./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-75.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_173cb7b0-26ff-4f8c-8497-574667177afe/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/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_173cb7b0-26ff-4f8c-8497-574667177afe/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-75.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/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_173cb7b0-26ff-4f8c-8497-574667177afe/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 5f27064a0b5796ba4fcefa469388f6a0b44b51572a6c95971fa540335b609a62 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:27:33,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:27:33,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:27:33,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:27:33,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:27:33,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:27:33,950 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:27:33,951 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:27:33,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:27:33,952 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:27:33,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:27:33,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:27:33,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:27:33,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:27:33,954 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:27:33,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:27:33,954 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:27:33,955 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:27:33,955 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:27:33,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:27:33,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:27:33,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:27:33,956 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:27:33,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:27:33,957 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:27:33,957 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:27:33,957 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:27:33,957 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:27:33,957 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:27:33,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:27:33,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:27:33,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:27:33,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:27:33,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:27:33,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:27:33,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:27:33,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:27:33,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:27:33,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:27:33,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:27:33,960 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:27:33,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:27:33,960 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:27:33,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:27:33,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:27:33,961 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:27:33,961 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:27:33,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:27:33,961 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_173cb7b0-26ff-4f8c-8497-574667177afe/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 -> 5f27064a0b5796ba4fcefa469388f6a0b44b51572a6c95971fa540335b609a62 [2024-11-23 18:27:34,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:27:34,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:27:34,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:27:34,315 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:27:34,316 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:27:34,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-75.i [2024-11-23 18:27:37,371 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/bin/uautomizer-verify-LYvppIcaGC/data/89b43b813/82d2ed659bdc474982001ff17c3afd72/FLAG38a1f03ce [2024-11-23 18:27:37,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:27:37,790 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-75.i [2024-11-23 18:27:37,804 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/bin/uautomizer-verify-LYvppIcaGC/data/89b43b813/82d2ed659bdc474982001ff17c3afd72/FLAG38a1f03ce [2024-11-23 18:27:37,819 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/bin/uautomizer-verify-LYvppIcaGC/data/89b43b813/82d2ed659bdc474982001ff17c3afd72 [2024-11-23 18:27:37,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:27:37,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:27:37,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:27:37,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:27:37,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:27:37,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:27:37" (1/1) ... [2024-11-23 18:27:37,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ff2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:37, skipping insertion in model container [2024-11-23 18:27:37,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:27:37" (1/1) ... [2024-11-23 18:27:37,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:27:38,083 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_173cb7b0-26ff-4f8c-8497-574667177afe/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-75.i[916,929] [2024-11-23 18:27:38,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:27:38,314 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:27:38,335 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_173cb7b0-26ff-4f8c-8497-574667177afe/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-75.i[916,929] [2024-11-23 18:27:38,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:27:38,539 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:27:38,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38 WrapperNode [2024-11-23 18:27:38,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:27:38,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:27:38,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:27:38,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:27:38,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,710 INFO L138 Inliner]: procedures = 26, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1115 [2024-11-23 18:27:38,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:27:38,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:27:38,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:27:38,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:27:38,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,733 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,781 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:27:38,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,784 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,827 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,899 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:27:38,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:27:38,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:27:38,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:27:38,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (1/1) ... [2024-11-23 18:27:38,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:27:38,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:38,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:27:38,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173cb7b0-26ff-4f8c-8497-574667177afe/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:27:38,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:27:38,989 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:27:38,989 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:27:38,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:27:38,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:27:38,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:27:39,186 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:27:39,187 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:27:41,176 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-23 18:27:41,176 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:27:41,208 