./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.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_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/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_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/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_a4722836-06b5-4232-9e4f-604d68fed5fc/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 6220e6745b3165a6fc1efc167bda264ea9d52d0f56711813aaca8387b0aa2cbd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:19:32,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:19:32,830 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:19:32,837 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:19:32,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:19:32,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:19:32,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:19:32,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:19:32,880 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:19:32,880 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:19:32,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:19:32,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:19:32,882 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:19:32,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:19:32,882 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:19:32,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:19:32,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:19:32,883 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:19:32,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:19:32,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:19:32,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:19:32,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:19:32,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:19:32,884 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:19:32,884 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:19:32,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:19:32,884 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:19:32,884 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:19:32,885 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:19:32,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:19:32,885 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:19:32,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:19:32,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:19:32,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:19:32,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:19:32,885 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:19:32,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:19:32,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:19:32,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:19:32,886 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:19:32,886 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:19:32,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:19:32,886 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:19:32,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:19:32,886 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:19:32,886 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:19:32,886 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:19:32,886 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:19:32,886 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_a4722836-06b5-4232-9e4f-604d68fed5fc/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 -> 6220e6745b3165a6fc1efc167bda264ea9d52d0f56711813aaca8387b0aa2cbd [2024-11-24 00:19:33,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:19:33,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:19:33,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:19:33,195 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:19:33,195 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:19:33,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i [2024-11-24 00:19:36,235 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/data/ee3535ce5/00ed161d8ee14bb5a561b77b5d22d954/FLAG27ffa64e8 [2024-11-24 00:19:36,634 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:19:36,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i [2024-11-24 00:19:36,653 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/data/ee3535ce5/00ed161d8ee14bb5a561b77b5d22d954/FLAG27ffa64e8 [2024-11-24 00:19:36,677 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/data/ee3535ce5/00ed161d8ee14bb5a561b77b5d22d954 [2024-11-24 00:19:36,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:19:36,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:19:36,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:19:36,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:19:36,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:19:36,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:19:36" (1/1) ... [2024-11-24 00:19:36,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3786b6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:36, skipping insertion in model container [2024-11-24 00:19:36,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:19:36" (1/1) ... [2024-11-24 00:19:36,748 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:19:36,923 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_a4722836-06b5-4232-9e4f-604d68fed5fc/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i[915,928] [2024-11-24 00:19:37,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:19:37,233 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:19:37,245 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_a4722836-06b5-4232-9e4f-604d68fed5fc/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i[915,928] [2024-11-24 00:19:37,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:19:37,480 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:19:37,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37 WrapperNode [2024-11-24 00:19:37,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:19:37,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:19:37,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:19:37,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:19:37,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,679 INFO L138 Inliner]: procedures = 26, calls = 74, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 719 [2024-11-24 00:19:37,681 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:19:37,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:19:37,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:19:37,682 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:19:37,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,715 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,836 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:19:37,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,879 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:19:37,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:19:37,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:19:37,951 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:19:37,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (1/1) ... [2024-11-24 00:19:37,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:19:37,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:19:37,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:19:37,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:19:38,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:19:38,028 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:19:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:19:38,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:19:38,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:19:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:19:38,234 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:19:38,236 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:19:39,942 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2024-11-24 00:19:39,942 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:19:39,972 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:19:39,972 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:19:39,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:19:39 BoogieIcfgContainer [2024-11-24 00:19:39,973 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:19:39,975 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:19:39,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:19:39,981 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:19:39,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:19:36" (1/3) ... [2024-11-24 00:19:39,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec391b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:19:39, skipping insertion in model container [2024-11-24 00:19:39,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:19:37" (2/3) ... [2024-11-24 00:19:39,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec391b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:19:39, skipping insertion in model container [2024-11-24 00:19:39,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:19:39" (3/3) ... [2024-11-24 00:19:39,984 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-0.i [2024-11-24 00:19:40,002 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:19:40,004 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-0.i that has 2 procedures, 290 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:19:40,088 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:19:40,103 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;@64671e2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:19:40,103 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:19:40,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 290 states, 226 states have (on average 1.5575221238938053) internal successors, (352), 227 states have internal predecessors, (352), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:19:40,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 00:19:40,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:40,147 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:40,148 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:40,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:40,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1702141139, now seen corresponding path program 1 times [2024-11-24 00:19:40,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:19:40,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071227279] [2024-11-24 