./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-85.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_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/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_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/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_9de47376-396c-4908-9695-f853b82aca7a/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 f2dab74649212a3ffb00bb2114fde15cc6c5343aaff8c111997aa1541045c9bd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:10:21,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:10:21,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:10:21,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:10:21,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:10:21,694 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:10:21,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:10:21,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:10:21,698 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:10:21,698 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:10:21,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:10:21,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:10:21,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:10:21,699 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:10:21,699 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:10:21,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:10:21,701 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:10:21,701 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:10:21,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:10:21,702 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:10:21,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:10:21,702 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:10:21,702 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:10:21,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:10:21,703 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:10:21,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:10:21,703 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:10:21,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:10:21,704 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:10:21,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:10:21,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:10:21,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:10:21,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:21,705 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:10:21,705 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:10:21,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:10:21,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:10:21,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:21,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:10:21,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:10:21,707 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:10:21,707 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:10:21,707 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:10:21,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:10:21,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:10:21,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:10:21,707 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:10:21,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:10:21,708 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_9de47376-396c-4908-9695-f853b82aca7a/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 -> f2dab74649212a3ffb00bb2114fde15cc6c5343aaff8c111997aa1541045c9bd [2024-11-24 00:10:22,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:10:22,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:10:22,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:10:22,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:10:22,086 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:10:22,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-85.i [2024-11-24 00:10:25,187 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/data/6a88fa426/05568f857548452cb3d25e0eb5316b06/FLAG4f1c4d7f0 [2024-11-24 00:10:25,559 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:10:25,563 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-85.i [2024-11-24 00:10:25,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/data/6a88fa426/05568f857548452cb3d25e0eb5316b06/FLAG4f1c4d7f0 [2024-11-24 00:10:25,641 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/data/6a88fa426/05568f857548452cb3d25e0eb5316b06 [2024-11-24 00:10:25,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:10:25,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:10:25,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:10:25,648 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:10:25,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:10:25,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:10:25" (1/1) ... [2024-11-24 00:10:25,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3ca16e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:25, skipping insertion in model container [2024-11-24 00:10:25,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:10:25" (1/1) ... [2024-11-24 00:10:25,677 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:10:25,867 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_9de47376-396c-4908-9695-f853b82aca7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-85.i[916,929] [2024-11-24 00:10:26,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:10:26,036 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:10:26,057 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_9de47376-396c-4908-9695-f853b82aca7a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-85.i[916,929] [2024-11-24 00:10:26,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:10:26,130 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:10:26,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26 WrapperNode [2024-11-24 00:10:26,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:10:26,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:10:26,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:10:26,133 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:10:26,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,157 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,213 INFO L138 Inliner]: procedures = 27, calls = 178, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 520 [2024-11-24 00:10:26,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:10:26,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:10:26,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:10:26,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:10:26,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,256 INFO L175 MemorySlicer]: Split 140 memory accesses to 6 slices as follows [2, 70, 25, 7, 29, 7]. 50 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 0, 3, 1, 2, 1]. The 33 writes are split as follows [0, 23, 4, 3, 2, 1]. [2024-11-24 00:10:26,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,282 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,289 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,311 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:10:26,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:10:26,323 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:10:26,323 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:10:26,324 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (1/1) ... [2024-11-24 00:10:26,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:10:26,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:26,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:10:26,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:10:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:10:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 00:10:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 00:10:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 00:10:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 00:10:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 00:10:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 00:10:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:10:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:10:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:10:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:10:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:10:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:10:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:10:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:10:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:10:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:10:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:10:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:10:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:10:26,404 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:10:26,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:10:26,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:10:26,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:10:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:10:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:10:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:10:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:10:26,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:10:26,640 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:10:26,643 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:10:27,517 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-11-24 00:10:27,517 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:10:27,534 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:10:27,534 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:10:27,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:27 BoogieIcfgContainer [2024-11-24 00:10:27,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:10:27,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:10:27,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:10:27,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:10:27,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:10:25" (1/3) ... [2024-11-24 00:10:27,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a33ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:10:27, skipping insertion in model container [2024-11-24 00:10:27,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:10:26" (2/3) ... [2024-11-24 00:10:27,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a33ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:10:27, skipping insertion in model container [2024-11-24 00:10:27,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:10:27" (3/3) ... [2024-11-24 00:10:27,548 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-85.i [2024-11-24 00:10:27,565 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:10:27,567 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-85.i that has 2 procedures, 131 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:10:27,651 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:10:27,669 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;@5622bce1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:10:27,670 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:10:27,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 105 states have (on average 1.380952380952381) internal successors, (145), 106 states have internal predecessors, (145), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 00:10:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-24 00:10:27,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:27,698 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:27,700 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:27,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:27,706 INFO L85 PathProgramCache]: Analyzing trace with hash -632733008, now seen corresponding path program 1 times [2024-11-24 00:10:27,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:27,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052188396] [2024-11-24 00:10:27,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:27,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:28,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-24 00:10:28,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:28,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052188396] [2024-11-24 00:10:28,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052188396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:28,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483590658] [2024-11-24 00:10:28,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:28,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:28,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:28,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:28,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:10:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:28,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:10:28,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-24 00:10:28,729 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:10:28,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483590658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:28,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:10:28,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:10:28,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070886291] [2024-11-24 00:10:28,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:28,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:10:28,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:28,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:10:28,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:10:28,775 INFO L87 Difference]: Start difference. First operand has 131 states, 105 states have (on average 1.380952380952381) internal successors, (145), 106 states have internal predecessors, (145), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:10:28,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:28,831 INFO L93 Difference]: Finished difference Result 255 states and 399 transitions. [2024-11-24 00:10:28,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:10:28,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 179 [2024-11-24 00:10:28,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:28,844 INFO L225 Difference]: With dead ends: 255 [2024-11-24 00:10:28,846 INFO L226 Difference]: Without dead ends: 127 [2024-11-24 00:10:28,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:10:28,859 INFO L435 NwaCegarLoop]: 184 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, 184 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 [2024-11-24 00:10:28,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:10:28,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-24 00:10:28,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-24 00:10:28,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 102 states have (on average 1.3529411764705883) internal successors, (138), 102 states have internal predecessors, (138), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-24 00:10:28,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 184 transitions. [2024-11-24 00:10:28,932 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 184 transitions. Word has length 179 [2024-11-24 00:10:28,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:28,932 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 184 transitions. [2024-11-24 00:10:28,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:10:28,933 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 184 transitions. [2024-11-24 00:10:28,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-24 00:10:28,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:28,937 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:28,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:10:29,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:10:29,141 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:29,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:29,142 INFO L85 PathProgramCache]: Analyzing trace with hash -493224382, now seen corresponding path program 1 times [2024-11-24 00:10:29,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:29,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772124074] [2024-11-24 00:10:29,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:29,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:33,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:33,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:33,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772124074] [2024-11-24 00:10:33,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772124074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:33,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:33,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:10:33,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545001748] [2024-11-24 00:10:33,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:33,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:10:33,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:33,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:10:33,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:10:33,643 INFO L87 Difference]: Start difference. First operand 127 states and 184 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:10:34,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:34,664 INFO L93 Difference]: Finished difference Result 470 states and 679 transitions. [2024-11-24 00:10:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:10:34,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 179 [2024-11-24 00:10:34,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:34,670 INFO L225 Difference]: With dead ends: 470 [2024-11-24 00:10:34,671 INFO L226 Difference]: Without dead ends: 346 [2024-11-24 00:10:34,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:10:34,673 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 524 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:34,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 612 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:10:34,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-24 00:10:34,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 199. [2024-11-24 00:10:34,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 171 states have (on average 1.391812865497076) internal successors, (238), 172 states have internal predecessors, (238), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:34,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 288 transitions. [2024-11-24 00:10:34,722 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 288 transitions. Word has length 179 [2024-11-24 00:10:34,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:34,723 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 288 transitions. [2024-11-24 00:10:34,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:10:34,724 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 288 transitions. [2024-11-24 00:10:34,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 00:10:34,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:34,731 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:34,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:10:34,732 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:34,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:34,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1535301185, now seen corresponding path program 1 times [2024-11-24 00:10:34,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:34,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101250592] [2024-11-24 00:10:34,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:34,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:35,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:35,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101250592] [2024-11-24 00:10:35,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101250592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:35,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:35,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:10:35,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423416478] [2024-11-24 00:10:35,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:35,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:35,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:35,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:35,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:35,336 INFO L87 Difference]: Start difference. First operand 199 states and 288 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:35,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:35,865 INFO L93 Difference]: Finished difference Result 575 states and 834 transitions. [2024-11-24 00:10:35,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:35,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 00:10:35,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:35,871 INFO L225 Difference]: With dead ends: 575 [2024-11-24 00:10:35,871 INFO L226 Difference]: Without dead ends: 379 [2024-11-24 00:10:35,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:10:35,874 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 160 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:35,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 508 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:10:35,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-24 00:10:35,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 203. [2024-11-24 00:10:35,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 175 states have (on average 1.3828571428571428) internal successors, (242), 176 states have internal predecessors, (242), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:35,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 292 transitions. [2024-11-24 00:10:35,908 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 292 transitions. Word has length 180 [2024-11-24 00:10:35,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:35,911 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 292 transitions. [2024-11-24 00:10:35,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:35,912 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 292 transitions. [2024-11-24 00:10:35,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 00:10:35,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:35,915 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:35,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:10:35,916 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:35,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:35,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1213410666, now seen corresponding path program 1 times [2024-11-24 00:10:35,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:35,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408521621] [2024-11-24 00:10:35,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:35,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:36,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:36,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:36,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408521621] [2024-11-24 00:10:36,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408521621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:36,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:36,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:10:36,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862227388] [2024-11-24 00:10:36,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:36,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:10:36,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:36,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:10:36,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:10:36,865 INFO L87 Difference]: Start difference. First operand 203 states and 292 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:37,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:37,766 INFO L93 Difference]: Finished difference Result 782 states and 1124 transitions. [2024-11-24 00:10:37,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:10:37,767 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 00:10:37,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:37,774 INFO L225 Difference]: With dead ends: 782 [2024-11-24 00:10:37,775 INFO L226 Difference]: Without dead ends: 582 [2024-11-24 00:10:37,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:10:37,777 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 414 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:37,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 995 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:10:37,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-24 00:10:37,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 249. [2024-11-24 00:10:37,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 221 states have (on average 1.3936651583710407) internal successors, (308), 222 states have internal predecessors, (308), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 358 transitions. [2024-11-24 00:10:37,819 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 358 transitions. Word has length 180 [2024-11-24 00:10:37,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:37,820 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 358 transitions. [2024-11-24 00:10:37,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:37,820 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 358 transitions. [2024-11-24 00:10:37,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 00:10:37,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:37,824 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:37,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:10:37,824 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:37,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:37,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2060488276, now seen corresponding path program 1 times [2024-11-24 00:10:37,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:37,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929930886] [2024-11-24 00:10:37,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:37,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 24 proven. 42 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:10:39,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:39,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929930886] [2024-11-24 00:10:39,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929930886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:39,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214412479] [2024-11-24 00:10:39,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:39,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:39,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:39,373 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:39,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:10:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:39,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:10:39,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:39,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-24 00:10:39,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:39,873 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:10:39,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214412479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:39,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:10:39,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-24 00:10:39,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323977149] [2024-11-24 00:10:39,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:39,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:39,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:39,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:39,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:10:39,876 INFO L87 Difference]: Start difference. First operand 249 states and 358 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:40,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:40,093 INFO L93 Difference]: Finished difference Result 737 states and 1062 transitions. [2024-11-24 00:10:40,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:10:40,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 00:10:40,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:40,097 INFO L225 Difference]: With dead ends: 737 [2024-11-24 00:10:40,097 INFO L226 Difference]: Without dead ends: 491 [2024-11-24 00:10:40,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:10:40,099 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 177 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:40,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1843 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:10:40,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-24 00:10:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 263. [2024-11-24 00:10:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 235 states have (on average 1.3787234042553191) internal successors, (324), 236 states have internal predecessors, (324), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 374 transitions. [2024-11-24 00:10:40,124 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 374 transitions. Word has length 180 [2024-11-24 00:10:40,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:40,125 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 374 transitions. [2024-11-24 00:10:40,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:40,125 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 374 transitions. [2024-11-24 00:10:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 00:10:40,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:40,128 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:40,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:10:40,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:40,329 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:40,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:40,329 INFO L85 PathProgramCache]: Analyzing trace with hash -395762216, now seen corresponding path program 1 times [2024-11-24 00:10:40,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:40,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897748957] [2024-11-24 00:10:40,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:40,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:41,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 24 proven. 