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:27:41,209 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:27:41,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:27:41 BoogieIcfgContainer [2024-11-23 18:27:41,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:27:41,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:27:41,215 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:27:41,225 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:27:41,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:27:37" (1/3) ... [2024-11-23 18:27:41,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e3eeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:27:41, skipping insertion in model container [2024-11-23 18:27:41,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:38" (2/3) ... [2024-11-23 18:27:41,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e3eeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:27:41, skipping insertion in model container [2024-11-23 18:27:41,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:27:41" (3/3) ... [2024-11-23 18:27:41,227 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-75.i [2024-11-23 18:27:41,243 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:27:41,246 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-75.i that has 2 procedures, 445 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:27:41,340 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:27:41,355 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;@3e648335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:27:41,356 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:27:41,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 445 states, 319 states have (on average 1.5642633228840126) internal successors, (499), 320 states have internal predecessors, (499), 123 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-23 18:27:41,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2024-11-23 18:27:41,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:41,424 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:41,425 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:41,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:41,430 INFO L85 PathProgramCache]: Analyzing trace with hash -967602880, now seen corresponding path program 1 times [2024-11-23 18:27:41,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:41,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791629097] [2024-11-23 18:27:41,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:41,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:42,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:27:42,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:42,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791629097] [2024-11-23 18:27:42,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791629097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:42,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:42,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:27:42,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963327690] [2024-11-23 18:27:42,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:42,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:27:42,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:42,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:27:42,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:27:42,947 INFO L87 Difference]: Start difference. First operand has 445 states, 319 states have (on average 1.5642633228840126) internal successors, (499), 320 states have internal predecessors, (499), 123 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) Second operand has 2 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:43,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:43,092 INFO L93 Difference]: Finished difference Result 883 states and 1607 transitions. [2024-11-23 18:27:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:27:43,094 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 787 [2024-11-23 18:27:43,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:43,112 INFO L225 Difference]: With dead ends: 883 [2024-11-23 18:27:43,113 INFO L226 Difference]: Without dead ends: 441 [2024-11-23 18:27:43,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:27:43,128 INFO L435 NwaCegarLoop]: 737 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, 737 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:43,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:27:43,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-23 18:27:43,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-11-23 18:27:43,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 316 states have (on average 1.5537974683544304) internal successors, (491), 316 states have internal predecessors, (491), 123 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-23 18:27:43,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 737 transitions. [2024-11-23 18:27:43,274 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 737 transitions. Word has length 787 [2024-11-23 18:27:43,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:43,280 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 737 transitions. [2024-11-23 18:27:43,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 737 transitions. [2024-11-23 18:27:43,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2024-11-23 18:27:43,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:43,311 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:43,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:27:43,312 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:43,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:43,314 INFO L85 PathProgramCache]: Analyzing trace with hash 889802045, now seen corresponding path program 1 times [2024-11-23 18:27:43,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:43,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112349237] [2024-11-23 18:27:43,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:43,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:44,808 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:27:44,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:44,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112349237] [2024-11-23 18:27:44,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112349237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:44,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:44,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:27:44,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846288876] [2024-11-23 18:27:44,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:44,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:27:44,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:44,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:27:44,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:44,817 INFO L87 Difference]: Start difference. First operand 441 states and 737 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:44,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:44,921 INFO L93 Difference]: Finished difference Result 880 states and 1473 transitions. [2024-11-23 18:27:44,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:27:44,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 788 [2024-11-23 18:27:44,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:44,934 INFO L225 Difference]: With dead ends: 880 [2024-11-23 18:27:44,937 INFO L226 Difference]: Without dead ends: 442 [2024-11-23 18:27:44,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:44,939 INFO L435 NwaCegarLoop]: 736 mSDtfsCounter, 0 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:44,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1464 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:27:44,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-23 18:27:44,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2024-11-23 18:27:44,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 317 states have (on average 1.5520504731861198) internal successors, (492), 317 states have internal predecessors, (492), 123 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-23 18:27:45,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 738 transitions. [2024-11-23 18:27:45,004 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 738 transitions. Word has length 788 [2024-11-23 18:27:45,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:45,006 