00:19:40,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:40,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:19:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:41,173 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2024-11-24 00:19:41,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:19:41,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071227279] [2024-11-24 00:19:41,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071227279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:19:41,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361030654] [2024-11-24 00:19:41,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:41,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:19:41,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:19:41,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:19:41,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:19:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:41,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:19:41,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:19:41,861 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2024-11-24 00:19:41,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:19:41,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361030654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:41,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:19:41,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:19:41,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206851507] [2024-11-24 00:19:41,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:41,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:19:41,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:19:41,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:19:41,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:19:41,909 INFO L87 Difference]: Start difference. First operand has 290 states, 226 states have (on average 1.5575221238938053) internal successors, (352), 227 states have internal predecessors, (352), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-24 00:19:41,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:42,000 INFO L93 Difference]: Finished difference Result 573 states and 1003 transitions. [2024-11-24 00:19:42,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:19:42,003 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) Word has length 429 [2024-11-24 00:19:42,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:42,016 INFO L225 Difference]: With dead ends: 573 [2024-11-24 00:19:42,017 INFO L226 Difference]: Without dead ends: 286 [2024-11-24 00:19:42,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 430 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 00:19:42,029 INFO L435 NwaCegarLoop]: 466 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, 466 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 00:19:42,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:19:42,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-24 00:19:42,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-11-24 00:19:42,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 223 states have (on average 1.5426008968609866) internal successors, (344), 223 states have internal predecessors, (344), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:19:42,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 466 transitions. [2024-11-24 00:19:42,142 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 466 transitions. Word has length 429 [2024-11-24 00:19:42,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:42,143 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 466 transitions. [2024-11-24 00:19:42,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-24 00:19:42,143 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 466 transitions. [2024-11-24 00:19:42,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 00:19:42,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:42,158 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:42,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:19:42,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:19:42,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:42,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:42,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1423623589, now seen corresponding path program 1 times [2024-11-24 00:19:42,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:19:42,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125039882] [2024-11-24 00:19:42,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:42,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:19:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-24 00:19:43,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:19:43,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125039882] [2024-11-24 00:19:43,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125039882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:43,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:43,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:19:43,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529158182] [2024-11-24 00:19:43,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:43,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:19:43,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:19:43,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:19:43,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:19:43,171 INFO L87 Difference]: Start difference. First operand 286 states and 466 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:43,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:43,341 INFO L93 Difference]: Finished difference Result 733 states and 1194 transitions. [2024-11-24 00:19:43,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:19:43,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-24 00:19:43,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:43,351 INFO L225 Difference]: With dead ends: 733 [2024-11-24 00:19:43,352 INFO L226 Difference]: Without dead ends: 450 [2024-11-24 00:19:43,355 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 00:19:43,356 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 262 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:43,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1030 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:19:43,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-24 00:19:43,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 447. [2024-11-24 00:19:43,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 373 states have (on average 1.5656836461126005) internal successors, (584), 374 states have internal predecessors, (584), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-24 00:19:43,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 726 transitions. [2024-11-24 00:19:43,437 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 726 transitions. Word has length 429 [2024-11-24 00:19:43,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:43,441 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 726 transitions. [2024-11-24 00:19:43,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:43,442 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 726 transitions. [2024-11-24 00:19:43,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 00:19:43,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:43,453 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:43,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:19:43,454 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:43,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:43,455 INFO L85 PathProgramCache]: Analyzing trace with hash 909769049, now seen corresponding path program 1 times [2024-11-24 00:19:43,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:19:43,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603641513] [2024-11-24 00:19:43,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:43,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:19:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-24 00:19:44,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:19:44,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603641513] [2024-11-24 00:19:44,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603641513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:44,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:44,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:19:44,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285963799] [2024-11-24 00:19:44,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:44,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:19:44,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:19:44,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:19:44,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:19:44,191 INFO L87 Difference]: Start difference. First operand 447 states and 726 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:44,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:44,374 INFO L93 Difference]: Finished difference Result 1230 states and 1994 transitions. [2024-11-24 00:19:44,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:19:44,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-24 00:19:44,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:44,388 INFO L225 Difference]: With dead ends: 1230 [2024-11-24 00:19:44,388 INFO L226 Difference]: Without dead ends: 786 [2024-11-24 00:19:44,390 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 00:19:44,392 INFO L435 NwaCegarLoop]: 697 mSDtfsCounter, 288 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:44,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 1134 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:19:44,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-24 00:19:44,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 782. [2024-11-24 00:19:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 694 states have (on average 1.5778097982708934) internal successors, (1095), 697 states have internal predecessors, (1095), 83 states have call successors, (83), 4 states have call predecessors, (83), 4 states have return successors, (83), 80 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-24 00:19:44,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1261 transitions. [2024-11-24 00:19:44,463 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1261 transitions. Word has length 429 [2024-11-24 00:19:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:44,465 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1261 transitions. [2024-11-24 00:19:44,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:44,466 