42 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:10:41,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:41,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897748957] [2024-11-24 00:10:41,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897748957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:41,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012021776] [2024-11-24 00:10:41,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:41,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:41,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:41,963 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:41,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:10:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:42,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-24 00:10:42,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:42,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-24 00:10:42,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2024-11-24 00:10:42,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-24 00:10:42,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-24 00:10:42,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:10:42,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:10:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:43,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012021776] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:43,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:10:43,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 12] total 20 [2024-11-24 00:10:43,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815037772] [2024-11-24 00:10:43,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:43,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:43,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:43,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:43,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:10:43,017 INFO L87 Difference]: Start difference. First operand 263 states and 374 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:43,789 INFO L93 Difference]: Finished difference Result 677 states and 964 transitions. [2024-11-24 00:10:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:10:43,790 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 00:10:43,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:43,793 INFO L225 Difference]: With dead ends: 677 [2024-11-24 00:10:43,794 INFO L226 Difference]: Without dead ends: 417 [2024-11-24 00:10:43,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:10:43,796 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 144 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:43,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1515 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:10:43,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-24 00:10:43,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 265. [2024-11-24 00:10:43,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 237 states have (on average 1.3839662447257384) internal successors, (328), 238 states have internal predecessors, (328), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:43,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 378 transitions. [2024-11-24 00:10:43,825 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 378 transitions. Word has length 180 [2024-11-24 00:10:43,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:43,826 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 378 transitions. [2024-11-24 00:10:43,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:43,826 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 378 transitions. [2024-11-24 00:10:43,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 00:10:43,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:43,830 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:43,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:10:44,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-24 00:10:44,034 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:44,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:44,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1416830570, now seen corresponding path program 1 times [2024-11-24 00:10:44,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:44,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295346690] [2024-11-24 00:10:44,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:44,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:44,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:44,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:44,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295346690] [2024-11-24 00:10:44,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295346690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:44,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:44,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:10:44,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131800519] [2024-11-24 00:10:44,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:44,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:10:44,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:44,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:10:44,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:10:44,639 INFO L87 Difference]: Start difference. First operand 265 states and 378 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:45,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:45,371 INFO L93 Difference]: Finished difference Result 868 states and 1236 transitions. [2024-11-24 00:10:45,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:10:45,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 00:10:45,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:45,378 INFO L225 Difference]: With dead ends: 868 [2024-11-24 00:10:45,378 INFO L226 Difference]: Without dead ends: 606 [2024-11-24 00:10:45,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:10:45,383 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 321 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:45,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 1584 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:10:45,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-24 00:10:45,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 273. [2024-11-24 00:10:45,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 245 states have (on average 1.3714285714285714) internal successors, (336), 246 states have internal predecessors, (336), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:45,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 386 transitions. [2024-11-24 00:10:45,427 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 386 transitions. Word has length 180 [2024-11-24 00:10:45,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:45,430 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 386 transitions. [2024-11-24 00:10:45,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:45,430 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 386 transitions. [2024-11-24 00:10:45,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 00:10:45,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:45,433 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:45,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:10:45,433 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:45,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:45,438 INFO L85 PathProgramCache]: Analyzing trace with hash 576235292, now seen corresponding path program 1 times [2024-11-24 00:10:45,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:45,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843291860] [2024-11-24 00:10:45,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:45,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:46,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:46,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:46,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843291860] [2024-11-24 00:10:46,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843291860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:46,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:46,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:10:46,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171515190] [2024-11-24 00:10:46,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:46,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:10:46,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:46,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:10:46,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:10:46,068 INFO L87 Difference]: Start difference. First operand 273 states and 386 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:46,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:46,292 INFO L93 Difference]: Finished difference Result 705 states and 1000 transitions. [2024-11-24 00:10:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:10:46,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 00:10:46,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:46,300 INFO L225 Difference]: With dead ends: 705 [2024-11-24 00:10:46,300 INFO L226 Difference]: Without dead ends: 435 [2024-11-24 00:10:46,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:10:46,302 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 147 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:46,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1196 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:10:46,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-24 00:10:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 281. [2024-11-24 00:10:46,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 253 states have (on average 1.3754940711462451) internal successors, (348), 254 states have internal predecessors, (348), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:46,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 398 transitions. [2024-11-24 00:10:46,340 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 398 transitions. Word has length 180 [2024-11-24 00:10:46,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:46,340 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 398 transitions. [2024-11-24 00:10:46,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:46,341 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 398 transitions. [2024-11-24 00:10:46,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 00:10:46,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:46,347 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:46,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:10:46,348 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:46,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:46,348 INFO L85 PathProgramCache]: Analyzing trace with hash -444833062, now seen corresponding path program 1 times [2024-11-24 00:10:46,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:46,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504490799] [2024-11-24 00:10:46,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:46,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:46,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:46,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504490799] [2024-11-24 00:10:46,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504490799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:46,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:46,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:10:46,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85233583] [2024-11-24 00:10:46,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:46,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:10:46,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:46,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:10:46,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:10:46,932 INFO L87 Difference]: Start difference. First operand 281 states and 398 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:47,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:47,422 INFO L93 Difference]: Finished difference Result 837 states and 1184 transitions. [2024-11-24 00:10:47,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:10:47,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 00:10:47,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:47,427 INFO L225 Difference]: With dead ends: 837 [2024-11-24 00:10:47,427 INFO L226 Difference]: Without dead ends: 559 [2024-11-24 00:10:47,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:47,429 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 157 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:47,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 912 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:10:47,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-24 00:10:47,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 341. [2024-11-24 00:10:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 313 states have (on average 1.3993610223642172) internal successors, (438), 314 states have internal predecessors, (438), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:47,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 488 transitions. [2024-11-24 00:10:47,470 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 488 transitions. Word has length 180 [2024-11-24 00:10:47,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:47,471 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 488 transitions. [2024-11-24 00:10:47,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:47,472 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 488 transitions. [2024-11-24 00:10:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 00:10:47,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:47,476 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:47,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:10:47,476 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:47,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:47,477 INFO L85 PathProgramCache]: Analyzing trace with hash 898125811, now seen corresponding path program 1 times [2024-11-24 00:10:47,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:47,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285388707] [2024-11-24 00:10:47,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:47,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:47,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:47,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:47,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285388707] [2024-11-24 00:10:47,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285388707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:47,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:47,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:10:47,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817158418] [2024-11-24 00:10:47,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:47,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:47,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:47,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:47,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:47,808 INFO L87 Difference]: Start difference. First operand 341 states and 488 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:48,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:48,298 INFO L93 Difference]: Finished difference Result 927 states and 1336 transitions. [2024-11-24 00:10:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:48,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 00:10:48,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:48,303 INFO L225 Difference]: With dead ends: 927 [2024-11-24 00:10:48,306 INFO L226 Difference]: Without dead ends: 589 [2024-11-24 00:10:48,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:10:48,308 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 158 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:48,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 837 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:10:48,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-24 00:10:48,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 339. [2024-11-24 00:10:48,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 311 states have (on average 1.3762057877813505) internal successors, (428), 312 states have internal predecessors, (428), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 478 transitions. [2024-11-24 00:10:48,361 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 478 transitions. Word has length 180 [2024-11-24 00:10:48,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:48,362 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 478 transitions. [2024-11-24 00:10:48,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:48,366 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 478 transitions. [2024-11-24 00:10:48,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 00:10:48,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:48,369 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:48,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:10:48,369 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:48,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:48,373 INFO L85 PathProgramCache]: Analyzing trace with hash 256766812, now seen corresponding path program 1 times [2024-11-24 00:10:48,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:48,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220001186] [2024-11-24 00:10:48,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:48,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:48,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:48,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:48,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220001186] [2024-11-24 00:10:48,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220001186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:48,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:48,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:10:48,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045636798] [2024-11-24 00:10:48,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:48,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:10:48,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:48,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:10:48,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:10:48,527 INFO L87 Difference]: Start difference. First operand 339 states and 478 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:48,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:48,563 INFO L93 Difference]: Finished difference Result 641 states and 902 transitions. [2024-11-24 00:10:48,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:10:48,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 180 [2024-11-24 00:10:48,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:48,567 INFO L225 Difference]: With dead ends: 641 [2024-11-24 00:10:48,567 INFO L226 Difference]: Without dead ends: 305 [2024-11-24 00:10:48,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:10:48,569 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 1 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:48,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 534 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:10:48,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-24 00:10:48,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-24 00:10:48,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 277 states have (on average 1.3537906137184115) internal successors, (375), 278 states have internal predecessors, (375), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:48,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 425 transitions. [2024-11-24 00:10:48,593 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 425 transitions. Word has length 180 [2024-11-24 00:10:48,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:48,593 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 425 transitions. [2024-11-24 00:10:48,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:48,594 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 425 transitions. [2024-11-24 00:10:48,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 00:10:48,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:48,596 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:48,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:10:48,597 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:48,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:48,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1900634344, now seen corresponding path program 1 times [2024-11-24 00:10:48,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:48,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337405856] [2024-11-24 00:10:48,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:48,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:48,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:48,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:48,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337405856] [2024-11-24 00:10:48,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337405856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:48,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:48,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:10:48,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190273340] [2024-11-24 00:10:48,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:48,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:48,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:48,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:48,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:48,771 INFO L87 Difference]: Start difference. First operand 305 states and 425 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:48,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:48,814 INFO L93 Difference]: Finished difference Result 613 states and 855 transitions. [2024-11-24 00:10:48,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:48,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-24 00:10:48,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:48,817 INFO L225 Difference]: With dead ends: 613 [2024-11-24 00:10:48,818 INFO L226 Difference]: Without dead ends: 311 [2024-11-24 00:10:48,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:48,819 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 1 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:48,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 707 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:10:48,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-24 00:10:48,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-11-24 00:10:48,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 283 states have (on average 1.3462897526501767) internal successors, (381), 284 states have internal predecessors, (381), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:48,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 431 transitions. [2024-11-24 00:10:48,840 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 431 transitions. Word has length 181 [2024-11-24 00:10:48,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:48,841 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 431 transitions. [2024-11-24 00:10:48,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:48,841 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 431 transitions. [2024-11-24 00:10:48,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 00:10:48,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:48,844 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:48,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:10:48,844 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:48,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:48,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1973020902, now seen corresponding path program 1 times [2024-11-24 00:10:48,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:48,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591211691] [2024-11-24 00:10:48,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:48,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:49,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:49,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:49,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591211691] [2024-11-24 00:10:49,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591211691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:49,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:49,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:10:49,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049432482] [2024-11-24 00:10:49,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:49,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:10:49,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:49,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:10:49,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:10:49,549 INFO L87 Difference]: Start difference. First operand 311 states and 431 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:50,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:50,248 INFO L93 Difference]: Finished difference Result 789 states and 1094 transitions. [2024-11-24 00:10:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:10:50,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-24 00:10:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:50,252 INFO L225 Difference]: With dead ends: 789 [2024-11-24 00:10:50,252 INFO L226 Difference]: Without dead ends: 481 [2024-11-24 00:10:50,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:50,255 INFO L435 NwaCegarLoop]: 255 mSDtfsCounter, 309 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:50,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 758 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:10:50,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-24 00:10:50,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 308. [2024-11-24 00:10:50,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 280 states have (on average 1.3464285714285715) internal successors, (377), 281 states have internal predecessors, (377), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:50,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 427 transitions. [2024-11-24 00:10:50,286 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 427 transitions. Word has length 181 [2024-11-24 00:10:50,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:50,287 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 427 transitions. [2024-11-24 00:10:50,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:50,288 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 427 transitions. [2024-11-24 00:10:50,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 00:10:50,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:50,291 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:50,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:10:50,291 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:50,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:50,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1654071006, now seen corresponding path program 1 times [2024-11-24 00:10:50,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:50,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6612640] [2024-11-24 00:10:50,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:50,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:50,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:50,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6612640] [2024-11-24 00:10:50,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6612640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:50,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:50,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:10:50,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463697034] [2024-11-24 00:10:50,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:50,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:10:50,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:50,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:10:50,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:10:50,982 INFO L87 Difference]: Start difference. First operand 308 states and 427 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:51,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:51,517 INFO L93 Difference]: Finished difference Result 737 states and 1023 transitions. [2024-11-24 00:10:51,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:10:51,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-24 00:10:51,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:51,522 INFO L225 Difference]: With dead ends: 737 [2024-11-24 00:10:51,522 INFO L226 Difference]: Without dead ends: 432 [2024-11-24 00:10:51,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:51,525 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 306 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:51,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 489 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:10:51,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-24 00:10:51,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 308. [2024-11-24 00:10:51,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 280 states have (on average 1.3428571428571427) internal successors, (376), 281 states have internal predecessors, (376), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:51,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 426 transitions. [2024-11-24 00:10:51,556 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 426 transitions. Word has length 181 [2024-11-24 00:10:51,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:51,557 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 426 transitions. [2024-11-24 00:10:51,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:51,557 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 426 transitions. [2024-11-24 00:10:51,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 00:10:51,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:51,561 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:51,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:10:51,561 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:51,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:51,563 INFO L85 PathProgramCache]: Analyzing trace with hash 633002652, now seen corresponding path program 1 times [2024-11-24 00:10:51,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:51,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000037010] [2024-11-24 00:10:51,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:51,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 24 proven. 