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 738 transitions. [2024-11-23 18:27:45,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:45,007 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 738 transitions. [2024-11-23 18:27:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-23 18:27:45,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:45,015 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:45,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:27:45,016 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:45,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:45,016 INFO L85 PathProgramCache]: Analyzing trace with hash -186216671, now seen corresponding path program 1 times [2024-11-23 18:27:45,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:45,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402645010] [2024-11-23 18:27:45,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:45,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:45,758 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:27:45,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:45,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402645010] [2024-11-23 18:27:45,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402645010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:45,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:45,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:27:45,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765848218] [2024-11-23 18:27:45,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:45,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:27:45,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:45,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:27:45,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:45,766 INFO L87 Difference]: Start difference. First operand 442 states and 738 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:45,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:45,937 INFO L93 Difference]: Finished difference Result 1318 states and 2204 transitions. [2024-11-23 18:27:45,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:27:45,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 789 [2024-11-23 18:27:45,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:45,952 INFO L225 Difference]: With dead ends: 1318 [2024-11-23 18:27:45,954 INFO L226 Difference]: Without dead ends: 879 [2024-11-23 18:27:45,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:45,959 INFO L435 NwaCegarLoop]: 1194 mSDtfsCounter, 715 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1922 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:45,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1922 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:27:45,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2024-11-23 18:27:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 874. [2024-11-23 18:27:46,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 625 states have (on average 1.5488) internal successors, (968), 625 states have internal predecessors, (968), 246 states have call successors, (246), 2 states have call predecessors, (246), 2 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2024-11-23 18:27:46,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1460 transitions. [2024-11-23 18:27:46,201 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1460 transitions. Word has length 789 [2024-11-23 18:27:46,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:46,204 INFO L471 AbstractCegarLoop]: Abstraction has 874 states and 1460 transitions. [2024-11-23 18:27:46,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:46,205 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1460 transitions. [2024-11-23 18:27:46,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-23 18:27:46,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:46,231 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:46,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:27:46,231 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:46,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:46,232 INFO L85 PathProgramCache]: Analyzing trace with hash -604083811, now seen corresponding path program 1 times [2024-11-23 18:27:46,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:46,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888023698] [2024-11-23 18:27:46,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:46,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:46,811 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:27:46,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:46,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888023698] [2024-11-23 18:27:46,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888023698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:46,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:46,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:27:46,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127591855] [2024-11-23 18:27:46,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:46,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:27:46,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:46,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:27:46,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:46,816 INFO L87 Difference]: Start difference. First operand 874 states and 1460 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:46,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:46,961 INFO L93 Difference]: Finished difference Result 2156 states and 3602 transitions. [2024-11-23 18:27:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:27:46,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 789 [2024-11-23 18:27:46,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:46,975 INFO L225 Difference]: With dead ends: 2156 [2024-11-23 18:27:46,975 INFO L226 Difference]: Without dead ends: 1285 [2024-11-23 18:27:46,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:46,979 INFO L435 NwaCegarLoop]: 772 mSDtfsCounter, 333 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:46,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1488 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:27:46,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2024-11-23 18:27:47,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1281. [2024-11-23 18:27:47,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 974 states have (on average 1.570841889117043) internal successors, (1530), 976 states have internal predecessors, (1530), 302 states have call successors, (302), 4 states have call predecessors, (302), 4 states have return successors, (302), 300 states have call predecessors, (302), 302 states have call successors, (302) [2024-11-23 18:27:47,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 2134 transitions. [2024-11-23 18:27:47,250 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 2134 transitions. Word has length 789 [2024-11-23 18:27:47,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:47,251 INFO L471 AbstractCegarLoop]: Abstraction has 1281 states and 2134 transitions. [2024-11-23 18:27:47,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:47,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 2134 transitions. [2024-11-23 18:27:47,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-23 18:27:47,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:47,261 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:47,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:27:47,262 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:47,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:47,262 INFO L85 PathProgramCache]: Analyzing trace with hash -602931941, now seen corresponding path program 1 times [2024-11-23 18:27:47,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:47,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692482003] [2024-11-23 18:27:47,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:47,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:27:47,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:47,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692482003] [2024-11-23 18:27:47,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692482003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:47,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:47,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:27:47,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324790046] [2024-11-23 