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1261 transitions. [2024-11-24 00:19:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 00:19:44,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:44,481 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:44,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:19:44,481 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:44,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:44,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1053072221, now seen corresponding path program 1 times [2024-11-24 00:19:44,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:19:44,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377775386] [2024-11-24 00:19:44,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:44,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:19:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-24 00:19:44,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:19:44,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377775386] [2024-11-24 00:19:44,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377775386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:44,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:44,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:19:44,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217795257] [2024-11-24 00:19:44,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:44,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:19:44,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:19:44,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:19:44,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:19:44,951 INFO L87 Difference]: Start difference. First operand 782 states and 1261 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:45,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:45,105 INFO L93 Difference]: Finished difference Result 2210 states and 3560 transitions. [2024-11-24 00:19:45,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:19:45,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-24 00:19:45,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:45,119 INFO L225 Difference]: With dead ends: 2210 [2024-11-24 00:19:45,120 INFO L226 Difference]: Without dead ends: 1431 [2024-11-24 00:19:45,121 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 00:19:45,123 INFO L435 NwaCegarLoop]: 456 mSDtfsCounter, 263 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:45,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 902 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:19:45,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2024-11-24 00:19:45,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1428. [2024-11-24 00:19:45,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1300 states have (on average 1.583076923076923) internal successors, (2058), 1307 states have internal predecessors, (2058), 119 states have call successors, (119), 8 states have call predecessors, (119), 8 states have return successors, (119), 112 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-24 00:19:45,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2296 transitions. [2024-11-24 00:19:45,237 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2296 transitions. Word has length 429 [2024-11-24 00:19:45,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:45,241 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 2296 transitions. [2024-11-24 00:19:45,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:45,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2296 transitions. [2024-11-24 00:19:45,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 00:19:45,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:45,255 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:45,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:19:45,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:45,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:45,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1946558559, now seen corresponding path program 1 times [2024-11-24 00:19:45,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:19:45,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329240505] [2024-11-24 00:19:45,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:45,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:19:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:47,876 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-24 00:19:47,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:19:47,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329240505] [2024-11-24 00:19:47,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329240505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:47,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:47,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:19:47,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130087525] [2024-11-24 00:19:47,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:47,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:19:47,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:19:47,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:19:47,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:19:47,882 INFO L87 Difference]: Start difference. First operand 1428 states and 2296 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:48,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:48,785 INFO L93 Difference]: Finished difference Result 4797 states and 7678 transitions. [2024-11-24 00:19:48,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:19:48,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-24 00:19:48,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:48,807 INFO L225 Difference]: With dead ends: 4797 [2024-11-24 00:19:48,807 INFO L226 Difference]: Without dead ends: 3372 [2024-11-24 00:19:48,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:19:48,813 INFO L435 NwaCegarLoop]: 824 mSDtfsCounter, 792 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:48,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1889 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:19:48,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2024-11-24 00:19:48,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 2845. [2024-11-24 00:19:48,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2845 states, 2627 states have (on average 1.5812714122573277) internal successors, (4154), 2643 states have internal predecessors, (4154), 195 states have call successors, (195), 22 states have call predecessors, (195), 22 states have return successors, (195), 179 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-24 00:19:49,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2845 states to 2845 states and 4544 transitions. [2024-11-24 00:19:49,017 INFO L78 Accepts]: Start accepts. Automaton has 2845 states and 4544 transitions. Word has length 429 [2024-11-24 00:19:49,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:49,021 INFO L471 AbstractCegarLoop]: Abstraction has 2845 states and 4544 transitions. [2024-11-24 00:19:49,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:49,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2845 states and 4544 transitions. [2024-11-24 00:19:49,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 00:19:49,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:49,038 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:49,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:19:49,039 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:49,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:49,040 INFO L85 PathProgramCache]: Analyzing trace with hash 403438962, now seen corresponding path program 1 times [2024-11-24 00:19:49,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:19:49,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793777637] [2024-11-24 00:19:49,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:49,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:19:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-24 00:19:49,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:19:49,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793777637] [2024-11-24 00:19:49,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793777637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:49,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:49,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:19:49,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58315659] [2024-11-24 00:19:49,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:49,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:19:49,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:19:49,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:19:49,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:19:49,393 INFO L87 Difference]: Start difference. First operand 2845 states and 4544 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:49,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:49,628 INFO L93 Difference]: Finished difference Result 7931 states and 12774 transitions. [2024-11-24 00:19:49,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:19:49,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-24 00:19:49,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:49,657 INFO L225 Difference]: With dead ends: 7931 [2024-11-24 00:19:49,657 INFO L226 Difference]: Without dead ends: 5113 [2024-11-24 00:19:49,663 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 00:19:49,664 INFO L435 NwaCegarLoop]: 458 mSDtfsCounter, 292 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:49,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 888 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:19:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5113 states. [2024-11-24 00:19:49,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5113 to 4695. [2024-11-24 00:19:49,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4695 states, 4477 states have (on average 1.6216216216216217) internal successors, (7260), 4493 states have internal predecessors, (7260), 195 states have call successors, (195), 22 states have call predecessors, (195), 22 states have return successors, (195), 179 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-24 00:19:49,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4695 states to 4695 states and 7650 transitions. [2024-11-24 00:19:49,910 INFO L78 Accepts]: Start accepts. Automaton has 4695 states and 7650 transitions. Word has length 429 [2024-11-24 00:19:49,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:49,911 INFO L471 AbstractCegarLoop]: Abstraction has 