42 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:10:52,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:52,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000037010] [2024-11-24 00:10:52,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000037010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:52,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123082584] [2024-11-24 00:10:52,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:52,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:52,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:52,706 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:52,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:10:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:53,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 00:10:53,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:53,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-24 00:10:53,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-24 00:10:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:10:53,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:10:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:53,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123082584] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:53,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:10:53,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 10] total 17 [2024-11-24 00:10:53,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508294566] [2024-11-24 00:10:53,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:53,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:10:53,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:53,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:10:53,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:10:53,495 INFO L87 Difference]: Start difference. First operand 308 states and 426 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:53,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:53,763 INFO L93 Difference]: Finished difference Result 711 states and 989 transitions. [2024-11-24 00:10:53,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:10:53,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 181 [2024-11-24 00:10:53,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:53,767 INFO L225 Difference]: With dead ends: 711 [2024-11-24 00:10:53,767 INFO L226 Difference]: Without dead ends: 406 [2024-11-24 00:10:53,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:10:53,771 INFO L435 NwaCegarLoop]: 310 mSDtfsCounter, 138 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:53,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1371 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:10:53,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-24 00:10:53,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 307. [2024-11-24 00:10:53,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 279 states have (on average 1.3440860215053763) internal successors, (375), 280 states have internal predecessors, (375), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:53,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 425 transitions. [2024-11-24 00:10:53,804 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 425 transitions. Word has length 181 [2024-11-24 00:10:53,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:53,805 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 425 transitions. [2024-11-24 00:10:53,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:53,805 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 425 transitions. [2024-11-24 00:10:53,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-24 00:10:53,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:53,808 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:53,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 00:10:54,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 00:10:54,013 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:54,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:54,014 INFO L85 PathProgramCache]: Analyzing trace with hash 2112639665, now seen corresponding path program 1 times [2024-11-24 00:10:54,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:54,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460382169] [2024-11-24 00:10:54,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:54,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:54,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:54,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460382169] [2024-11-24 00:10:54,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460382169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:54,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:54,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:10:54,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608705322] [2024-11-24 00:10:54,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:54,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:10:54,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:54,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:10:54,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:10:54,141 INFO L87 Difference]: Start difference. First operand 307 states and 425 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:54,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:54,176 INFO L93 Difference]: Finished difference Result 612 states and 849 transitions. [2024-11-24 00:10:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:10:54,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 182 [2024-11-24 00:10:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:54,179 INFO L225 Difference]: With dead ends: 612 [2024-11-24 00:10:54,179 INFO L226 Difference]: Without dead ends: 308 [2024-11-24 00:10:54,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:10:54,181 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 360 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 [2024-11-24 00:10:54,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 360 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:10:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-24 00:10:54,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2024-11-24 00:10:54,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 280 states have (on average 1.3428571428571427) internal successors, (376), 281 states have internal predecessors, (376), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-24 00:10:54,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 426 transitions. [2024-11-24 00:10:54,211 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 426 transitions. Word has length 182 [2024-11-24 00:10:54,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:54,212 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 426 transitions. [2024-11-24 00:10:54,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:54,212 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 426 transitions. [2024-11-24 00:10:54,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-24 00:10:54,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:54,216 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:54,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:10:54,216 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:54,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:54,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1083280367, now seen corresponding path program 1 times [2024-11-24 00:10:54,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:54,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625364996] [2024-11-24 00:10:54,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:54,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:54,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:54,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:54,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625364996] [2024-11-24 00:10:54,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625364996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:54,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:54,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:10:54,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978140709] [2024-11-24 00:10:54,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:54,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:10:54,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:54,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:10:54,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:10:54,634 INFO L87 Difference]: Start difference. First operand 308 states and 426 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:10:55,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:55,041 INFO L93 Difference]: Finished difference Result 826 states and 1140 transitions. [2024-11-24 00:10:55,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:10:55,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 182 [2024-11-24 00:10:55,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:55,046 INFO L225 Difference]: With dead ends: 826 [2024-11-24 00:10:55,046 INFO L226 Difference]: Without dead ends: 521 [2024-11-24 00:10:55,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:10:55,049 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 160 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:55,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1139 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:10:55,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-24 00:10:55,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 518. [2024-11-24 00:10:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 468 states have (on average 1.3333333333333333) internal successors, (624), 471 states have internal predecessors, (624), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:10:55,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 714 transitions. [2024-11-24 00:10:55,103 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 714 transitions. Word has length 182 [2024-11-24 00:10:55,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:55,104 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 714 transitions. [2024-11-24 00:10:55,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:10:55,104 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 714 transitions. [2024-11-24 00:10:55,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-24 00:10:55,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:55,107 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:55,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:10:55,108 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:55,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:55,108 INFO L85 PathProgramCache]: Analyzing trace with hash 688913581, now seen corresponding path program 1 times [2024-11-24 00:10:55,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:55,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863857140] [2024-11-24 00:10:55,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:55,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:55,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:55,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863857140] [2024-11-24 00:10:55,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863857140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:55,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:55,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:10:55,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580255461] [2024-11-24 00:10:55,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:55,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:55,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:55,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:55,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:55,511 INFO L87 Difference]: Start difference. First operand 518 states and 714 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:10:55,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:55,653 INFO L93 Difference]: Finished difference Result 955 states and 1315 transitions. [2024-11-24 00:10:55,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:55,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 182 [2024-11-24 00:10:55,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:55,660 INFO L225 Difference]: With dead ends: 955 [2024-11-24 00:10:55,660 INFO L226 Difference]: Without dead ends: 440 [2024-11-24 00:10:55,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:55,662 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:55,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 656 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:10:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-24 00:10:55,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2024-11-24 00:10:55,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 390 states have (on average 1.3153846153846154) internal successors, (513), 393 states have internal predecessors, (513), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:10:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 603 transitions. [2024-11-24 00:10:55,712 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 603 transitions. Word has length 182 [2024-11-24 00:10:55,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:55,713 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 603 transitions. [2024-11-24 00:10:55,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:10:55,715 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 603 transitions. [2024-11-24 00:10:55,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-24 00:10:55,718 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:55,718 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:55,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:10:55,719 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:55,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:55,719 INFO L85 PathProgramCache]: Analyzing trace with hash -621272487, now seen corresponding path program 1 times [2024-11-24 00:10:55,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:55,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732463752] [2024-11-24 00:10:55,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:55,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:56,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:56,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732463752] [2024-11-24 00:10:56,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732463752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:56,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:56,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:10:56,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148480063] [2024-11-24 00:10:56,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:56,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:10:56,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:56,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:10:56,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:10:56,418 INFO L87 Difference]: Start difference. First operand 440 states and 603 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:56,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:56,720 INFO L93 Difference]: Finished difference Result 947 states and 1300 transitions. [2024-11-24 00:10:56,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:10:56,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 183 [2024-11-24 00:10:56,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:56,725 INFO L225 Difference]: With dead ends: 947 [2024-11-24 00:10:56,725 INFO L226 Difference]: Without dead ends: 510 [2024-11-24 00:10:56,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:10:56,728 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 163 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:56,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1460 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:56,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-24 00:10:56,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 452. [2024-11-24 00:10:56,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 402 states have (on average 1.3059701492537314) internal successors, (525), 405 states have internal predecessors, (525), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:10:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 615 transitions. [2024-11-24 00:10:56,803 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 615 transitions. Word has length 183 [2024-11-24 00:10:56,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:56,803 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 615 transitions. [2024-11-24 00:10:56,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:56,804 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 615 transitions. [2024-11-24 00:10:56,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-24 00:10:56,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:56,808 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:56,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:10:56,808 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:56,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:56,809 INFO L85 PathProgramCache]: Analyzing trace with hash -67911810, now seen corresponding path program 1 times [2024-11-24 00:10:56,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:56,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657846128] [2024-11-24 00:10:56,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:56,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:56,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:56,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:56,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657846128] [2024-11-24 00:10:56,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657846128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:56,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:56,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:10:56,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030432449] [2024-11-24 00:10:56,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:56,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:10:56,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:56,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:10:56,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:10:56,942 INFO L87 Difference]: Start difference. First operand 452 states and 615 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:57,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:57,001 INFO L93 Difference]: Finished difference Result 905 states and 1235 transitions. [2024-11-24 00:10:57,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:10:57,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-11-24 00:10:57,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:57,006 INFO L225 Difference]: With dead ends: 905 [2024-11-24 00:10:57,006 INFO L226 Difference]: Without dead ends: 456 [2024-11-24 00:10:57,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:10:57,009 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 350 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 [2024-11-24 00:10:57,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 350 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:10:57,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-24 00:10:57,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2024-11-24 00:10:57,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 406 states have (on average 1.3029556650246306) internal successors, (529), 409 states have internal predecessors, (529), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:10:57,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 619 transitions. [2024-11-24 00:10:57,060 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 619 transitions. Word has length 185 [2024-11-24 00:10:57,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:57,062 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 619 transitions. [2024-11-24 00:10:57,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:57,063 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 619 transitions. [2024-11-24 00:10:57,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-24 00:10:57,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:57,065 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:57,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:10:57,066 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:57,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:57,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1656259712, now seen corresponding path program 1 times [2024-11-24 00:10:57,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:57,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324856833] [2024-11-24 00:10:57,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:57,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:57,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:57,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324856833] [2024-11-24 00:10:57,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324856833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:57,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:57,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:10:57,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102843680] [2024-11-24 00:10:57,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:57,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:57,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:57,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:57,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:57,413 INFO L87 Difference]: Start difference. First operand 456 states and 619 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:57,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:57,711 INFO L93 Difference]: Finished difference Result 1136 states and 1549 transitions. [2024-11-24 00:10:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:57,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-11-24 00:10:57,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:57,717 INFO L225 Difference]: With dead ends: 1136 [2024-11-24 00:10:57,717 INFO L226 Difference]: Without dead ends: 683 [2024-11-24 00:10:57,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:10:57,720 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 108 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:57,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 829 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:10:57,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-24 00:10:57,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 444. [2024-11-24 00:10:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 394 states have (on average 1.2918781725888324) internal successors, (509), 397 states have internal predecessors, (509), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:10:57,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 599 transitions. [2024-11-24 00:10:57,774 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 599 transitions. Word has length 185 [2024-11-24 00:10:57,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:57,775 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 599 transitions. [2024-11-24 00:10:57,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:57,775 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 599 transitions. [2024-11-24 00:10:57,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-24 00:10:57,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:57,780 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:57,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:10:57,780 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:57,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:57,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1358843906, now seen corresponding path program 1 times [2024-11-24 00:10:57,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:57,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524238342] [2024-11-24 00:10:57,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:57,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:58,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:58,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524238342] [2024-11-24 00:10:58,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524238342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:58,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:58,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:10:58,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773429321] [2024-11-24 00:10:58,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:58,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:10:58,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:58,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:10:58,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:10:58,122 INFO L87 Difference]: Start difference. First operand 444 states and 599 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:58,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:58,225 INFO L93 Difference]: Finished difference Result 875 states and 1183 transitions. [2024-11-24 00:10:58,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:10:58,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 185 [2024-11-24 00:10:58,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:58,230 INFO L225 Difference]: With dead ends: 875 [2024-11-24 00:10:58,230 INFO L226 Difference]: Without dead ends: 434 [2024-11-24 00:10:58,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:10:58,233 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:58,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 490 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:10:58,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-24 00:10:58,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 432. [2024-11-24 00:10:58,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 382 states have (on average 1.2905759162303665) internal successors, (493), 385 states have internal predecessors, (493), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:10:58,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 583 transitions. [2024-11-24 00:10:58,282 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 583 transitions. Word has length 185 [2024-11-24 00:10:58,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:58,282 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 583 transitions. [2024-11-24 00:10:58,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:58,283 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 583 transitions. [2024-11-24 00:10:58,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-24 00:10:58,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:58,285 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:58,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:10:58,286 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:58,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:58,286 INFO L85 PathProgramCache]: Analyzing trace with hash -730884783, now seen corresponding path program 1 times [2024-11-24 00:10:58,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:58,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719530333] [2024-11-24 00:10:58,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:58,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:59,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:10:59,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:59,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719530333] [2024-11-24 00:10:59,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719530333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:59,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:59,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:10:59,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376188015] [2024-11-24 00:10:59,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:59,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:10:59,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:59,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:10:59,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:10:59,337 INFO L87 Difference]: Start difference. First operand 432 states and 583 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:10:59,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:59,938 INFO L93 Difference]: Finished difference Result 1098 states and 1479 transitions. [2024-11-24 00:10:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:10:59,939 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 187 [2024-11-24 00:10:59,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:59,944 INFO L225 Difference]: With dead ends: 1098 [2024-11-24 00:10:59,945 INFO L226 Difference]: Without dead ends: 669 [2024-11-24 00:10:59,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:10:59,947 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 153 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:59,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1202 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:10:59,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-24 00:11:00,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 496. [2024-11-24 00:11:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 446 states have (on average 1.2713004484304933) internal successors, (567), 449 states have internal predecessors, (567), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:11:00,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 657 transitions. [2024-11-24 00:11:00,019 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 657 transitions. Word has length 187 [2024-11-24 00:11:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:00,020 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 657 transitions. [2024-11-24 00:11:00,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:11:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 657 transitions. [2024-11-24 00:11:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-24 00:11:00,023 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:00,024 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:00,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:11:00,024 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:00,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:00,025 INFO L85 PathProgramCache]: Analyzing trace with hash -472719345, now seen corresponding path program 1 times [2024-11-24 00:11:00,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:00,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482389444] [2024-11-24 00:11:00,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:00,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:00,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:00,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:00,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482389444] [2024-11-24 