18:27:47,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:47,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:27:47,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:47,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:27:47,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:47,825 INFO L87 Difference]: Start difference. First operand 1281 states and 2134 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:48,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:48,030 INFO L93 Difference]: Finished difference Result 3167 states and 5226 transitions. [2024-11-23 18:27:48,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:27:48,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 789 [2024-11-23 18:27:48,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:48,048 INFO L225 Difference]: With dead ends: 3167 [2024-11-23 18:27:48,048 INFO L226 Difference]: Without dead ends: 1889 [2024-11-23 18:27:48,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:48,054 INFO L435 NwaCegarLoop]: 976 mSDtfsCounter, 310 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:48,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1703 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:27:48,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2024-11-23 18:27:48,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1885. [2024-11-23 18:27:48,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1885 states, 1338 states have (on average 1.5037369207772795) internal successors, (2012), 1344 states have internal predecessors, (2012), 538 states have call successors, (538), 8 states have call predecessors, (538), 8 states have return successors, (538), 532 states have call predecessors, (538), 538 states have call successors, (538) [2024-11-23 18:27:48,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 3088 transitions. [2024-11-23 18:27:48,401 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 3088 transitions. Word has length 789 [2024-11-23 18:27:48,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:48,403 INFO L471 AbstractCegarLoop]: Abstraction has 1885 states and 3088 transitions. [2024-11-23 18:27:48,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 3088 transitions. [2024-11-23 18:27:48,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-23 18:27:48,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:48,413 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:48,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:27:48,413 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:48,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:48,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1886597021, now seen corresponding path program 1 times [2024-11-23 18:27:48,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:48,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121806695] [2024-11-23 18:27:48,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:48,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:48,897 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:27:48,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:48,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121806695] [2024-11-23 18:27:48,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121806695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:48,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:48,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:27:48,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910000212] [2024-11-23 18:27:48,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:48,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:27:48,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:48,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:27:48,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:48,902 INFO L87 Difference]: Start difference. First operand 1885 states and 3088 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:49,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:49,167 INFO L93 Difference]: Finished difference Result 4913 states and 7974 transitions. [2024-11-23 18:27:49,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:27:49,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 789 [2024-11-23 18:27:49,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:49,199 INFO L225 Difference]: With dead ends: 4913 [2024-11-23 18:27:49,200 INFO L226 Difference]: Without dead ends: 3031 [2024-11-23 18:27:49,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:49,209 INFO L435 NwaCegarLoop]: 971 mSDtfsCounter, 299 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:49,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1696 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:27:49,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2024-11-23 18:27:49,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 3025. [2024-11-23 18:27:49,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 2006 states have (on average 1.431704885343968) internal successors, (2872), 2020 states have internal predecessors, (2872), 1002 states have call successors, (1002), 16 states have call predecessors, (1002), 16 states have return successors, (1002), 988 states have call predecessors, (1002), 1002 states have call successors, (1002) [2024-11-23 18:27:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 4876 transitions. [2024-11-23 18:27:49,618 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 4876 transitions. Word has length 789 [2024-11-23 18:27:49,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:49,620 INFO L471 AbstractCegarLoop]: Abstraction has 3025 states and 4876 transitions. [2024-11-23 18:27:49,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:49,620 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 4876 transitions. [2024-11-23 18:27:49,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-23 18:27:49,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:49,629 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:49,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:27:49,630 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:49,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:49,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2105451739, now seen corresponding path program 1 times [2024-11-23 18:27:49,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:49,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614327532] [2024-11-23 18:27:49,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:49,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:50,455 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:27:50,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:50,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614327532] [2024-11-23 18:27:50,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614327532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:50,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:50,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:27:50,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289917043] [2024-11-23 18:27:50,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:50,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:27:50,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:50,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:27:50,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:27:50,459 INFO L87 Difference]: Start difference. First operand 3025 states and 4876 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:51,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:51,518 INFO L93 Difference]: Finished difference Result 9069 states and 14622 transitions. [2024-11-23 18:27:51,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:27:51,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 789 [2024-11-23 18:27:51,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:51,573 INFO L225 Difference]: With dead ends: 9069 [2024-11-23 18:27:51,573 INFO L226 Difference]: Without dead ends: 6047 [2024-11-23 18:27:51,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:27:51,591 INFO L435 NwaCegarLoop]: 732 mSDtfsCounter, 912 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:51,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 2166 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:27:51,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6047 states. [2024-11-23 18:27:52,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6047 to 6013. [2024-11-23 18:27:52,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 