:38,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:36:38,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:36:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:04,169 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-23 18:37:04,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:37:04,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986631483] [2024-11-23 18:37:04,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986631483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:37:04,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:37:04,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-23 18:37:04,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538217929] [2024-11-23 18:37:04,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:37:04,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 18:37:04,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:37:04,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 18:37:04,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-11-23 18:37:04,171 INFO L87 Difference]: Start difference. First operand 1537 states and 2344 transitions. Second operand has 24 states, 24 states have (on average 5.458333333333333) internal successors, (131), 24 states have internal predecessors, (131), 5 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 5 states have call predecessors, (61), 5 states have call successors, (61) [2024-11-23 18:37:19,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:37:19,731 INFO L93 Difference]: Finished difference Result 5680 states and 8754 transitions. [2024-11-23 18:37:19,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-23 18:37:19,731 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.458333333333333) internal successors, (131), 24 states have internal predecessors, (131), 5 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 5 states have call predecessors, (61), 5 states have call successors, (61) Word has length 433 [2024-11-23 18:37:19,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:37:19,748 INFO L225 Difference]: With dead ends: 5680 [2024-11-23 18:37:19,748 INFO L226 Difference]: Without dead ends: 4488 [2024-11-23 18:37:19,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=476, Invalid=1416, Unknown=0, NotChecked=0, Total=1892 [2024-11-23 18:37:19,753 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 7649 mSDsluCounter, 3244 mSDsCounter, 0 mSdLazyCounter, 2914 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7649 SdHoareTripleChecker+Valid, 3567 SdHoareTripleChecker+Invalid, 3302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 2914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-23 18:37:19,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7649 Valid, 3567 Invalid, 3302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [388 Valid, 2914 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-11-23 18:37:19,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4488 states. [2024-11-23 18:37:19,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4488 to 1714. [2024-11-23 18:37:19,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1380 states have (on average 1.468840579710145) internal successors, (2027), 1382 states have internal predecessors, (2027), 300 states have call successors, (300), 33 states have call predecessors, (300), 33 states have return successors, (300), 298 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-23 18:37:19,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2627 transitions. [2024-11-23 18:37:20,003 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2627 transitions. Word has length 433 [2024-11-23 18:37:20,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:37:20,006 INFO L471 AbstractCegarLoop]: Abstraction has 1714 states and 2627 transitions. [2024-11-23 18:37:20,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.458333333333333) internal successors, (131), 24 states have internal predecessors, (131), 5 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 5 states have call predecessors, (61), 5 states have call successors, (61) [2024-11-23 18:37:20,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2627 transitions. [2024-11-23 18:37:20,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-23 18:37:20,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:37:20,012 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:37:20,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 18:37:20,012 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:37:20,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:37:20,013 INFO L85 PathProgramCache]: Analyzing trace with hash 656265674, now seen corresponding path program 1 times [2024-11-23 18:37:20,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:37:20,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661064767] [2024-11-23 18:37:20,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:20,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:37:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 324 proven. 30 refuted. 0 times theorem prover too weak. 6966 trivial. 0 not checked. [2024-11-23 18:37:25,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:37:25,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661064767] [2024-11-23 18:37:25,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661064767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:37:25,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529284062] [2024-11-23 18:37:25,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:37:25,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:37:25,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:37:25,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:37:25,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0039b6c4-122f-43fe-afad-4e9cf60ae015/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 18:37:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:37:26,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-23 18:37:26,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:37:44,263 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 4415 proven. 633 refuted. 0 times theorem prover too weak. 2272 trivial. 0 not checked. [2024-11-23 18:37:44,264 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:37:49,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529284062] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:37:49,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:37:49,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 33] total 45 [2024-11-23 18:37:49,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340223079] [2024-11-23 18:37:49,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 18:37:49,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-23 18:37:49,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:37:49,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-23 18:37:49,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=2992, Unknown=0, NotChecked=0, Total=3306 [2024-11-23 18:37:49,235 INFO L87 Difference]: Start difference. First operand 1714 states and 2627 transitions. Second operand has 45 states, 44 states have (on average 6.5227272727272725) internal successors, (287), 43 states have internal predecessors, (287), 11 states have call successors, (122), 8 states have call predecessors, (122), 13 states have return successors, (122), 11 states have call predecessors, (122), 11 states have call successors, (122) [2024-11-23 18:37:51,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, Real, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:53,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:37:55,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:01,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:06,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:10,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:14,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:18,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:22,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:26,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:29,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:33,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:37,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:41,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:47,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:51,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:38:54,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:00,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:04,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:18,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:23,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:24,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:30,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:42,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:39:53,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:39:58,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:02,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:13,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:17,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:19,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:23,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:27,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:31,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:36,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:40,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:44,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:48,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:52,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:40:54,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:03,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:07,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:11,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:22,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:41,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:52,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:56,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:41:57,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:00,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:05,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:10,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:11,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:15,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:19,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:23,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:28,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:32,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:36,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:40,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:41,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:43,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:47,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:51,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:42:55,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:42:59,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:04,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:08,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:10,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:14,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:18,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:22,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:26,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:31,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:35,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:39,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:47,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:52,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:43:56,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:44:01,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:44:05,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:44:09,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:44:14,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:44:18,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:44:22,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:44:26,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:44:31,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:44:35,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:44:39,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:44:50,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:44:54,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:44:59,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:04,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:09,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:14,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:18,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:22,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:27,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:31,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:33,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:38,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:42,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:46,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:51,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:45:55,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:46:00,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:46:04,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:46:15,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:46:44,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:46:48,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:01,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:05,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:10,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:14,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:18,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:20,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:25,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:29,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:32,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:34,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:38,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:42,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:46,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:51,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:53,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:47:56,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:01,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:05,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:09,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:11,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:15,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:16,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:20,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:24,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:26,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:30,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:33,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:37,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:41,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:46,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:50,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:54,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:48:57,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:49:01,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:49:05,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:49:08,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:49:13,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:49:17,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:49:21,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:49:25,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:49:29,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 18:49:32,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:49:36,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 18:49:40,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0]