00:11:00,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482389444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:00,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:00,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:11:00,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061373667] [2024-11-24 00:11:00,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:00,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:11:00,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:00,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:11:00,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:11:00,232 INFO L87 Difference]: Start difference. First operand 496 states and 657 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:11:00,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:00,305 INFO L93 Difference]: Finished difference Result 1003 states and 1331 transitions. [2024-11-24 00:11:00,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:11:00,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 187 [2024-11-24 00:11:00,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:00,310 INFO L225 Difference]: With dead ends: 1003 [2024-11-24 00:11:00,310 INFO L226 Difference]: Without dead ends: 510 [2024-11-24 00:11:00,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:11:00,312 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:00,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 502 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:00,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-24 00:11:00,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 508. [2024-11-24 00:11:00,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 458 states have (on average 1.2641921397379912) internal successors, (579), 461 states have internal predecessors, (579), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:11:00,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 669 transitions. [2024-11-24 00:11:00,363 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 669 transitions. Word has length 187 [2024-11-24 00:11:00,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:00,363 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 669 transitions. [2024-11-24 00:11:00,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:11:00,364 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 669 transitions. [2024-11-24 00:11:00,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-24 00:11:00,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:00,366 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:00,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:11:00,366 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:00,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:00,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1725337417, now seen corresponding path program 1 times [2024-11-24 00:11:00,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:00,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502973201] [2024-11-24 00:11:00,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:00,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:01,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:01,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:01,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502973201] [2024-11-24 00:11:01,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502973201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:01,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:01,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:01,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689358827] [2024-11-24 00:11:01,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:01,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:11:01,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:01,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:11:01,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:11:01,903 INFO L87 Difference]: Start difference. First operand 508 states and 669 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:02,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:02,239 INFO L93 Difference]: Finished difference Result 1017 states and 1336 transitions. [2024-11-24 00:11:02,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:11:02,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 188 [2024-11-24 00:11:02,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:02,244 INFO L225 Difference]: With dead ends: 1017 [2024-11-24 00:11:02,244 INFO L226 Difference]: Without dead ends: 512 [2024-11-24 00:11:02,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:02,248 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 143 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:02,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 737 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:11:02,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-24 00:11:02,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 430. [2024-11-24 00:11:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 384 states have (on average 1.2421875) internal successors, (477), 385 states have internal predecessors, (477), 41 states have call successors, (41), 4 states have call predecessors, (41), 4 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 00:11:02,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 559 transitions. [2024-11-24 00:11:02,294 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 559 transitions. Word has length 188 [2024-11-24 00:11:02,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:02,295 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 559 transitions. [2024-11-24 00:11:02,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:02,297 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 559 transitions. [2024-11-24 00:11:02,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-24 00:11:02,298 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:02,299 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:02,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:11:02,299 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:02,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:02,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1831826601, now seen corresponding path program 1 times [2024-11-24 00:11:02,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:02,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892573245] [2024-11-24 00:11:02,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:02,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:02,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:02,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:02,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892573245] [2024-11-24 00:11:02,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892573245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:02,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:02,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:11:02,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946366751] [2024-11-24 00:11:02,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:02,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:11:02,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:02,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:11:02,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:11:02,507 INFO L87 Difference]: Start difference. First operand 430 states and 559 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:11:02,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:02,580 INFO L93 Difference]: Finished difference Result 871 states and 1133 transitions. [2024-11-24 00:11:02,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:11:02,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 189 [2024-11-24 00:11:02,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:02,584 INFO L225 Difference]: With dead ends: 871 [2024-11-24 00:11:02,585 INFO L226 Difference]: Without dead ends: 444 [2024-11-24 00:11:02,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:11:02,588 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 1 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:02,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 664 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:02,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-11-24 00:11:02,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 438. [2024-11-24 00:11:02,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 392 states have (on average 1.2372448979591837) internal successors, (485), 393 states have internal predecessors, (485), 41 states have call successors, (41), 4 states have call predecessors, (41), 4 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 00:11:02,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 567 transitions. [2024-11-24 00:11:02,630 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 567 transitions. Word has length 189 [2024-11-24 00:11:02,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:02,631 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 567 transitions. [2024-11-24 00:11:02,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:11:02,631 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 567 transitions. [2024-11-24 00:11:02,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-24 00:11:02,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:02,633 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:02,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:11:02,635 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:02,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:02,636 INFO L85 PathProgramCache]: Analyzing trace with hash 551962923, now seen corresponding path program 1 times [2024-11-24 00:11:02,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:02,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846136080] [2024-11-24 00:11:02,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:02,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:04,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:04,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:04,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846136080] [2024-11-24 00:11:04,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846136080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:04,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:04,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:04,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279369580] [2024-11-24 00:11:04,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:04,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:11:04,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:04,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:11:04,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:11:04,106 INFO L87 Difference]: Start difference. First operand 438 states and 567 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:04,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:04,505 INFO L93 Difference]: Finished difference Result 945 states and 1222 transitions. [2024-11-24 00:11:04,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:11:04,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 189 [2024-11-24 00:11:04,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:04,510 INFO L225 Difference]: With dead ends: 945 [2024-11-24 00:11:04,510 INFO L226 Difference]: Without dead ends: 510 [2024-11-24 00:11:04,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:04,512 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 62 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:04,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 753 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:11:04,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-24 00:11:04,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 438. [2024-11-24 00:11:04,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 392 states have (on average 1.2321428571428572) internal successors, (483), 393 states have internal predecessors, (483), 41 states have call successors, (41), 4 states have call predecessors, (41), 4 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 00:11:04,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 565 transitions. [2024-11-24 00:11:04,557 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 565 transitions. Word has length 189 [2024-11-24 00:11:04,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:04,558 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 565 transitions. [2024-11-24 00:11:04,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:04,559 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 565 transitions. [2024-11-24 00:11:04,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 00:11:04,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:04,561 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:04,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:11:04,563 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:04,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:04,564 INFO L85 PathProgramCache]: Analyzing trace with hash 346704995, now seen corresponding path program 1 times [2024-11-24 00:11:04,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:04,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737554270] [2024-11-24 00:11:04,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:04,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:06,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:06,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737554270] [2024-11-24 00:11:06,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737554270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:06,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:06,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:06,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190144487] [2024-11-24 00:11:06,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:06,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:11:06,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:06,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:11:06,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:11:06,108 INFO L87 Difference]: Start difference. First operand 438 states and 565 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:06,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:06,554 INFO L93 Difference]: Finished difference Result 1037 states and 1332 transitions. [2024-11-24 00:11:06,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:11:06,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 00:11:06,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:06,559 INFO L225 Difference]: With dead ends: 1037 [2024-11-24 00:11:06,559 INFO L226 Difference]: Without dead ends: 602 [2024-11-24 00:11:06,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:06,561 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 129 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:06,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 776 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:11:06,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-24 00:11:06,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 598. [2024-11-24 00:11:06,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 540 states have (on average 1.2351851851851852) internal successors, (667), 543 states have internal predecessors, (667), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 46 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-24 00:11:06,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 765 transitions. [2024-11-24 00:11:06,626 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 765 transitions. Word has length 190 [2024-11-24 00:11:06,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:06,627 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 765 transitions. [2024-11-24 00:11:06,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:06,627 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 765 transitions. [2024-11-24 00:11:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 00:11:06,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:06,630 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:06,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:11:06,630 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:06,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:06,631 INFO L85 PathProgramCache]: Analyzing trace with hash 594851489, now seen corresponding path program 1 times [2024-11-24 00:11:06,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:06,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757586451] [2024-11-24 00:11:06,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:06,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:08,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:08,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:08,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757586451] [2024-11-24 00:11:08,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757586451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:08,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:08,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:11:08,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067210888] [2024-11-24 00:11:08,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:08,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:11:08,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:08,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:11:08,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:11:08,195 INFO L87 Difference]: Start difference. First operand 598 states and 765 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:08,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:08,960 INFO L93 Difference]: Finished difference Result 1291 states and 1650 transitions. [2024-11-24 00:11:08,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:11:08,961 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 00:11:08,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:08,966 INFO L225 Difference]: With dead ends: 1291 [2024-11-24 00:11:08,966 INFO L226 Difference]: Without dead ends: 696 [2024-11-24 00:11:08,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:11:08,969 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 74 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:08,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1588 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:11:08,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-24 00:11:09,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 684. [2024-11-24 00:11:09,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 610 states have (on average 1.2344262295081967) internal successors, (753), 615 states have internal predecessors, (753), 61 states have call successors, (61), 12 states have call predecessors, (61), 12 states have return successors, (61), 56 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:11:09,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 875 transitions. [2024-11-24 00:11:09,053 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 875 transitions. Word has length 190 [2024-11-24 00:11:09,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:09,054 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 875 transitions. [2024-11-24 00:11:09,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:09,054 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 875 transitions. [2024-11-24 00:11:09,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 00:11:09,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:09,057 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:09,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 00:11:09,058 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:09,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:09,058 INFO L85 PathProgramCache]: Analyzing trace with hash -228817437, now seen corresponding path program 1 times [2024-11-24 00:11:09,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:09,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988856116] [2024-11-24 00:11:09,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:09,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:10,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:10,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:10,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988856116] [2024-11-24 00:11:10,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988856116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:10,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:10,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:10,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46862349] [2024-11-24 00:11:10,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:10,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:11:10,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:10,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:11:10,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:11:10,298 INFO L87 Difference]: Start difference. First operand 684 states and 875 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:10,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:10,721 INFO L93 Difference]: Finished difference Result 1445 states and 1846 transitions. [2024-11-24 00:11:10,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:11:10,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 00:11:10,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:10,727 INFO L225 Difference]: With dead ends: 1445 [2024-11-24 00:11:10,728 INFO L226 Difference]: Without dead ends: 764 [2024-11-24 00:11:10,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:10,731 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 143 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:10,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 663 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:11:10,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-24 00:11:10,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 686. [2024-11-24 00:11:10,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 610 states have (on average 1.2278688524590164) internal successors, (749), 615 states have internal predecessors, (749), 61 states have call successors, (61), 14 states have call predecessors, (61), 14 states have return successors, (61), 56 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:11:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 871 transitions. [2024-11-24 00:11:10,825 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 871 transitions. Word has length 190 [2024-11-24 00:11:10,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:10,826 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 871 transitions. [2024-11-24 00:11:10,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:10,827 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 871 transitions. [2024-11-24 00:11:10,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 00:11:10,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:10,829 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:10,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:11:10,830 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:10,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:10,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1508681115, now seen corresponding path program 1 times [2024-11-24 00:11:10,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:10,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815329021] [2024-11-24 00:11:10,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:10,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:12,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:12,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815329021] [2024-11-24 00:11:12,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815329021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:12,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:12,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:11:12,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887558788] [2024-11-24 00:11:12,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:12,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:11:12,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:12,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:11:12,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:11:12,331 INFO L87 Difference]: Start difference. First operand 686 states and 871 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:13,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:13,026 INFO L93 Difference]: Finished difference Result 1463 states and 1856 transitions. [2024-11-24 00:11:13,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:11:13,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 00:11:13,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:13,033 INFO L225 Difference]: With dead ends: 1463 [2024-11-24 00:11:13,034 INFO L226 Difference]: Without dead ends: 780 [2024-11-24 00:11:13,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:11:13,037 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 78 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:13,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1355 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:11:13,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-24 00:11:13,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 686. [2024-11-24 00:11:13,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 610 states have (on average 1.2245901639344263) internal successors, (747), 615 states have internal predecessors, (747), 61 states have call successors, (61), 14 states have call predecessors, (61), 14 states have return successors, (61), 56 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:11:13,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 869 transitions. [2024-11-24 00:11:13,126 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 869 transitions. Word has length 190 [2024-11-24 00:11:13,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:13,127 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 869 transitions. [2024-11-24 00:11:13,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:13,127 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 869 transitions. [2024-11-24 00:11:13,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 00:11:13,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:13,130 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:13,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 00:11:13,130 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:13,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:13,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1250515677, now seen corresponding path program 1 times [2024-11-24 00:11:13,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:13,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789819067] [2024-11-24 00:11:13,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:13,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:15,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:15,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:15,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789819067] [2024-11-24 00:11:15,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789819067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:15,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:15,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:11:15,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979759979] [2024-11-24 00:11:15,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:15,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:11:15,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:15,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:11:15,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:11:15,731 INFO L87 Difference]: Start difference. First operand 686 states and 869 transitions. Second operand has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:16,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:16,678 INFO L93 Difference]: Finished difference Result 1493 states and 1897 transitions. [2024-11-24 00:11:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:11:16,679 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 00:11:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:16,685 INFO L225 Difference]: With dead ends: 1493 [2024-11-24 00:11:16,685 INFO L226 Difference]: Without dead ends: 810 [2024-11-24 00:11:16,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:11:16,688 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 113 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:16,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1811 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:11:16,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-24 00:11:16,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 712. [2024-11-24 00:11:16,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 636 states have (on average 1.2185534591194969) internal successors, (775), 641 states have internal predecessors, (775), 61 states have call successors, (61), 14 states have call predecessors, (61), 14 states have return successors, (61), 56 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:11:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 897 transitions. [2024-11-24 00:11:16,779 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 897 transitions. Word has length 190 [2024-11-24 00:11:16,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:16,780 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 897 transitions. [2024-11-24 00:11:16,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:16,780 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 897 transitions. [2024-11-24 00:11:16,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 00:11:16,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:16,784 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:16,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 00:11:16,784 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:16,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:16,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1619440157, now seen corresponding path program 1 times [2024-11-24 00:11:16,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:16,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555781668] [2024-11-24 00:11:16,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:16,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:19,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:19,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:19,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555781668] [2024-11-24 