3976 states have (on average 1.4285714285714286) internal successors, (5680), 4004 states have internal predecessors, (5680), 2004 states have call successors, (2004), 32 states have call predecessors, (2004), 32 states have return successors, (2004), 1976 states have call predecessors, (2004), 2004 states have call successors, (2004) [2024-11-23 18:27:52,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 9688 transitions. [2024-11-23 18:27:52,404 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 9688 transitions. Word has length 789 [2024-11-23 18:27:52,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:52,406 INFO L471 AbstractCegarLoop]: Abstraction has 6013 states and 9688 transitions. [2024-11-23 18:27:52,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:52,410 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 9688 transitions. [2024-11-23 18:27:52,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-23 18:27:52,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:52,426 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:52,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:27:52,426 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:52,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:52,427 INFO L85 PathProgramCache]: Analyzing trace with hash -455411107, now seen corresponding path program 1 times [2024-11-23 18:27:52,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:52,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183134435] [2024-11-23 18:27:52,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:52,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:53,311 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:27:53,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:53,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183134435] [2024-11-23 18:27:53,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183134435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:53,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:53,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:27:53,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447420241] [2024-11-23 18:27:53,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:53,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:27:53,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:53,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:27:53,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:53,314 INFO L87 Difference]: Start difference. First operand 6013 states and 9688 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:54,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:54,031 INFO L93 Difference]: Finished difference Result 15039 states and 24240 transitions. [2024-11-23 18:27:54,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:27:54,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 789 [2024-11-23 18:27:54,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:54,121 INFO L225 Difference]: With dead ends: 15039 [2024-11-23 18:27:54,125 INFO L226 Difference]: Without dead ends: 9029 [2024-11-23 18:27:54,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:54,150 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 513 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:54,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1460 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:27:54,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9029 states. [2024-11-23 18:27:55,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9029 to 9015. [2024-11-23 18:27:55,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9015 states, 5960 states have (on average 1.4278523489932886) internal successors, (8510), 6002 states have internal predecessors, (8510), 3006 states have call successors, (3006), 48 states have call predecessors, (3006), 48 states have return successors, (3006), 2964 states have call predecessors, (3006), 3006 states have call successors, (3006) [2024-11-23 18:27:55,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9015 states to 9015 states and 14522 transitions. [2024-11-23 18:27:55,456 INFO L78 Accepts]: Start accepts. Automaton has 9015 states and 14522 transitions. Word has length 789 [2024-11-23 18:27:55,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:55,458 INFO L471 AbstractCegarLoop]: Abstraction has 9015 states and 14522 transitions. [2024-11-23 18:27:55,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:55,459 INFO L276 IsEmpty]: Start isEmpty. Operand 9015 states and 14522 transitions. [2024-11-23 18:27:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-23 18:27:55,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:55,474 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:55,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:27:55,474 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:55,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:55,475 INFO L85 PathProgramCache]: Analyzing trace with hash 255736745, now seen corresponding path program 1 times [2024-11-23 18:27:55,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:55,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412640109] [2024-11-23 18:27:55,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:55,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:55,881 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:27:55,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:27:55,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412640109] [2024-11-23 18:27:55,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412640109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:55,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:55,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:27:55,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293951115] [2024-11-23 18:27:55,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:55,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:27:55,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:27:55,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:27:55,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:55,887 INFO L87 Difference]: Start difference. First operand 9015 states and 14522 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:56,843 INFO L93 Difference]: Finished difference Result 23885 states and 38350 transitions. [2024-11-23 18:27:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:27:56,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 790 [2024-11-23 18:27:56,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:56,926 INFO L225 Difference]: With dead ends: 23885 [2024-11-23 18:27:56,926 INFO L226 Difference]: Without dead ends: 14873 [2024-11-23 18:27:56,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:27:56,962 INFO L435 NwaCegarLoop]: 735 mSDtfsCounter, 340 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:27:56,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1457 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:27:56,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14873 states. [2024-11-23 18:27:58,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14873 to 14847. [2024-11-23 18:27:58,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14847 states, 10352 states have (on average 1.4430061823802163) internal successors, (14938), 10442 states have internal predecessors, (14938), 4398 states have call successors, (4398), 96 states have call predecessors, (4398), 96 states have return successors, (4398), 4308 states have call predecessors, (4398), 4398 states have call successors, (4398) [2024-11-23 18:27:58,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14847 states to 14847 states and 23734 transitions. [2024-11-23 18:27:58,562 INFO L78 Accepts]: Start accepts. Automaton has 14847 states and 23734 transitions. Word has length 790 [2024-11-23 18:27:58,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:58,564 INFO L471 AbstractCegarLoop]: Abstraction has 14847 states and 23734 transitions. [2024-11-23 18:27:58,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:27:58,564 INFO L276 IsEmpty]: Start isEmpty. Operand 14847 states and 23734 transitions. [2024-11-23 18:27:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-23 18:27:58,591 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:58,592 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:58,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:27:58,592 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:27:58,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1217365653, now