4695 states and 7650 transitions. [2024-11-24 00:19:49,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 4695 states and 7650 transitions. [2024-11-24 00:19:49,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 00:19:49,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:49,929 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:49,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:19:49,929 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:49,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:49,930 INFO L85 PathProgramCache]: Analyzing trace with hash 643678708, now seen corresponding path program 1 times [2024-11-24 00:19:49,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:19:49,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222516516] [2024-11-24 00:19:49,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:49,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:19:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:51,224 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-24 00:19:51,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:19:51,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222516516] [2024-11-24 00:19:51,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222516516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:51,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:51,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:19:51,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410101144] [2024-11-24 00:19:51,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:51,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:19:51,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:19:51,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:19:51,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:19:51,227 INFO L87 Difference]: Start difference. First operand 4695 states and 7650 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:51,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:51,912 INFO L93 Difference]: Finished difference Result 16983 states and 27717 transitions. [2024-11-24 00:19:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:19:51,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-24 00:19:51,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:51,983 INFO L225 Difference]: With dead ends: 16983 [2024-11-24 00:19:51,984 INFO L226 Difference]: Without dead ends: 12315 [2024-11-24 00:19:51,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:19:51,994 INFO L435 NwaCegarLoop]: 573 mSDtfsCounter, 657 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:51,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1619 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:19:52,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12315 states. [2024-11-24 00:19:52,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12315 to 8643. [2024-11-24 00:19:52,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8643 states, 8361 states have (on average 1.639038392536778) internal successors, (13704), 8385 states have internal predecessors, (13704), 251 states have call successors, (251), 30 states have call predecessors, (251), 30 states have return successors, (251), 227 states have call predecessors, (251), 251 states have call successors, (251) [2024-11-24 00:19:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8643 states to 8643 states and 14206 transitions. [2024-11-24 00:19:52,421 INFO L78 Accepts]: Start accepts. Automaton has 8643 states and 14206 transitions. Word has length 429 [2024-11-24 00:19:52,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:52,422 INFO L471 AbstractCegarLoop]: Abstraction has 8643 states and 14206 transitions. [2024-11-24 00:19:52,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:52,423 INFO L276 IsEmpty]: Start isEmpty. Operand 8643 states and 14206 transitions. [2024-11-24 00:19:52,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 00:19:52,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:52,445 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:52,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:19:52,446 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:52,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:52,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1124758966, now seen corresponding path program 1 times [2024-11-24 00:19:52,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:19:52,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69976322] [2024-11-24 00:19:52,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:52,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:19:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:54,376 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-24 00:19:54,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:19:54,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69976322] [2024-11-24 00:19:54,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69976322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:54,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:54,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:19:54,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906031907] [2024-11-24 00:19:54,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:54,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:19:54,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:19:54,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:19:54,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:19:54,384 INFO L87 Difference]: Start difference. First operand 8643 states and 14206 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-24 00:19:56,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:56,252 INFO L93 Difference]: Finished difference Result 28617 states and 46804 transitions. [2024-11-24 00:19:56,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:19:56,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 429 [2024-11-24 00:19:56,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:56,330 INFO L225 Difference]: With dead ends: 28617 [2024-11-24 00:19:56,330 INFO L226 Difference]: Without dead ends: 20001 [2024-11-24 00:19:56,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:19:56,348 INFO L435 NwaCegarLoop]: 529 mSDtfsCounter, 958 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:56,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 2192 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 00:19:56,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20001 states. [2024-11-24 00:19:56,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20001 to 17133. [2024-11-24 00:19:57,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17133 states, 16579 states have (on average 1.635502744435732) internal successors, (27115), 16626 states have internal predecessors, (27115), 494 states have call successors, (494), 59 states have call predecessors, (494), 59 states have return successors, (494), 447 states have call predecessors, (494), 494 states have call successors, (494) [2024-11-24 00:19:57,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17133 states to 17133 states and 28103 transitions. [2024-11-24 00:19:57,073 INFO L78 Accepts]: Start accepts. Automaton has 17133 states and 28103 transitions. Word has length 429 [2024-11-24 00:19:57,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:19:57,074 INFO L471 AbstractCegarLoop]: Abstraction has 17133 states and 28103 transitions. [2024-11-24 00:19:57,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-24 00:19:57,075 INFO L276 IsEmpty]: Start isEmpty. Operand 17133 states and 28103 transitions. [2024-11-24 00:19:57,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 00:19:57,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:19:57,100 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:19:57,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:19:57,101 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:19:57,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:19:57,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1151824568, now seen corresponding path program 1 times [2024-11-24 00:19:57,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:19:57,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990785096] [2024-11-24 00:19:57,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:19:57,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:19:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:19:58,726 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-24 00:19:58,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:19:58,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990785096] [2024-11-24 00:19:58,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990785096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:19:58,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:19:58,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:19:58,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419905776] [2024-11-24 00:19:58,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:19:58,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:19:58,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:19:58,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:19:58,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:19:58,732 INFO L87 Difference]: Start difference. First operand 17133 states and 28103 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:19:59,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:19:59,464 INFO L93 Difference]: Finished difference Result 34201 states and 56102 transitions. [2024-11-24 00:19:59,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:19:59,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-24 00:19:59,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:19:59,524 INFO L225 Difference]: With dead ends: 34201 [2024-11-24 00:19:59,524 INFO L226 Difference]: Without dead ends: 17095 [2024-11-24 00:19:59,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:19:59,552 INFO L435 NwaCegarLoop]: 713 mSDtfsCounter, 477 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:19:59,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1162 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:19:59,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17095 states. [2024-11-24 00:20:00,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17095 to 14801. [2024-11-24 00:20:00,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14801 states, 14451 states have (on average 1.6554563698013978) internal successors, (23923), 14474 states have internal predecessors, (23923), 310 states have call successors, (310), 39 states have