00:11:19,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555781668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:19,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:19,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:11:19,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348610762] [2024-11-24 00:11:19,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:19,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:11:19,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:19,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:11:19,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:11:19,063 INFO L87 Difference]: Start difference. First operand 712 states and 897 transitions. Second operand has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:19,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:19,698 INFO L93 Difference]: Finished difference Result 1497 states and 1888 transitions. [2024-11-24 00:11:19,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:11:19,699 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2024-11-24 00:11:19,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:19,704 INFO L225 Difference]: With dead ends: 1497 [2024-11-24 00:11:19,704 INFO L226 Difference]: Without dead ends: 788 [2024-11-24 00:11:19,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:11:19,707 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 154 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:19,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1230 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:11:19,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2024-11-24 00:11:19,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 710. [2024-11-24 00:11:19,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 634 states have (on average 1.2192429022082019) internal successors, (773), 639 states have internal predecessors, (773), 61 states have call successors, (61), 14 states have call predecessors, (61), 14 states have return successors, (61), 56 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:11:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 895 transitions. [2024-11-24 00:11:19,793 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 895 transitions. Word has length 190 [2024-11-24 00:11:19,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:19,794 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 895 transitions. [2024-11-24 00:11:19,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 895 transitions. [2024-11-24 00:11:19,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 00:11:19,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:19,797 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:19,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 00:11:19,797 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:19,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:19,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2017948219, now seen corresponding path program 1 times [2024-11-24 00:11:19,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:19,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839508625] [2024-11-24 00:11:19,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:19,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:20,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:20,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:20,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839508625] [2024-11-24 00:11:20,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839508625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:20,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:20,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:11:20,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225229176] [2024-11-24 00:11:20,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:20,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:11:20,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:20,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:11:20,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:20,857 INFO L87 Difference]: Start difference. First operand 710 states and 895 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:21,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:21,664 INFO L93 Difference]: Finished difference Result 1906 states and 2420 transitions. [2024-11-24 00:11:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:11:21,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2024-11-24 00:11:21,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:21,675 INFO L225 Difference]: With dead ends: 1906 [2024-11-24 00:11:21,675 INFO L226 Difference]: Without dead ends: 1199 [2024-11-24 00:11:21,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:11:21,678 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 267 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:21,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 1343 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:11:21,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2024-11-24 00:11:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1080. [2024-11-24 00:11:21,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 939 states have (on average 1.194888178913738) internal successors, (1122), 948 states have internal predecessors, (1122), 114 states have call successors, (114), 26 states have call predecessors, (114), 26 states have return successors, (114), 105 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-24 00:11:21,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1350 transitions. [2024-11-24 00:11:21,805 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1350 transitions. Word has length 191 [2024-11-24 00:11:21,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:21,806 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1350 transitions. [2024-11-24 00:11:21,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:21,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1350 transitions. [2024-11-24 00:11:21,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 00:11:21,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:21,809 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:21,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 00:11:21,809 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:21,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:21,810 INFO L85 PathProgramCache]: Analyzing trace with hash -196934681, now seen corresponding path program 1 times [2024-11-24 00:11:21,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:21,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324897961] [2024-11-24 00:11:21,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:21,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:21,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:21,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:21,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324897961] [2024-11-24 00:11:21,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324897961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:21,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:21,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:11:21,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685975793] [2024-11-24 00:11:21,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:21,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:11:21,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:21,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:11:21,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:11:21,941 INFO L87 Difference]: Start difference. First operand 1080 states and 1350 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:11:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:22,074 INFO L93 Difference]: Finished difference Result 2187 states and 2737 transitions. [2024-11-24 00:11:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:11:22,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-11-24 00:11:22,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:22,080 INFO L225 Difference]: With dead ends: 2187 [2024-11-24 00:11:22,080 INFO L226 Difference]: Without dead ends: 1110 [2024-11-24 00:11:22,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:11:22,083 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:22,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 503 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:22,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2024-11-24 00:11:22,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1100. [2024-11-24 00:11:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 959 states have (on average 1.1908237747653807) internal successors, (1142), 968 states have internal predecessors, (1142), 114 states have call successors, (114), 26 states have call predecessors, (114), 26 states have return successors, (114), 105 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-24 00:11:22,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1370 transitions. [2024-11-24 00:11:22,218 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1370 transitions. Word has length 191 [2024-11-24 00:11:22,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:22,219 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1370 transitions. [2024-11-24 00:11:22,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:11:22,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1370 transitions. [2024-11-24 00:11:22,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 00:11:22,222 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:22,222 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:22,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 00:11:22,223 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:22,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:22,223 INFO L85 PathProgramCache]: Analyzing trace with hash -589961691, now seen corresponding path program 1 times [2024-11-24 00:11:22,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:22,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59644008] [2024-11-24 00:11:22,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:22,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:23,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:23,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59644008] [2024-11-24 00:11:23,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59644008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:23,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:23,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:23,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935234212] [2024-11-24 00:11:23,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:23,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:11:23,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:23,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:11:23,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:11:23,777 INFO L87 Difference]: Start difference. First operand 1100 states and 1370 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:24,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:24,400 INFO L93 Difference]: Finished difference Result 3151 states and 3904 transitions. [2024-11-24 00:11:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:11:24,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2024-11-24 00:11:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:24,410 INFO L225 Difference]: With dead ends: 3151 [2024-11-24 00:11:24,410 INFO L226 Difference]: Without dead ends: 2054 [2024-11-24 00:11:24,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:24,413 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 143 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:24,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 599 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:11:24,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2024-11-24 00:11:24,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 2048. [2024-11-24 00:11:24,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2048 states, 1809 states have (on average 1.1885019347705914) internal successors, (2150), 1828 states have internal predecessors, (2150), 186 states have call successors, (186), 52 states have call predecessors, (186), 52 states have return successors, (186), 167 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-24 00:11:24,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 2522 transitions. [2024-11-24 00:11:24,809 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 2522 transitions. Word has length 191 [2024-11-24 00:11:24,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:24,810 INFO L471 AbstractCegarLoop]: Abstraction has 2048 states and 2522 transitions. [2024-11-24 00:11:24,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:24,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 2522 transitions. [2024-11-24 00:11:24,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 00:11:24,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:24,816 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:24,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 00:11:24,816 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:24,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:24,817 INFO L85 PathProgramCache]: Analyzing trace with hash -455100119, now seen corresponding path program 1 times [2024-11-24 00:11:24,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:24,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169948274] [2024-11-24 00:11:24,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:24,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:26,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:26,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169948274] [2024-11-24 00:11:26,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169948274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:26,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:26,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:11:26,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497885646] [2024-11-24 00:11:26,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:26,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:11:26,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:26,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:11:26,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:11:26,771 INFO L87 Difference]: Start difference. First operand 2048 states and 2522 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:28,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:28,023 INFO L93 Difference]: Finished difference Result 5949 states and 7278 transitions. [2024-11-24 00:11:28,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:11:28,024 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2024-11-24 00:11:28,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:28,040 INFO L225 Difference]: With dead ends: 5949 [2024-11-24 00:11:28,040 INFO L226 Difference]: Without dead ends: 3904 [2024-11-24 00:11:28,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:11:28,045 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 84 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:28,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1275 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:11:28,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3904 states. [2024-11-24 00:11:28,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3904 to 3876. [2024-11-24 00:11:28,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3876 states, 3457 states have (on average 1.1790569858258606) internal successors, (4076), 3496 states have internal predecessors, (4076), 314 states have call successors, (314), 104 states have call predecessors, (314), 104 states have return successors, (314), 275 states have call predecessors, (314), 314 states have call successors, (314) [2024-11-24 00:11:28,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3876 states to 3876 states and 4704 transitions. [2024-11-24 00:11:28,602 INFO L78 Accepts]: Start accepts. Automaton has 3876 states and 4704 transitions. Word has length 191 [2024-11-24 00:11:28,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:28,604 INFO L471 AbstractCegarLoop]: Abstraction has 3876 states and 4704 transitions. [2024-11-24 00:11:28,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:28,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3876 states and 4704 transitions. [2024-11-24 00:11:28,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 00:11:28,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:28,611 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:28,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 00:11:28,611 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:28,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:28,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1484459417, now seen corresponding path program 1 times [2024-11-24 00:11:28,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:28,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679246104] [2024-11-24 00:11:28,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:28,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:29,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:29,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:29,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679246104] [2024-11-24 00:11:29,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679246104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:29,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:29,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:11:29,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638178469] [2024-11-24 00:11:29,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:29,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:11:29,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:29,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:11:29,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:11:29,742 INFO L87 Difference]: Start difference. First operand 3876 states and 4704 transitions. Second operand has 9 states, 7 states have (on average 11.285714285714286) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 00:11:30,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:30,864 INFO L93 Difference]: Finished difference Result 8776 states and 10630 transitions. [2024-11-24 00:11:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:11:30,865 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.285714285714286) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) Word has length 191 [2024-11-24 00:11:30,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:30,886 INFO L225 Difference]: With dead ends: 8776 [2024-11-24 00:11:30,886 INFO L226 Difference]: Without dead ends: 4903 [2024-11-24 00:11:30,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:11:30,893 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 146 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:30,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1075 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:11:30,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2024-11-24 00:11:31,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4857. [2024-11-24 00:11:31,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4857 states, 4315 states have (on average 1.1740440324449595) internal successors, (5066), 4365 states have internal predecessors, (5066), 404 states have call successors, (404), 137 states have call predecessors, (404), 137 states have return successors, (404), 354 states have call predecessors, (404), 404 states have call successors, (404) [2024-11-24 00:11:31,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4857 states to 4857 states and 5874 transitions. [2024-11-24 00:11:31,616 INFO L78 Accepts]: Start accepts. Automaton has 4857 states and 5874 transitions. Word has length 191 [2024-11-24 00:11:31,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:31,617 INFO L471 AbstractCegarLoop]: Abstraction has 4857 states and 5874 transitions. [2024-11-24 00:11:31,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.285714285714286) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 00:11:31,619 INFO L276 IsEmpty]: Start isEmpty. Operand 4857 states and 5874 transitions. [2024-11-24 00:11:31,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 00:11:31,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:31,627 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:31,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 00:11:31,628 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:31,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:31,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1877486427, now seen corresponding path program 1 times [2024-11-24 00:11:31,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:31,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508020903] [2024-11-24 00:11:31,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:31,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:32,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:32,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508020903] [2024-11-24 00:11:32,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508020903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:32,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:32,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:11:32,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251634709] [2024-11-24 00:11:32,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:32,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:11:32,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:32,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:11:32,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:11:32,477 INFO L87 Difference]: Start difference. First operand 4857 states and 5874 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:11:33,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:33,293 INFO L93 Difference]: Finished difference Result 10849 states and 13159 transitions. [2024-11-24 00:11:33,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:11:33,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 191 [2024-11-24 00:11:33,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:33,317 INFO L225 Difference]: With dead ends: 10849 [2024-11-24 00:11:33,317 INFO L226 Difference]: Without dead ends: 6028 [2024-11-24 00:11:33,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:11:33,327 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 144 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2069 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:33,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2069 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:11:33,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6028 states. [2024-11-24 00:11:34,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6028 to 5407. [2024-11-24 00:11:34,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5407 states, 4862 states have (on average 1.169683257918552) internal successors, (5687), 4912 states have internal predecessors, (5687), 406 states have call successors, (406), 138 states have call predecessors, (406), 138 states have return successors, (406), 356 states have call predecessors, (406), 406 states have call successors, (406) [2024-11-24 00:11:34,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 6499 transitions. [2024-11-24 00:11:34,041 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 6499 transitions. Word has length 191 [2024-11-24 00:11:34,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:34,041 INFO L471 AbstractCegarLoop]: Abstraction has 5407 states and 6499 transitions. [2024-11-24 00:11:34,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:11:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 6499 transitions. [2024-11-24 00:11:34,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 00:11:34,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:34,050 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:34,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 00:11:34,051 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:34,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1438700581, now seen corresponding path program 1 times [2024-11-24 00:11:34,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:34,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66159001] [2024-11-24 00:11:34,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:34,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:35,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:35,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:35,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66159001] [2024-11-24 00:11:35,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66159001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:35,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:35,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:35,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870863715] [2024-11-24 00:11:35,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:35,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:11:35,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:35,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:11:35,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:11:35,202 INFO L87 Difference]: Start difference. First operand 5407 states and 6499 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:35,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:35,889 INFO L93 Difference]: Finished difference Result 10736 states and 12876 transitions. [2024-11-24 00:11:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:11:35,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2024-11-24 00:11:35,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:35,909 INFO L225 Difference]: With dead ends: 10736 [2024-11-24 00:11:35,909 INFO L226 Difference]: Without dead ends: 5373 [2024-11-24 00:11:35,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:35,917 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 145 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:35,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 710 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:11:35,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5373 states. [2024-11-24 00:11:36,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 4449. [2024-11-24 00:11:36,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4449 states, 4119 states have (on average 1.1536780772032047) internal successors, (4752), 4149 states have internal predecessors, (4752), 243 states have call successors, (243), 86 states have call predecessors, (243), 86 states have return successors, (243), 213 states have call predecessors, (243), 243 states have call successors, (243) [2024-11-24 00:11:36,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4449 states to 4449 states and 5238 transitions. [2024-11-24 00:11:36,236 INFO L78 Accepts]: Start accepts. Automaton has 4449 states and 5238 transitions. Word has length 191 [2024-11-24 00:11:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:36,236 INFO L471 AbstractCegarLoop]: Abstraction has 4449 states and 5238 transitions. [2024-11-24 00:11:36,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:36,236 INFO L276 IsEmpty]: Start isEmpty. Operand 4449 states and 5238 transitions. [2024-11-24 00:11:36,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-24 00:11:36,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:36,245 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:36,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 00:11:36,245 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:36,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:36,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1633060821, now seen corresponding path program 1 times [2024-11-24 00:11:36,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:36,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343589296] [2024-11-24 00:11:36,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:36,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:38,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:38,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:38,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343589296] [2024-11-24 00:11:38,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343589296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:38,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:38,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:11:38,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093192472] [2024-11-24 00:11:38,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:38,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:11:38,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:38,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:11:38,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:11:38,137 INFO L87 Difference]: Start difference. First operand 4449 states and 5238 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:39,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:39,458 INFO L93 Difference]: Finished difference Result 12489 states and 14629 transitions. [2024-11-24 00:11:39,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:11:39,458 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 192 [2024-11-24 00:11:39,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:39,481 INFO L225 Difference]: With dead ends: 12489 [2024-11-24 00:11:39,481 INFO L226 Difference]: Without dead ends: 8080 [2024-11-24 00:11:39,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:11:39,489 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 320 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:39,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 2234 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:11:39,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8080 states. [2024-11-24 00:11:40,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8080 to 4593. [2024-11-24 00:11:40,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4593 states, 4263 states have (on average 1.1541168191414497) internal successors, (4920), 4293 states have internal predecessors, (4920), 243 states have call successors, (243), 86 states have call predecessors, (243), 86 states have return successors, (243), 213 states have call predecessors, (243), 243 states have call successors, (243) [2024-11-24 00:11:40,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4593 states to 4593 states and 5406 transitions. [2024-11-24 00:11:40,099 INFO L78 Accepts]: Start accepts. Automaton has 4593 states and 5406 transitions. Word has length 192 [2024-11-24 00:11:40,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:40,100 INFO L471 AbstractCegarLoop]: Abstraction has 4593 states and 5406 transitions. [2024-11-24 00:11:40,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 4593 states and 5406 transitions. [2024-11-24 00:11:40,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-24 00:11:40,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:40,109 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:40,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 00:11:40,109 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:40,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:40,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1358301207, now seen corresponding path program 1 times [2024-11-24 00:11:40,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:40,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835097868] [2024-11-24 00:11:40,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:40,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:40,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:40,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:40,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835097868] [2024-11-24 00:11:40,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835097868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:40,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:40,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:11:40,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321214963] [2024-11-24 00:11:40,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:40,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:11:40,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:40,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:11:40,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:11:40,935 INFO L87 Difference]: Start difference. First operand 4593 states and 5406 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:41,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:41,368 INFO L93 Difference]: Finished difference Result 8816 states and 10383 transitions. [2024-11-24 00:11:41,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:11:41,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 192 [2024-11-24 00:11:41,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:41,383 INFO L225 Difference]: With dead ends: 8816 [2024-11-24 00:11:41,383 INFO L226 Difference]: Without dead ends: 4263 [2024-11-24 00:11:41,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:11:41,390 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 89 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:41,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 851 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:11:41,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4263 states. [2024-11-24 00:11:41,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4263 to 4261. [2024-11-24 00:11:41,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4261 states, 3931 states have (on average 1.1477995421012466) internal successors, (4512), 3961 states have internal predecessors, (4512), 243 states have call successors, (243), 86 states have call predecessors, (243), 86 states have return successors, (243), 213 states have call predecessors, (243), 243 states have call successors, (243) [2024-11-24 00:11:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4261 states to 4261 states and 4998 transitions. [2024-11-24 00:11:41,772 INFO L78 Accepts]: Start accepts. Automaton has 4261 states and 4998 transitions. Word has length 192 [2024-11-24 00:11:41,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:41,772 INFO L471 AbstractCegarLoop]: Abstraction has 4261 states and 4998 transitions. [2024-11-24 00:11:41,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:11:41,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4261 states and 4998 transitions. [2024-11-24 00:11:41,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-24 00:11:41,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:41,778 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:41,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 00:11:41,778 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:41,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:41,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1417294, now seen corresponding path program 1 times [2024-11-24 00:11:41,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:41,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332309828] [2024-11-24 00:11:41,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:41,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:43,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:43,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:43,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332309828] [2024-11-24 00:11:43,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332309828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:43,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:43,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:11:43,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630572219] [2024-11-24 00:11:43,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:43,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:11:43,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:43,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:11:43,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:11:43,116 INFO L87 Difference]: Start difference. First operand 4261 states and 4998 transitions. Second operand has 11 states, 9 states have (on average 9.0) internal successors, (81), 11 states have internal predecessors, (81), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 00:11:43,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:43,990 INFO L93 Difference]: Finished difference Result 10230 states and 11995 transitions. [2024-11-24 00:11:43,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:11:43,990 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 9.0) internal successors, (81), 11 states have internal predecessors, (81), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) Word has length 193 [2024-11-24 00:11:43,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:44,007 INFO L225 Difference]: With dead ends: 10230 [2024-11-24 00:11:44,007 INFO L226 Difference]: Without dead ends: 6009 [2024-11-24 00:11:44,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:11:44,013 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 137 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:44,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1580 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:11:44,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2024-11-24 00:11:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 5115. [2024-11-24 00:11:44,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 4695 states have (on average 1.1463258785942492) internal successors, (5382), 4735 states have internal predecessors, (5382), 307 states have call successors, (307), 112 states have call predecessors, (307), 112 states have return successors, (307), 267 states have call predecessors, (307), 307 states have call successors, (307) [2024-11-24 00:11:44,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 5996 transitions. [2024-11-24 00:11:44,494 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 5996 transitions. Word has length 193 [2024-11-24 00:11:44,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:44,495 INFO L471 AbstractCegarLoop]: Abstraction has 5115 states and 5996 transitions. [2024-11-24 00:11:44,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 9.0) internal successors, (81), 11 states have internal predecessors, (81), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 00:11:44,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 5996 transitions. [2024-11-24 00:11:44,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-24 00:11:44,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:44,501 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:44,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-24 00:11:44,501 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:44,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash -391609716, now seen corresponding path program 1 times [2024-11-24 00:11:44,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:44,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433263064] [2024-11-24 00:11:44,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:44,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:45,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:45,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433263064] [2024-11-24 00:11:45,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433263064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:45,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:45,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:11:45,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74265435] [2024-11-24 00:11:45,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:45,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:11:45,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:45,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:11:45,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:11:45,450 INFO L87 Difference]: Start difference. First operand 5115 states and 5996 transitions. Second operand has 9 states, 7 states have (on average 11.571428571428571) internal successors, (81), 9 states have internal predecessors, (81), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 00:11:46,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:46,178 INFO L93 Difference]: Finished difference Result 11096 states and 13001 transitions. [2024-11-24 00:11:46,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:11:46,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.571428571428571) internal successors, (81), 9 states have internal predecessors, (81), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) Word has length 193 [2024-11-24 00:11:46,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:46,196 INFO L225 Difference]: With dead ends: 11096 [2024-11-24 00:11:46,196 INFO L226 Difference]: Without dead ends: 6021 [2024-11-24 00:11:46,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:11:46,207 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 202 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:46,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 1016 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:11:46,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2024-11-24 00:11:46,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 5543. [2024-11-24 00:11:46,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5543 states, 5027 states have (on average 1.1446190570917048) internal successors, (5754), 5077 states have internal predecessors, (5754), 375 states have call successors, (375), 140 states have call predecessors, (375), 140 states have return successors, (375), 325 states have call predecessors, (375), 375 states have call successors, (375) [2024-11-24 00:11:46,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5543 states to 5543 states and 6504 transitions. [2024-11-24 00:11:46,916 INFO L78 Accepts]: Start accepts. Automaton has 5543 states and 6504 transitions. Word has length 193 [2024-11-24 00:11:46,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:46,917 INFO L471 AbstractCegarLoop]: Abstraction has 5543 states and 6504 transitions. [2024-11-24 00:11:46,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.571428571428571) internal successors, (81), 9 states have internal predecessors, (81), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-24 00:11:46,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5543 states and 6504 transitions. [2024-11-24 00:11:46,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-24 00:11:46,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:46,924 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:46,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-24 00:11:46,925 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:46,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:46,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1819775333, now seen corresponding path program 1 times [2024-11-24 00:11:46,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:46,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455697378] [2024-11-24 00:11:46,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:46,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 24 proven. 42 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:11:47,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:47,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455697378] [2024-11-24 00:11:47,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455697378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:47,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278024625] [2024-11-24 00:11:47,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:47,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:47,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:47,816 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:47,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:11:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:48,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:11:48,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:48,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 00:11:48,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-11-24 00:11:48,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 38 [2024-11-24 00:11:48,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 64 [2024-11-24 00:11:48,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:48,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2024-11-24 00:11:48,726 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:48,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 51 [2024-11-24 00:11:48,829 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:48,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 54 [2024-11-24 00:11:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 486 proven. 42 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-24 00:11:49,389 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 24 proven. 42 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:11:49,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278024625] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:11:49,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:11:49,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 17 [2024-11-24 00:11:49,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325244786] [2024-11-24 00:11:49,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:49,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 00:11:49,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:49,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 00:11:49,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:11:49,900 INFO L87 Difference]: Start difference. First operand 5543 states and 6504 transitions. Second operand has 17 states, 15 states have (on average 10.6) internal successors, (159), 17 states have internal predecessors, (159), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-24 00:11:51,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:51,851 INFO L93 Difference]: Finished difference Result 11119 states and 13017 transitions. [2024-11-24 00:11:51,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-24 00:11:51,851 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 10.6) internal successors, (159), 17 states have internal predecessors, (159), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 4 states have call successors, (38) Word has length 193 [2024-11-24 00:11:51,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:51,871 INFO L225 Difference]: With dead ends: 11119 [2024-11-24 00:11:51,871 INFO L226 Difference]: Without dead ends: 5616 [2024-11-24 00:11:51,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 378 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=309, Invalid=1251, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 00:11:51,879 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 465 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:51,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1190 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:11:51,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5616 states. [2024-11-24 00:11:52,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5616 to 3473. [2024-11-24 00:11:52,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3473 states, 3111 states have (on average 1.1423979427836708) internal successors, (3554), 3141 states have internal predecessors, (3554), 259 states have call successors, (259), 102 states have call predecessors, (259), 102 states have return successors, (259), 229 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-24 00:11:52,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3473 states to 3473 states and 4072 transitions. [2024-11-24 00:11:52,436 INFO L78 Accepts]: Start accepts. Automaton has 3473 states and 4072 transitions. Word has length 193 [2024-11-24 00:11:52,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:52,437 INFO L471 AbstractCegarLoop]: Abstraction has 3473 states and 4072 transitions. [2024-11-24 00:11:52,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 10.6) internal successors, (159), 17 states have internal predecessors, (159), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (38), 2 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-24 00:11:52,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3473 states and 4072 transitions. [2024-11-24 00:11:52,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-24 00:11:52,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:52,441 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:52,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 00:11:52,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-24 00:11:52,645 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:52,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:52,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1361550103, now seen corresponding path program 1 times [2024-11-24 00:11:52,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:52,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585068022] [2024-11-24 00:11:52,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:52,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:53,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 36 proven. 30 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:11:53,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:53,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585068022] [2024-11-24 00:11:53,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585068022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:53,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232139463] [2024-11-24 00:11:53,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:53,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:53,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:53,287 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:53,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:11:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:53,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:11:53,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:53,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 38 [2024-11-24 00:11:53,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 64 [2024-11-24 00:11:53,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:53,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2024-11-24 00:11:54,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 66 [2024-11-24 00:11:54,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:54,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 94 [2024-11-24 00:11:54,071 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:54,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 54 [2024-11-24 00:11:54,257 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:54,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 83 [2024-11-24 00:11:55,067 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:55,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 73 [2024-11-24 00:11:55,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 526 proven. 30 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2024-11-24 00:11:55,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:55,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 36 proven. 30 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:11:55,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232139463] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:11:55,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:11:55,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 8] total 16 [2024-11-24 00:11:55,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168801520] [2024-11-24 00:11:55,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:55,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:11:55,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:55,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:11:55,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:11:55,515 INFO L87 Difference]: Start difference. First operand 3473 states and 4072 transitions. Second operand has 16 states, 13 states have (on average 11.76923076923077) internal successors, (153), 16 states have internal predecessors, (153), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 2 states have call predecessors, (35), 5 states have call successors, (35) [2024-11-24 00:11:56,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:56,875 INFO L93 Difference]: Finished difference Result 6137 states and 7163 transitions. [2024-11-24 00:11:56,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 00:11:56,876 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 11.76923076923077) internal successors, (153), 16 states have internal predecessors, (153), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 2 states have call predecessors, (35), 5 states have call successors, (35) Word has length 193 [2024-11-24 00:11:56,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:56,885 INFO L225 Difference]: With dead ends: 6137 [2024-11-24 00:11:56,885 INFO L226 Difference]: Without dead ends: 2702 [2024-11-24 00:11:56,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 378 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:11:56,889 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 211 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:56,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 1059 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:11:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2024-11-24 00:11:57,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2109. [2024-11-24 00:11:57,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 1970 states have (on average 1.133502538071066) internal successors, (2233), 1980 states have internal predecessors, (2233), 98 states have call successors, (98), 40 states have call predecessors, (98), 40 states have return successors, (98), 88 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:11:57,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2429 transitions. [2024-11-24 00:11:57,065 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2429 transitions. Word has length 193 [2024-11-24 00:11:57,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:57,066 INFO L471 AbstractCegarLoop]: Abstraction has 2109 states and 2429 transitions. [2024-11-24 00:11:57,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 11.76923076923077) internal successors, (153), 16 states have internal predecessors, (153), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 2 states have call predecessors, (35), 5 states have call successors, (35) [2024-11-24 00:11:57,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2429 transitions. [2024-11-24 00:11:57,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-24 00:11:57,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:57,069 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:57,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 00:11:57,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-24 00:11:57,270 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:57,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:57,270 INFO L85 PathProgramCache]: Analyzing trace with hash 114702216, now seen corresponding path program 1 times [2024-11-24 00:11:57,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:57,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066266620] [2024-11-24 00:11:57,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:57,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:57,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:11:57,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:57,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066266620] [2024-11-24 00:11:57,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066266620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:57,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:57,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:11:57,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728283970] [2024-11-24 00:11:57,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:57,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:11:57,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:57,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:11:57,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:11:57,385 INFO L87 Difference]: Start difference. First operand 2109 states and 2429 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:11:57,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:57,589 INFO L93 Difference]: Finished difference Result 3676 states and 4247 transitions. [2024-11-24 00:11:57,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:11:57,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 193 [2024-11-24 00:11:57,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:57,596 INFO L225 Difference]: With dead ends: 3676 [2024-11-24 00:11:57,596 INFO L226 Difference]: Without dead ends: 1605 [2024-11-24 00:11:57,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:11:57,599 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:57,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 501 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:11:57,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2024-11-24 00:11:57,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1605. [2024-11-24 00:11:57,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1466 states have (on average 1.130286493860846) internal successors, (1657), 1476 states have internal predecessors, (1657), 98 states have call successors, (98), 40 states have call predecessors, (98), 40 states have return successors, (98), 88 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-24 00:11:57,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 1853 transitions. [2024-11-24 00:11:57,803 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 1853 transitions. Word has length 193 [2024-11-24 00:11:57,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:57,804 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 1853 transitions. [2024-11-24 00:11:57,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:11:57,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 1853 transitions. [2024-11-24 00:11:57,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-24 00:11:57,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:57,807 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:57,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-24 00:11:57,807 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:57,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:57,807 INFO L85 PathProgramCache]: Analyzing trace with hash 598579347, now seen corresponding path program 1 times [2024-11-24 00:11:57,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:57,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578459431] [2024-11-24 00:11:57,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:57,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 30 proven. 36 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:11:58,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:58,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578459431] [2024-11-24 00:11:58,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578459431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:58,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705030077] [2024-11-24 00:11:58,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:58,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:58,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:58,403 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:58,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:11:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:58,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-24 00:11:58,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:58,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:11:58,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:11:58,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:11:58,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:11:58,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:11:59,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2024-11-24 00:11:59,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 62 [2024-11-24 00:11:59,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2024-11-24 00:11:59,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 62 [2024-11-24 00:11:59,310 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:59,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 90 [2024-11-24 00:11:59,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2024-11-24 00:11:59,464 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:59,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 84 [2024-11-24 00:11:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 256 proven. 