call predecessors, (310), 39 states have return successors, (310), 287 states have call predecessors, (310), 310 states have call successors, (310) [2024-11-24 00:20:00,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14801 states to 14801 states and 24543 transitions. [2024-11-24 00:20:00,262 INFO L78 Accepts]: Start accepts. Automaton has 14801 states and 24543 transitions. Word has length 429 [2024-11-24 00:20:00,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:20:00,263 INFO L471 AbstractCegarLoop]: Abstraction has 14801 states and 24543 transitions. [2024-11-24 00:20:00,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:20:00,264 INFO L276 IsEmpty]: Start isEmpty. Operand 14801 states and 24543 transitions. [2024-11-24 00:20:00,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-24 00:20:00,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:20:00,286 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:20:00,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:20:00,286 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:20:00,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:20:00,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1953237118, now seen corresponding path program 1 times [2024-11-24 00:20:00,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:20:00,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437142559] [2024-11-24 00:20:00,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:00,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:20:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:05,090 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 18 proven. 162 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-24 00:20:05,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:20:05,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437142559] [2024-11-24 00:20:05,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437142559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:20:05,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962965671] [2024-11-24 00:20:05,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:05,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:20:05,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:20:05,093 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:20:05,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:20:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:05,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:20:05,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:20:06,133 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3798 proven. 27 refuted. 0 times theorem prover too weak. 3495 trivial. 0 not checked. [2024-11-24 00:20:06,133 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:20:06,777 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 153 proven. 27 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-24 00:20:06,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962965671] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:20:06,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:20:06,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-11-24 00:20:06,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741748451] [2024-11-24 00:20:06,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:20:06,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:20:06,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:20:06,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:20:06,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:20:06,782 INFO L87 Difference]: Start difference. First operand 14801 states and 24543 transitions. Second operand has 15 states, 15 states have (on average 14.8) internal successors, (222), 15 states have internal predecessors, (222), 6 states have call successors, (136), 3 states have call predecessors, (136), 6 states have return successors, (137), 6 states have call predecessors, (137), 6 states have call successors, (137) [2024-11-24 00:20:08,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:20:08,218 INFO L93 Difference]: Finished difference Result 22753 states and 37540 transitions. [2024-11-24 00:20:08,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:20:08,220 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 14.8) internal successors, (222), 15 states have internal predecessors, (222), 6 states have call successors, (136), 3 states have call predecessors, (136), 6 states have return successors, (137), 6 states have call predecessors, (137), 6 states have call successors, (137) Word has length 430 [2024-11-24 00:20:08,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:20:08,248 INFO L225 Difference]: With dead ends: 22753 [2024-11-24 00:20:08,252 INFO L226 Difference]: Without dead ends: 7979 [2024-11-24 00:20:08,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 875 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:20:08,283 INFO L435 NwaCegarLoop]: 374 mSDtfsCounter, 924 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:20:08,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1621 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:20:08,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7979 states. [2024-11-24 00:20:08,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7979 to 7827. [2024-11-24 00:20:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7827 states, 7545 states have (on average 1.6343273691186215) internal successors, (12331), 7555 states have internal predecessors, (12331), 230 states have call successors, (230), 51 states have call predecessors, (230), 51 states have return successors, (230), 220 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-24 00:20:08,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7827 states to 7827 states and 12791 transitions. [2024-11-24 00:20:08,594 INFO L78 Accepts]: Start accepts. Automaton has 7827 states and 12791 transitions. Word has length 430 [2024-11-24 00:20:08,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:20:08,596 INFO L471 AbstractCegarLoop]: Abstraction has 7827 states and 12791 transitions. [2024-11-24 00:20:08,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.8) internal successors, (222), 15 states have internal predecessors, (222), 6 states have call successors, (136), 3 states have call predecessors, (136), 6 states have return successors, (137), 6 states have call predecessors, (137), 6 states have call successors, (137) [2024-11-24 00:20:08,596 INFO L276 IsEmpty]: Start isEmpty. Operand 7827 states and 12791 transitions. [2024-11-24 00:20:08,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-24 00:20:08,610 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:20:08,610 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:20:08,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:20:08,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 00:20:08,811 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:20:08,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:20:08,813 INFO L85 PathProgramCache]: Analyzing trace with hash 258825756, now seen corresponding path program 1 times [2024-11-24 00:20:08,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:20:08,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78150917] [2024-11-24 00:20:08,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:08,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:20:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:09,580 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-24 00:20:09,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:20:09,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78150917] [2024-11-24 00:20:09,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78150917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:20:09,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:20:09,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:20:09,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917222167] [2024-11-24 00:20:09,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:20:09,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:20:09,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:20:09,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:20:09,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:20:09,583 INFO L87 Difference]: Start difference. First operand 7827 states and 12791 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:20:10,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:20:10,291 INFO L93 Difference]: Finished difference Result 29301 states and 48148 transitions. [2024-11-24 00:20:10,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:20:10,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 431 [2024-11-24 00:20:10,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:20:10,347 INFO L225 Difference]: With dead ends: 29301 [2024-11-24 00:20:10,348 INFO L226 Difference]: Without dead ends: 21477 [2024-11-24 00:20:10,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:20:10,365 INFO L435 NwaCegarLoop]: 656 mSDtfsCounter, 601 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:20:10,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1561 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:20:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21477 states. [2024-11-24 00:20:11,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21477 to 15649. [2024-11-24 00:20:11,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15649 states, 15086 states have (on average 1.6276017499668567) internal successors, (24554), 15106 states have internal predecessors, (24554), 460 states have call successors, (460), 102 states have call predecessors, (460), 102 states have return successors, (460), 440 states have call predecessors, (460), 460 states have call successors, (460) [2024-11-24 00:20:11,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15649 states to 15649 states and 25474 transitions. [2024-11-24 00:20:11,229 INFO L78 Accepts]: Start accepts. Automaton has 15649 states and 25474 transitions. Word has length 431 [2024-11-24 00:20:11,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:20:11,230 INFO L471 AbstractCegarLoop]: Abstraction has 15649 states and 25474 transitions. [2024-11-24 00:20:11,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:20:11,230 INFO L276 IsEmpty]: Start isEmpty. Operand 15649 states and 25474 transitions. [2024-11-24 00:20:11,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-24 00:20:11,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:20:11,251 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:20:11,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:20:11,251 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:20:11,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:20:11,252 INFO L85 PathProgramCache]: Analyzing trace with hash 828940149, now seen corresponding path program 1 times [2024-11-24 00:20:11,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:20:11,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554966600] [2024-11-24 00:20:11,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:11,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:20:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:12,452 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-24 00:20:12,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:20:12,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554966600] [2024-11-24 00:20:12,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554966600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:20:12,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:20:12,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:20:12,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990884016] [2024-11-24 00:20:12,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:20:12,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:20:12,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:20:12,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:20:12,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:20:12,455 INFO L87 Difference]: Start difference. First operand 15649 states and 25474 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:20:13,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:20:13,044 INFO L93 Difference]: Finished difference Result 40293 states and 65706 transitions. [2024-11-24 00:20:13,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:20:13,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 432 [2024-11-24 00:20:13,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:20:13,116 INFO L225 Difference]: With dead ends: 40293 [2024-11-24 00:20:13,117 INFO L226 Difference]: Without dead ends: 24647 [2024-11-24 00:20:13,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:20:13,140 INFO L435 NwaCegarLoop]: 512 mSDtfsCounter, 456 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:20:13,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1180 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:20:13,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24647 states. [2024-11-24 00:20:13,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24647 to 17633. [2024-11-24 00:20:13,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17633 states, 17070 states have (on average 1.6333919156414762) internal successors, (27882), 17090 states have internal predecessors, (27882), 460 states have call successors, (460), 102 states have call predecessors, (460), 102 states have return successors, (460), 440 states have call predecessors, (460), 460 states have call successors, (460) [2024-11-24 00:20:13,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17633 states to 17633 states and 28802 transitions. [2024-11-24 00:20:13,823 INFO L78 Accepts]: Start accepts. Automaton has 17633 states and 28802 transitions. Word has length 432 [2024-11-24 00:20:13,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:20:13,826 INFO L471 AbstractCegarLoop]: Abstraction has 17633 states and 28802 transitions. [2024-11-24 00:20:13,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:20:13,826 INFO L276 IsEmpty]: Start isEmpty. Operand 17633 states and 28802 transitions. [2024-11-24 00:20:13,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-24 00:20:13,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:20:13,850 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:20:13,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:20:13,850 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:20:13,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:20:13,851 INFO L85 PathProgramCache]: Analyzing trace with hash 756553591, now seen corresponding path program 1 times [2024-11-24 00:20:13,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:20:13,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421354111] [2024-11-24 00:20:13,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:20:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:16,413 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 24 proven. 156 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-24 00:20:16,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:20:16,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421354111] [2024-11-24 00:20:16,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421354111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:20:16,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072834919] [2024-11-24 00:20:16,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:16,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:20:16,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:20:16,416 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:20:16,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:20:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:16,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:20:17,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:20:18,012 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 2080 proven. 150 refuted. 0 times theorem prover too weak. 5090 trivial. 0 not checked. [2024-11-24 00:20:18,013 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:20:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 30 proven. 150 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-24 00:20:18,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072834919] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:20:18,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:20:18,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-24 00:20:18,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902413502] [2024-11-24 00:20:18,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:20:18,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:20:18,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:20:18,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:20:18,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:20:18,760 INFO L87 Difference]: Start difference. First operand 17633 states and 28802 transitions. Second operand has 8 states, 8 states have (on average 24.375) internal successors, (195), 8 states have internal predecessors, (195), 3 states have call successors, (163), 2 states have call predecessors, (163), 4 states have return successors, (165), 3 states have call predecessors, (165), 3 states have call successors, (165) [2024-11-24 00:20:20,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:20:20,094 INFO L93 Difference]: Finished difference Result 25563 states and 41218 transitions. [2024-11-24 00:20:20,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:20:20,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.375) internal successors, (195), 8 states have internal predecessors, (195), 3 states have call successors, (163), 2 states have call predecessors, (163), 4 states have return successors, (165), 3 states have call predecessors, (165), 3 states have call successors, (165) Word has length 432 [2024-11-24 00:20:20,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:20:20,127 INFO L225 Difference]: With dead ends: 25563 [2024-11-24 00:20:20,127 INFO L226 Difference]: Without dead ends: 7933 [2024-11-24 00:20:20,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 861 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:20:20,143 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 564 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:20:20,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 1060 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:20:20,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2024-11-24 00:20:20,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7881. [2024-11-24 00:20:20,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7881 states, 7366 states have (on average 1.5620418137388) internal successors, (11506), 7378 states have internal predecessors, (11506), 396 states have call successors, (396), 118 states have call predecessors, (396), 118 states have return successors, (396), 384 states have call predecessors, (396), 396 states have call successors, (396) [2024-11-24 00:20:20,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7881 states to 7881 states and 12298 transitions. [2024-11-24 00:20:20,614 INFO L78 Accepts]: Start accepts. Automaton has 7881 states and 12298 transitions. Word has length 432 [2024-11-24 00:20:20,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:20:20,615 INFO L471 AbstractCegarLoop]: Abstraction has 7881 states and 12298 transitions. [2024-11-24 00:20:20,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.375) internal successors, (195), 8 states have internal predecessors, (195), 3 states have call successors, (163), 2 states have call predecessors, (163), 4 states have return successors, (165), 3 states have call predecessors, (165), 3 states have call successors, (165) [2024-11-24 00:20:20,615 INFO L276 IsEmpty]: Start isEmpty. Operand 7881 states and 12298 transitions. [2024-11-24 00:20:20,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-24 00:20:20,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:20:20,625 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:20:20,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:20:20,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:20:20,830 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:20:20,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:20:20,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1878960023, now seen corresponding path program 1 times [2024-11-24 00:20:20,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:20:20,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518156290] [2024-11-24 00:20:20,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:20,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:20:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:25,653 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 36 proven. 