57 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2024-11-24 00:11:59,689 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:00,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:00,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705030077] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:12:00,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:12:00,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 19 [2024-11-24 00:12:00,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450847685] [2024-11-24 00:12:00,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:00,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:12:00,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:00,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:12:00,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:12:00,210 INFO L87 Difference]: Start difference. First operand 1605 states and 1853 transitions. Second operand has 19 states, 15 states have (on average 9.266666666666667) internal successors, (139), 19 states have internal predecessors, (139), 7 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (63), 3 states have call predecessors, (63), 7 states have call successors, (63) [2024-11-24 00:12:03,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:03,707 INFO L93 Difference]: Finished difference Result 2948 states and 3410 transitions. [2024-11-24 00:12:03,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-24 00:12:03,708 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 9.266666666666667) internal successors, (139), 19 states have internal predecessors, (139), 7 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (63), 3 states have call predecessors, (63), 7 states have call successors, (63) Word has length 193 [2024-11-24 00:12:03,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:03,715 INFO L225 Difference]: With dead ends: 2948 [2024-11-24 00:12:03,715 INFO L226 Difference]: Without dead ends: 1377 [2024-11-24 00:12:03,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 374 SyntacticMatches, 9 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1353 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=751, Invalid=3941, Unknown=0, NotChecked=0, Total=4692 [2024-11-24 00:12:03,724 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 529 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 2033 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 2033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:03,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 1557 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 2033 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 00:12:03,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2024-11-24 00:12:03,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 695. [2024-11-24 00:12:03,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 604 states have (on average 1.1175496688741722) internal successors, (675), 608 states have internal predecessors, (675), 62 states have call successors, (62), 28 states have call predecessors, (62), 28 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-24 00:12:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 799 transitions. [2024-11-24 00:12:03,874 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 799 transitions. Word has length 193 [2024-11-24 00:12:03,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:03,875 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 799 transitions. [2024-11-24 00:12:03,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 9.266666666666667) internal successors, (139), 19 states have internal predecessors, (139), 7 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (63), 3 states have call predecessors, (63), 7 states have call successors, (63) [2024-11-24 00:12:03,875 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 799 transitions. [2024-11-24 00:12:03,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-24 00:12:03,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:03,877 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:03,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-24 00:12:04,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-24 00:12:04,078 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:04,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:04,079 INFO L85 PathProgramCache]: Analyzing trace with hash -422330723, now seen corresponding path program 1 times [2024-11-24 00:12:04,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:04,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212503107] [2024-11-24 00:12:04,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:04,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:04,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:04,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:04,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212503107] [2024-11-24 00:12:04,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212503107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:04,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192587868] [2024-11-24 00:12:04,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:04,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:04,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:04,928 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:12:04,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 00:12:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:05,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 00:12:05,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:05,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 55 [2024-11-24 00:12:05,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:05,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 40 [2024-11-24 00:12:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:05,954 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:06,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:12:06,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192587868] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:06,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:12:06,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 11] total 17 [2024-11-24 00:12:06,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265984391] [2024-11-24 00:12:06,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:06,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:12:06,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:06,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:12:06,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:12:06,651 INFO L87 Difference]: Start difference. First operand 695 states and 799 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:12:07,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:07,321 INFO L93 Difference]: Finished difference Result 1926 states and 2208 transitions. [2024-11-24 00:12:07,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:12:07,322 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 197 [2024-11-24 00:12:07,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:07,325 INFO L225 Difference]: With dead ends: 1926 [2024-11-24 00:12:07,325 INFO L226 Difference]: Without dead ends: 1269 [2024-11-24 00:12:07,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 390 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:12:07,327 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 95 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:07,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1486 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:12:07,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-11-24 00:12:07,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1265. [2024-11-24 00:12:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1106 states have (on average 1.1148282097649187) internal successors, (1233), 1114 states have internal predecessors, (1233), 106 states have call successors, (106), 52 states have call predecessors, (106), 52 states have return successors, (106), 98 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-24 00:12:07,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1445 transitions. [2024-11-24 00:12:07,570 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1445 transitions. Word has length 197 [2024-11-24 00:12:07,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:07,570 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 1445 transitions. [2024-11-24 00:12:07,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:12:07,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1445 transitions. [2024-11-24 00:12:07,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-24 00:12:07,572 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:07,572 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:07,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-24 00:12:07,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-24 00:12:07,773 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:07,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:07,773 INFO L85 PathProgramCache]: Analyzing trace with hash 257727647, now seen corresponding path program 1 times [2024-11-24 00:12:07,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:07,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209753570] [2024-11-24 00:12:07,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:07,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:08,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:12:08,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:08,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209753570] [2024-11-24 00:12:08,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209753570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:08,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:08,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:12:08,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849425928] [2024-11-24 00:12:08,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:08,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:12:08,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:08,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:12:08,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:12:08,124 INFO L87 Difference]: Start difference. First operand 1265 states and 1445 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:12:08,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:08,451 INFO L93 Difference]: Finished difference Result 2514 states and 2866 transitions. [2024-11-24 00:12:08,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:12:08,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 197 [2024-11-24 00:12:08,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:08,457 INFO L225 Difference]: With dead ends: 2514 [2024-11-24 00:12:08,458 INFO L226 Difference]: Without dead ends: 1287 [2024-11-24 00:12:08,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:12:08,460 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 89 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:08,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 701 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:12:08,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2024-11-24 00:12:08,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1249. [2024-11-24 00:12:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1090 states have (on average 1.1091743119266055) internal successors, (1209), 1098 states have internal predecessors, (1209), 106 states have call successors, (106), 52 states have call predecessors, (106), 52 states have return successors, (106), 98 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-24 00:12:08,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1421 transitions. [2024-11-24 00:12:08,731 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1421 transitions. Word has length 197 [2024-11-24 00:12:08,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:08,732 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1421 transitions. [2024-11-24 00:12:08,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:12:08,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1421 transitions. [2024-11-24 00:12:08,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-24 00:12:08,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:08,734 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:08,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-24 00:12:08,734 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:08,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:08,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1315999, now seen corresponding path program 1 times [2024-11-24 00:12:08,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:08,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901592028] [2024-11-24 00:12:08,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:08,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:12:09,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:09,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901592028] [2024-11-24 00:12:09,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901592028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:09,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:09,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:12:09,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379871212] [2024-11-24 00:12:09,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:09,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:12:09,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:09,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:12:09,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:12:09,210 INFO L87 Difference]: Start difference. First operand 1249 states and 1421 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:12:09,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:09,589 INFO L93 Difference]: Finished difference Result 2472 states and 2808 transitions. [2024-11-24 00:12:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:12:09,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 197 [2024-11-24 00:12:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:09,594 INFO L225 Difference]: With dead ends: 2472 [2024-11-24 00:12:09,594 INFO L226 Difference]: Without dead ends: 1261 [2024-11-24 00:12:09,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:12:09,595 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 88 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:09,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1103 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:12:09,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-11-24 00:12:09,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1037. [2024-11-24 00:12:09,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 944 states have (on average 1.1091101694915255) internal successors, (1047), 948 states have internal predecessors, (1047), 62 states have call successors, (62), 30 states have call predecessors, (62), 30 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-24 00:12:09,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1171 transitions. [2024-11-24 00:12:09,768 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1171 transitions. Word has length 197 [2024-11-24 00:12:09,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:09,769 INFO L471 AbstractCegarLoop]: Abstraction has 1037 states and 1171 transitions. [2024-11-24 00:12:09,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 00:12:09,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1171 transitions. [2024-11-24 00:12:09,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-24 00:12:09,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:09,772 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:09,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-24 00:12:09,772 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:09,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:09,773 INFO L85 PathProgramCache]: Analyzing trace with hash 681374369, now seen corresponding path program 1 times [2024-11-24 00:12:09,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:09,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962709248] [2024-11-24 00:12:09,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:09,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:12:10,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:10,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962709248] [2024-11-24 00:12:10,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962709248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:10,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:10,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:12:10,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258824268] [2024-11-24 00:12:10,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:10,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:12:10,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:10,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:12:10,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:12:10,610 INFO L87 Difference]: Start difference. First operand 1037 states and 1171 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:12:11,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:11,149 INFO L93 Difference]: Finished difference Result 2383 states and 2699 transitions. [2024-11-24 00:12:11,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:12:11,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 197 [2024-11-24 00:12:11,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:11,156 INFO L225 Difference]: With dead ends: 2383 [2024-11-24 00:12:11,156 INFO L226 Difference]: Without dead ends: 1384 [2024-11-24 00:12:11,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:12:11,159 INFO L435 NwaCegarLoop]: 309 mSDtfsCounter, 130 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:11,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2256 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:12:11,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-11-24 00:12:11,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1021. [2024-11-24 00:12:11,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 928 states have (on average 1.1066810344827587) internal successors, (1027), 932 states have internal predecessors, (1027), 62 states have call successors, (62), 30 states have call predecessors, (62), 30 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-24 00:12:11,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1151 transitions. [2024-11-24 00:12:11,394 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1151 transitions. Word has length 197 [2024-11-24 00:12:11,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:11,394 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1151 transitions. [2024-11-24 00:12:11,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:12:11,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1151 transitions. [2024-11-24 00:12:11,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-24 00:12:11,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:11,397 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:11,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-24 00:12:11,397 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:11,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:11,398 INFO L85 PathProgramCache]: Analyzing trace with hash 669451631, now seen corresponding path program 1 times [2024-11-24 00:12:11,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:11,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236628308] [2024-11-24 00:12:11,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:11,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:12,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:12,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:12,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236628308] [2024-11-24 00:12:12,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236628308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:12,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638874493] [2024-11-24 00:12:12,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:12,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:12,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:12,627 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:12:12,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 00:12:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:13,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-24 00:12:13,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:13,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:12:13,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:12:13,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:12:13,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:12:13,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:12:13,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:12:13,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-24 00:12:13,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2024-11-24 00:12:13,681 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:13,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 79 [2024-11-24 00:12:13,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:13,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 39 [2024-11-24 00:12:13,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:13,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 69 [2024-11-24 00:12:14,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:14,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 134 treesize of output 58 [2024-11-24 00:12:14,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 196 proven. 120 refuted. 0 times theorem prover too weak. 696 trivial. 0 not checked. [2024-11-24 00:12:14,796 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:15,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638874493] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:12:15,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:12:15,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 16, 13] total 27 [2024-11-24 00:12:15,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67943491] [2024-11-24 00:12:15,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:15,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-24 00:12:15,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:15,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-24 00:12:15,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=585, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:12:15,890 INFO L87 Difference]: Start difference. First operand 1021 states and 1151 transitions. Second operand has 27 states, 25 states have (on average 8.96) internal successors, (224), 27 states have internal predecessors, (224), 5 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 3 states have call predecessors, (63), 5 states have call successors, (63) [2024-11-24 00:12:18,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:18,267 INFO L93 Difference]: Finished difference Result 2914 states and 3238 transitions. [2024-11-24 00:12:18,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-24 00:12:18,267 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 8.96) internal successors, (224), 27 states have internal predecessors, (224), 5 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 3 states have call predecessors, (63), 5 states have call successors, (63) Word has length 199 [2024-11-24 00:12:18,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:18,272 INFO L225 Difference]: With dead ends: 2914 [2024-11-24 00:12:18,272 INFO L226 Difference]: Without dead ends: 1931 [2024-11-24 00:12:18,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 386 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=602, Invalid=2704, Unknown=0, NotChecked=0, Total=3306 [2024-11-24 00:12:18,274 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 1445 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:18,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 1648 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:12:18,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2024-11-24 00:12:18,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1155. [2024-11-24 00:12:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1062 states have (on average 1.0894538606403013) internal successors, (1157), 1066 states have internal predecessors, (1157), 62 states have call successors, (62), 30 states have call predecessors, (62), 30 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-24 00:12:18,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1281 transitions. [2024-11-24 00:12:18,394 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1281 transitions. Word has length 199 [2024-11-24 00:12:18,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:18,395 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1281 transitions. [2024-11-24 00:12:18,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 8.96) internal successors, (224), 27 states have internal predecessors, (224), 5 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 3 states have call predecessors, (63), 5 states have call successors, (63) [2024-11-24 00:12:18,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1281 transitions. [2024-11-24 00:12:18,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 00:12:18,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:18,396 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:18,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 00:12:18,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:18,597 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:18,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:18,597 INFO L85 PathProgramCache]: Analyzing trace with hash 8707620, now seen corresponding path program 1 times [2024-11-24 00:12:18,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:18,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694678204] [2024-11-24 00:12:18,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:18,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:12:19,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:19,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694678204] [2024-11-24 00:12:19,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694678204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:19,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:19,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:12:19,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968700201] [2024-11-24 00:12:19,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:19,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:12:19,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:19,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:12:19,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:12:19,017 INFO L87 Difference]: Start difference. First operand 1155 states and 1281 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:12:19,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:19,370 INFO L93 Difference]: Finished difference Result 2274 states and 2520 transitions. [2024-11-24 00:12:19,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:12:19,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 204 [2024-11-24 00:12:19,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:19,375 INFO L225 Difference]: With dead ends: 2274 [2024-11-24 00:12:19,375 INFO L226 Difference]: Without dead ends: 1157 [2024-11-24 00:12:19,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:12:19,377 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 26 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:19,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 563 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:12:19,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2024-11-24 00:12:19,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1155. [2024-11-24 00:12:19,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1062 states have (on average 1.0875706214689265) internal successors, (1155), 1066 states have internal predecessors, (1155), 62 states have call successors, (62), 30 states have call predecessors, (62), 30 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-24 00:12:19,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1279 transitions. [2024-11-24 00:12:19,540 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1279 transitions. Word has length 204 [2024-11-24 00:12:19,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:19,540 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1279 transitions. [2024-11-24 00:12:19,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:12:19,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1279 transitions. [2024-11-24 00:12:19,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 00:12:19,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:19,542 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:19,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-24 00:12:19,542 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:19,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:19,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1783714982, now seen corresponding path program 1 times [2024-11-24 00:12:19,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:19,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414561893] [2024-11-24 00:12:19,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:19,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 15 proven. 51 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:20,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:20,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414561893] [2024-11-24 00:12:20,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414561893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:20,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376290038] [2024-11-24 00:12:20,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:20,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:20,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:20,461 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:12:20,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 00:12:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:20,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 00:12:20,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:20,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:12:21,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-24 00:12:21,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-24 00:12:21,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-24 00:12:21,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-24 00:12:21,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2024-11-24 00:12:21,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 50 [2024-11-24 00:12:21,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2024-11-24 00:12:21,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 50 [2024-11-24 00:12:21,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 74 [2024-11-24 00:12:21,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 44 [2024-11-24 00:12:22,011 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:22,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 69 [2024-11-24 00:12:22,554 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:22,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 65 [2024-11-24 00:12:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 372 proven. 51 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2024-11-24 00:12:22,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 15 proven. 51 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:23,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376290038] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:12:23,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:12:23,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 7] total 18 [2024-11-24 00:12:23,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309941368] [2024-11-24 00:12:23,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:23,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:12:23,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:23,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:12:23,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:12:23,056 INFO L87 Difference]: Start difference. First operand 1155 states and 1279 transitions. Second operand has 18 states, 15 states have (on average 13.4) internal successors, (201), 18 states have internal predecessors, (201), 7 states have call successors, (47), 3 states have call predecessors, (47), 6 states have return successors, (47), 4 states have call predecessors, (47), 7 states have call successors, (47) [2024-11-24 00:12:23,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:23,868 INFO L93 Difference]: Finished difference Result 1918 states and 2121 transitions. [2024-11-24 00:12:23,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:12:23,868 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 13.4) internal successors, (201), 18 states have internal predecessors, (201), 7 states have call successors, (47), 3 states have call predecessors, (47), 6 states have return successors, (47), 4 states have call predecessors, (47), 7 states have call successors, (47) Word has length 204 [2024-11-24 00:12:23,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:23,871 INFO L225 Difference]: With dead ends: 1918 [2024-11-24 00:12:23,871 INFO L226 Difference]: Without dead ends: 801 [2024-11-24 00:12:23,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 395 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:12:23,873 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 180 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:23,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 646 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:12:23,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-24 00:12:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 775. [2024-11-24 00:12:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 698 states have (on average 1.0845272206303724) internal successors, (757), 700 states have internal predecessors, (757), 50 states have call successors, (50), 26 states have call predecessors, (50), 26 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-24 00:12:23,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 857 transitions. [2024-11-24 00:12:23,956 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 857 transitions. Word has length 204 [2024-11-24 00:12:23,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:23,956 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 857 transitions. [2024-11-24 00:12:23,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 13.4) internal successors, (201), 18 states have internal predecessors, (201), 7 states have call successors, (47), 3 states have call predecessors, (47), 6 states have return successors, (47), 4 states have call predecessors, (47), 7 states have call successors, (47) [2024-11-24 00:12:23,956 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 857 transitions. [2024-11-24 00:12:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 00:12:23,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:23,957 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:23,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-24 00:12:24,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:24,158 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:24,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:24,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1972610404, now seen corresponding path program 1 times [2024-11-24 00:12:24,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:24,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444319078] [2024-11-24 00:12:24,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:24,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 21 proven. 45 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:24,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:24,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444319078] [2024-11-24 00:12:24,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444319078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:24,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912664391] [2024-11-24 00:12:24,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:24,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:24,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:24,749 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:12:24,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 00:12:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:25,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 00:12:25,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:25,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:12:25,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:12:25,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:12:25,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2024-11-24 00:12:25,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 62 [2024-11-24 00:12:25,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2024-11-24 00:12:25,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 62 [2024-11-24 00:12:25,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:25,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 90 [2024-11-24 00:12:25,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:25,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 50 [2024-11-24 00:12:25,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:25,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 75 [2024-11-24 00:12:26,333 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:26,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 65 [2024-11-24 00:12:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 456 proven. 45 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2024-11-24 00:12:26,375 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:26,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 21 proven. 45 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:26,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912664391] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:12:26,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:12:26,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 9] total 18 [2024-11-24 00:12:26,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079694368] [2024-11-24 00:12:26,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:26,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:12:26,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:26,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:12:26,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:12:26,794 INFO L87 Difference]: Start difference. First operand 775 states and 857 transitions. Second operand has 18 states, 15 states have (on average 10.8) internal successors, (162), 18 states have internal predecessors, (162), 5 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (40), 2 states have call predecessors, (40), 5 states have call successors, (40) [2024-11-24 00:12:27,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:27,827 INFO L93 Difference]: Finished difference Result 1340 states and 1476 transitions. [2024-11-24 00:12:27,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:12:27,828 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 10.8) internal successors, (162), 18 states have internal predecessors, (162), 5 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (40), 2 states have call predecessors, (40), 5 states have call successors, (40) Word has length 204 [2024-11-24 00:12:27,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:27,831 INFO L225 Difference]: With dead ends: 1340 [2024-11-24 00:12:27,831 INFO L226 Difference]: Without dead ends: 603 [2024-11-24 00:12:27,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 397 SyntacticMatches, 7 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=817, Unknown=0, NotChecked=0, Total=992 [2024-11-24 00:12:27,832 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 171 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:27,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 841 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:12:27,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-24 00:12:27,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 538. [2024-11-24 00:12:27,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 474 states have (on average 1.0738396624472575) internal successors, (509), 475 states have internal predecessors, (509), 41 states have call successors, (41), 22 states have call predecessors, (41), 22 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 00:12:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 591 transitions. [2024-11-24 00:12:27,912 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 591 transitions. Word has length 204 [2024-11-24 00:12:27,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:27,912 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 591 transitions. [2024-11-24 00:12:27,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 10.8) internal successors, (162), 18 states have internal predecessors, (162), 5 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (40), 2 states have call predecessors, (40), 5 states have call successors, (40) [2024-11-24 00:12:27,913 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 591 transitions. [2024-11-24 00:12:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 00:12:27,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:27,914 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:27,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 00:12:28,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:28,114 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:28,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:28,115 INFO L85 PathProgramCache]: Analyzing trace with hash -2012469724, now seen corresponding path program 1 times [2024-11-24 00:12:28,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:28,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273710282] [2024-11-24 00:12:28,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:28,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 3 proven. 63 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:29,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:29,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273710282] [2024-11-24 00:12:29,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273710282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:29,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874164273] [2024-11-24 00:12:29,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:29,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:29,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:29,119 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:12:29,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 00:12:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:29,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-24 00:12:29,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:29,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:29,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:29,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:29,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:29,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:29,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:29,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-24 00:12:29,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2024-11-24 00:12:29,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:29,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 75 [2024-11-24 00:12:29,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 37 [2024-11-24 00:12:30,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:30,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 51 [2024-11-24 00:12:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 108 proven. 63 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2024-11-24 00:12:30,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 3 proven. 63 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:31,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874164273] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:12:31,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:12:31,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 14] total 24 [2024-11-24 00:12:31,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292112579] [2024-11-24 00:12:31,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:31,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-24 00:12:31,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:31,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-24 00:12:31,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:12:31,035 INFO L87 Difference]: Start difference. First operand 538 states and 591 transitions. Second operand has 24 states, 22 states have (on average 6.7727272727272725) internal successors, (149), 24 states have internal predecessors, (149), 4 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (45), 2 states have call predecessors, (45), 4 states have call successors, (45) [2024-11-24 00:12:32,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:32,028 INFO L93 Difference]: Finished difference Result 1079 states and 1185 transitions. [2024-11-24 00:12:32,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:12:32,029 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 6.7727272727272725) internal successors, (149), 24 states have internal predecessors, (149), 4 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (45), 2 states have call predecessors, (45), 4 states have call successors, (45) Word has length 204 [2024-11-24 00:12:32,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:32,032 INFO L225 Difference]: With dead ends: 1079 [2024-11-24 00:12:32,032 INFO L226 Difference]: Without dead ends: 544 [2024-11-24 00:12:32,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 397 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=187, Invalid=869, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 00:12:32,033 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 184 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:32,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 869 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:12:32,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-24 00:12:32,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 526. [2024-11-24 00:12:32,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 462 states have (on average 1.067099567099567) internal successors, (493), 463 states have internal predecessors, (493), 41 states have call successors, (41), 22 states have call predecessors, (41), 22 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 00:12:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 575 transitions. [2024-11-24 00:12:32,119 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 575 transitions. Word has length 204 [2024-11-24 00:12:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:32,119 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 575 transitions. [2024-11-24 00:12:32,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 6.7727272727272725) internal successors, (149), 24 states have internal predecessors, (149), 4 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (45), 2 states have call predecessors, (45), 4 states have call successors, (45) [2024-11-24 00:12:32,119 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 575 transitions. [2024-11-24 00:12:32,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 00:12:32,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:32,120 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:32,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-24 00:12:32,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:32,321 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:32,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:32,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1570221796, now seen corresponding path program 1 times [2024-11-24 00:12:32,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:32,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574606121] [2024-11-24 00:12:32,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:32,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:33,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:12:33,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:33,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574606121] [2024-11-24 00:12:33,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574606121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:33,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:33,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 00:12:33,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368670009] [2024-11-24 00:12:33,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:33,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:12:33,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:33,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:12:33,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:12:33,323 INFO L87 Difference]: Start difference. First operand 526 states and 575 transitions. Second operand has 15 states, 15 states have (on average 6.133333333333334) internal successors, (92), 15 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:12:34,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:34,586 INFO L93 Difference]: Finished difference Result 745 states and 818 transitions. [2024-11-24 00:12:34,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:12:34,586 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.133333333333334) internal successors, (92), 15 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 204 [2024-11-24 00:12:34,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:34,589 INFO L225 Difference]: With dead ends: 745 [2024-11-24 00:12:34,589 INFO L226 Difference]: Without dead ends: 743 [2024-11-24 00:12:34,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:12:34,590 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 142 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:34,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2064 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:12:34,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-11-24 00:12:34,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 530. [2024-11-24 00:12:34,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 466 states have (on average 1.0708154506437768) internal successors, (499), 467 states have internal predecessors, (499), 41 states have call successors, (41), 22 states have call predecessors, (41), 22 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 00:12:34,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 581 transitions. [2024-11-24 00:12:34,670 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 581 transitions. Word has length 204 [2024-11-24 00:12:34,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:34,671 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 581 transitions. [2024-11-24 00:12:34,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.133333333333334) internal successors, (92), 15 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:12:34,671 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 581 transitions. [2024-11-24 00:12:34,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 00:12:34,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:34,672 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:34,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-24 00:12:34,673 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:34,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:34,673 INFO L85 PathProgramCache]: Analyzing trace with hash -949738138, now seen corresponding path program 1 times [2024-11-24 00:12:34,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:34,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18610716] [2024-11-24 00:12:34,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:34,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-24 00:12:34,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:34,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18610716] [2024-11-24 00:12:34,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18610716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:34,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:34,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:12:34,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371403240] [2024-11-24 00:12:34,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:34,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:12:34,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:34,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:12:34,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:12:34,916 INFO L87 Difference]: Start difference. First operand 530 states and 581 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:12:35,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:35,090 INFO L93 Difference]: Finished difference Result 1057 states and 1159 transitions. [2024-11-24 00:12:35,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:12:35,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 204 [2024-11-24 00:12:35,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:35,094 INFO L225 Difference]: With dead ends: 1057 [2024-11-24 00:12:35,094 INFO L226 Difference]: Without dead ends: 530 [2024-11-24 00:12:35,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:12:35,095 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 28 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:35,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 441 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:12:35,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-24 00:12:35,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-24 00:12:35,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 466 states have (on average 1.0622317596566524) internal successors, (495), 467 states have internal predecessors, (495), 41 states have call successors, (41), 22 states have call predecessors, (41), 22 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-24 00:12:35,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 577 transitions. [2024-11-24 00:12:35,229 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 577 transitions. Word has length 204 [2024-11-24 00:12:35,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:35,229 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 577 transitions. [2024-11-24 00:12:35,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-24 00:12:35,229 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 577 transitions. [2024-11-24 00:12:35,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-24 00:12:35,231 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:35,231 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:35,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-24 00:12:35,231 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:35,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:35,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1264711975, now seen corresponding path program 1 times [2024-11-24 00:12:35,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:35,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474030659] [2024-11-24 00:12:35,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:35,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:36,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 3 proven. 63 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:36,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:36,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474030659] [2024-11-24 00:12:36,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474030659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:36,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082771515] [2024-11-24 00:12:36,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:36,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:36,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:36,049 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:12:36,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 00:12:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:36,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-24 00:12:36,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:36,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:36,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:36,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:36,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:36,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:36,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-24 00:12:36,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2024-11-24 00:12:36,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 58 [2024-11-24 00:12:36,849 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:36,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2024-11-24 00:12:36,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 58 [2024-11-24 00:12:36,913 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:36,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 86 [2024-11-24 00:12:36,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:36,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 48 [2024-11-24 00:12:37,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:37,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 82 [2024-11-24 00:12:37,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 108 proven. 63 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2024-11-24 00:12:37,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 3 proven. 63 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-24 00:12:37,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082771515] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:12:37,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:12:37,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 15 [2024-11-24 00:12:37,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322751371] [2024-11-24 00:12:37,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:37,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:12:37,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:37,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:12:37,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:12:37,701 INFO L87 Difference]: Start difference. First operand 530 states and 577 transitions. Second operand has 15 states, 13 states have (on average 8.846153846153847) internal successors, (115), 15 states have internal predecessors, (115), 4 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (45), 2 states have call predecessors, (45), 4 states have call successors, (45) [2024-11-24 00:12:39,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:39,004 INFO L93 Difference]: Finished difference Result 1292 states and 1407 transitions. [2024-11-24 00:12:39,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-24 00:12:39,005 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 8.846153846153847) internal successors, (115), 15 states have internal predecessors, (115), 4 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (45), 2 states have call predecessors, (45), 4 states have call successors, (45) Word has length 204 [2024-11-24 00:12:39,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:39,007 INFO L225 Difference]: With dead ends: 1292 [2024-11-24 00:12:39,007 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:12:39,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 402 SyntacticMatches, 11 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=209, Invalid=721, Unknown=0, NotChecked=0, Total=930 [2024-11-24 00:12:39,009 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 282 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:39,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 810 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:12:39,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:12:39,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:12:39,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:12:39,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:12:39,012 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2024-11-24 00:12:39,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:39,012 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:12:39,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 8.846153846153847) internal successors, (115), 15 states have internal predecessors, (115), 4 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (45), 2 states have call predecessors, (45), 4 states have call successors, (45) [2024-11-24 00:12:39,012 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:12:39,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:12:39,015 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:12:39,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-24 00:12:39,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9de47376-396c-4908-9695-f853b82aca7a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:39,218 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:39,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:12:50,022 WARN L286 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 278 DAG size of output: 196 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:13:57,714 WARN L286 SmtUtils]: Spent 58.53s on a formula simplification. DAG size of input: 375 DAG size of output: 292 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:14:06,401 WARN L286 SmtUtils]: Spent 6.59s on a formula simplification. DAG size of input: 264 DAG size of output: 193 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:14:15,761 WARN L286 SmtUtils]: Spent 9.36s on a formula simplification. DAG size of input: 295 DAG size of output: 220 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:14:21,785 WARN L286 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 220 DAG size of output: 222 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)