144 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-24 00:20:25,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:20:25,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518156290] [2024-11-24 00:20:25,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518156290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:20:25,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257925026] [2024-11-24 00:20:25,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:25,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:20:25,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:20:25,657 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:20:25,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:20:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:26,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:20:26,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:20:27,071 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 2388 proven. 144 refuted. 0 times theorem prover too weak. 4788 trivial. 0 not checked. [2024-11-24 00:20:27,071 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:20:27,932 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 36 proven. 144 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-24 00:20:27,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257925026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:20:27,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:20:27,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 9] total 16 [2024-11-24 00:20:27,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883032298] [2024-11-24 00:20:27,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:20:27,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:20:27,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:20:27,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:20:27,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:20:27,936 INFO L87 Difference]: Start difference. First operand 7881 states and 12298 transitions. Second operand has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2024-11-24 00:20:32,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:20:32,169 INFO L93 Difference]: Finished difference Result 22091 states and 34117 transitions. [2024-11-24 00:20:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-24 00:20:32,170 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) Word has length 432 [2024-11-24 00:20:32,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:20:32,211 INFO L225 Difference]: With dead ends: 22091 [2024-11-24 00:20:32,211 INFO L226 Difference]: Without dead ends: 14213 [2024-11-24 00:20:32,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 906 GetRequests, 858 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=543, Invalid=1809, Unknown=0, NotChecked=0, Total=2352 [2024-11-24 00:20:32,221 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 1371 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:20:32,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 3126 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 00:20:32,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14213 states. [2024-11-24 00:20:33,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14213 to 13800. [2024-11-24 00:20:33,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13800 states, 12722 states have (on average 1.530105329350731) internal successors, (19466), 12747 states have internal predecessors, (19466), 816 states have call successors, (816), 261 states have call predecessors, (816), 261 states have return successors, (816), 791 states have call predecessors, (816), 816 states have call successors, (816) [2024-11-24 00:20:33,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13800 states to 13800 states and 21098 transitions. [2024-11-24 00:20:33,068 INFO L78 Accepts]: Start accepts. Automaton has 13800 states and 21098 transitions. Word has length 432 [2024-11-24 00:20:33,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:20:33,069 INFO L471 AbstractCegarLoop]: Abstraction has 13800 states and 21098 transitions. [2024-11-24 00:20:33,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2024-11-24 00:20:33,070 INFO L276 IsEmpty]: Start isEmpty. Operand 13800 states and 21098 transitions. [2024-11-24 00:20:33,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-24 00:20:33,083 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:20:33,083 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:20:33,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:20:33,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:20:33,288 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:20:33,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:20:33,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1142310567, now seen corresponding path program 1 times [2024-11-24 00:20:33,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:20:33,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111678190] [2024-11-24 00:20:33,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:33,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:20:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 153 proven. 27 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-24 00:20:36,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:20:36,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111678190] [2024-11-24 00:20:36,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111678190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:20:36,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119605489] [2024-11-24 00:20:36,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:20:36,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:20:36,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:20:36,288 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:20:36,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:20:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:20:36,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:20:36,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:20:38,645 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 4598 proven. 210 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2024-11-24 00:20:38,646 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:20:39,985 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 225 proven. 132 refuted. 0 times theorem prover too weak. 6963 trivial. 0 not checked. [2024-11-24 00:20:39,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119605489] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:20:39,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:20:39,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 15, 13] total 28 [2024-11-24 00:20:39,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062156010] [2024-11-24 00:20:39,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:20:39,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-24 00:20:39,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:20:39,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-24 00:20:39,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:20:39,989 INFO L87 Difference]: Start difference. First operand 13800 states and 21098 transitions. Second operand has 28 states, 27 states have (on average 11.925925925925926) internal successors, (322), 27 states have internal predecessors, (322), 8 states have call successors, (121), 4 states have call predecessors, (121), 8 states have return successors, (123), 7 states have call predecessors, (123), 8 states have call successors, (123) [2024-11-24 00:20:58,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:20:58,368 INFO L93 Difference]: Finished difference Result 75070 states and 113525 transitions. [2024-11-24 00:20:58,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2024-11-24 00:20:58,368 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 11.925925925925926) internal successors, (322), 27 states have internal predecessors, (322), 8 states have call successors, (121), 4 states have call predecessors, (121), 8 states have return successors, (123), 7 states have call predecessors, (123), 8 states have call successors, (123) Word has length 433 [2024-11-24 00:20:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:20:58,557 INFO L225 Difference]: With dead ends: 75070 [2024-11-24 00:20:58,557 INFO L226 Difference]: Without dead ends: 61348 [2024-11-24 00:20:58,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1014 GetRequests, 858 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9618 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=5132, Invalid=19674, Unknown=0, NotChecked=0, Total=24806 [2024-11-24 00:20:58,587 INFO L435 NwaCegarLoop]: 810 mSDtfsCounter, 7277 mSDsluCounter, 3552 mSDsCounter, 0 mSdLazyCounter, 3899 mSolverCounterSat, 2915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7277 SdHoareTripleChecker+Valid, 4362 SdHoareTripleChecker+Invalid, 6814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2915 IncrementalHoareTripleChecker+Valid, 3899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:20:58,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7277 Valid, 4362 Invalid, 6814 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2915 Valid, 3899 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-24 00:20:58,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61348 states. [2024-11-24 00:21:00,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61348 to 24631. [2024-11-24 00:21:00,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24631 states, 23343 states have (on average 1.580559482500107) internal successors, (36895), 23372 states have internal predecessors, (36895), 937 states have call successors, (937), 350 states have call predecessors, (937), 350 states have return successors, (937), 908 states have call predecessors, (937), 937 states have call successors, (937) [2024-11-24 00:21:00,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24631 states to 24631 states and 38769 transitions. [2024-11-24 00:21:00,515 INFO L78 Accepts]: Start accepts. Automaton has 24631 states and 38769 transitions. Word has length 433 [2024-11-24 00:21:00,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:00,516 INFO L471 AbstractCegarLoop]: Abstraction has 24631 states and 38769 transitions. [2024-11-24 00:21:00,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 11.925925925925926) internal successors, (322), 27 states have internal predecessors, (322), 8 states have call successors, (121), 4 states have call predecessors, (121), 8 states have return successors, (123), 7 states have call predecessors, (123), 8 states have call successors, (123) [2024-11-24 00:21:00,517 INFO L276 IsEmpty]: Start isEmpty. Operand 24631 states and 38769 transitions. [2024-11-24 00:21:00,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-24 00:21:00,533 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:00,533 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:00,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:21:00,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 00:21:00,734 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:21:00,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1706120857, now seen corresponding path program 1 times [2024-11-24 00:21:00,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:00,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455163879] [2024-11-24 00:21:00,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:00,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-24 00:21:10,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:10,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455163879] [2024-11-24 00:21:10,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455163879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:21:10,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:21:10,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:21:10,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650883985] [2024-11-24 00:21:10,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:21:10,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:21:10,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:10,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:21:10,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:21:10,471 INFO L87 Difference]: Start difference. First operand 24631 states and 38769 transitions. Second operand has 13 states, 13 states have (on average 10.076923076923077) internal successors, (131), 13 states have internal predecessors, (131), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:21:29,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:21:29,093 INFO L93 Difference]: Finished difference Result 103729 states and 163733 transitions. [2024-11-24 00:21:29,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:21:29,094 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.076923076923077) internal successors, (131), 13 states have internal predecessors, (131), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 433 [2024-11-24 00:21:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:21:29,440 INFO L225 Difference]: With dead ends: 103729 [2024-11-24 00:21:29,440 INFO L226 Difference]: Without dead ends: 90827 [2024-11-24 00:21:29,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:21:29,460 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 4217 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 2903 mSolverCounterSat, 705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4217 SdHoareTripleChecker+Valid, 3328 SdHoareTripleChecker+Invalid, 3608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 705 IncrementalHoareTripleChecker+Valid, 2903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:21:29,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4217 Valid, 3328 Invalid, 3608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [705 Valid, 2903 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2024-11-24 00:21:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90827 states. [2024-11-24 00:21:32,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90827 to 44351. [2024-11-24 00:21:32,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44351 states, 42698 states have (on average 1.5933767389573281) internal successors, (68034), 42743 states have internal predecessors, (68034), 1177 states have call successors, (1177), 475 states have call predecessors, (1177), 475 states have return successors, (1177), 1132 states have call predecessors, (1177), 1177 states have call successors, (1177) [2024-11-24 00:21:33,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44351 states to 44351 states and 70388 transitions. [2024-11-24 00:21:33,035 INFO L78 Accepts]: Start accepts. Automaton has 44351 states and 70388 transitions. Word has length 433 [2024-11-24 00:21:33,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:21:33,036 INFO L471 AbstractCegarLoop]: Abstraction has 44351 states and 70388 transitions. [2024-11-24 00:21:33,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.076923076923077) internal successors, (131), 13 states have internal predecessors, (131), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-24 00:21:33,036 INFO L276 IsEmpty]: Start isEmpty. Operand 44351 states and 70388 transitions. [2024-11-24 00:21:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-24 00:21:33,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:21:33,058 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:21:33,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:21:33,058 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:21:33,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:21:33,059 INFO L85 PathProgramCache]: Analyzing trace with hash 665618405, now seen corresponding path program 1 times [2024-11-24 00:21:33,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:21:33,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097280448] [2024-11-24 00:21:33,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:33,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:21:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:39,059 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 72 proven. 108 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-24 00:21:39,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:21:39,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097280448] [2024-11-24 00:21:39,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097280448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:21:39,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702618183] [2024-11-24 00:21:39,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:21:39,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:21:39,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:21:39,061 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:21:39,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4722836-06b5-4232-9e4f-604d68fed5fc/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:21:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:21:39,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 00:21:39,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:21:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 4541 proven. 294 refuted. 0 times theorem prover too weak. 2485 trivial. 0 not checked. [2024-11-24 00:21:44,271 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:21:46,571 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 90 proven. 90 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-24 00:21:46,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702618183] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:21:46,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:21:46,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 10] total 40 [2024-11-24 00:21:46,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916624000] [2024-11-24 00:21:46,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:21:46,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-24 00:21:46,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:21:46,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-24 00:21:46,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1395, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 00:21:46,576 INFO L87 Difference]: Start difference. First operand 44351 states and 70388 transitions. Second operand has 40 states, 39 states have (on average 9.076923076923077) internal successors, (354), 39 states have internal predecessors, (354), 9 states have call successors, (164), 4 states have call predecessors, (164), 7 states have return successors, (165), 8 states have call predecessors, (165), 9 states have call successors, (165) [2024-11-24 00:21:57,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:22:02,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:22:09,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:22:14,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:22:24,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:22:29,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:22:34,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:22:41,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:22:45,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:22:49,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:22:51,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:22:59,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:03,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:07,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:09,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:14,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:21,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:25,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:29,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:33,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:37,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:41,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:44,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:46,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:52,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:23:54,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:00,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:04,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:08,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:12,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:16,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:20,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:24,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:28,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:32,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:36,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:39,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:43,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:47,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:52,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:54,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:24:59,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:25:03,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:25:07,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:25:11,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:25:14,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:25:18,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:25:24,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:25:25,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:25:56,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:26:00,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]