seen corresponding path program 1 times [2024-11-23 18:27:58,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:27:58,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119759880] [2024-11-23 18:27:58,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:58,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:28:01,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:01,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119759880] [2024-11-23 18:28:01,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119759880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:01,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:01,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 18:28:01,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532974549] [2024-11-23 18:28:01,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:01,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:28:01,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:01,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:28:01,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:28:01,781 INFO L87 Difference]: Start difference. First operand 14847 states and 23734 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 3 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 3 states have call predecessors, (123), 3 states have call successors, (123) [2024-11-23 18:28:06,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:28:06,861 INFO L93 Difference]: Finished difference Result 42763 states and 68248 transitions. [2024-11-23 18:28:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:28:06,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 3 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 3 states have call predecessors, (123), 3 states have call successors, (123) Word has length 790 [2024-11-23 18:28:06,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:28:07,036 INFO L225 Difference]: With dead ends: 42763 [2024-11-23 18:28:07,037 INFO L226 Difference]: Without dead ends: 27919 [2024-11-23 18:28:07,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:28:07,104 INFO L435 NwaCegarLoop]: 1525 mSDtfsCounter, 1532 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 4472 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:28:07,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 4472 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-23 18:28:07,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27919 states. [2024-11-23 18:28:10,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27919 to 21399. [2024-11-23 18:28:10,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21399 states, 15164 states have (on average 1.449749406489053) internal successors, (21984), 15302 states have internal predecessors, (21984), 6090 states have call successors, (6090), 144 states have call predecessors, (6090), 144 states have return successors, (6090), 5952 states have call predecessors, (6090), 6090 states have call successors, (6090) [2024-11-23 18:28:10,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21399 states to 21399 states and 34164 transitions. [2024-11-23 18:28:10,616 INFO L78 Accepts]: Start accepts. Automaton has 21399 states and 34164 transitions. Word has length 790 [2024-11-23 18:28:10,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:28:10,618 INFO L471 AbstractCegarLoop]: Abstraction has 21399 states and 34164 transitions. [2024-11-23 18:28:10,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 3 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 3 states have call predecessors, (123), 3 states have call successors, (123) [2024-11-23 18:28:10,618 INFO L276 IsEmpty]: Start isEmpty. Operand 21399 states and 34164 transitions. [2024-11-23 18:28:10,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2024-11-23 18:28:10,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:28:10,805 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:10,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:28:10,806 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:28:10,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:10,807 INFO L85 PathProgramCache]: Analyzing trace with hash 659697577, now seen corresponding path program 1 times [2024-11-23 18:28:10,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:10,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849925444] [2024-11-23 18:28:10,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:10,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:11,266 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:28:11,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:11,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849925444] [2024-11-23 18:28:11,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849925444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:11,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:11,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:28:11,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441144941] [2024-11-23 18:28:11,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:11,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:28:11,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:11,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:28:11,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:28:11,270 INFO L87 Difference]: Start difference. First operand 21399 states and 34164 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:28:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:28:15,544 INFO L93 Difference]: Finished difference Result 64140 states and 102399 transitions. [2024-11-23 18:28:15,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:28:15,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 790 [2024-11-23 18:28:15,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:28:15,810 INFO L225 Difference]: With dead ends: 64140 [2024-11-23 18:28:15,810 INFO L226 Difference]: Without dead ends: 42744 [2024-11-23 18:28:15,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:28:15,886 INFO L435 NwaCegarLoop]: 789 mSDtfsCounter, 521 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:28:15,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1508 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:28:15,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42744 states. [2024-11-23 18:28:19,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42744 to 42742. [2024-11-23 18:28:19,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42742 states, 30273 states have (on average 1.4488818419053282) internal successors, (43862), 30549 states have internal predecessors, (43862), 12180 states have call successors, (12180), 288 states have call predecessors, (12180), 288 states have return successors, (12180), 11904 states have call predecessors, (12180), 12180 states have call successors, (12180) [2024-11-23 18:28:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42742 states to 42742 states and 68222 transitions. [2024-11-23 18:28:20,138 INFO L78 Accepts]: Start accepts. Automaton has 42742 states and 68222 transitions. Word has length 790 [2024-11-23 18:28:20,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:28:20,143 INFO L471 AbstractCegarLoop]: Abstraction has 42742 states and 68222 transitions. [2024-11-23 18:28:20,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:28:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 42742 states and 68222 transitions. [2024-11-23 18:28:20,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2024-11-23 18:28:20,182 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:28:20,182 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:20,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:28:20,183 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:28:20,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:20,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1080665947, now seen corresponding path program 1 times [2024-11-23 18:28:20,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:20,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820717994] [2024-11-23 18:28:20,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:20,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:28:21,123 INFO L134 CoverageAnalysis]: Checked inductivity of 30012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2024-11-23 18:28:21,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:28:21,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820717994] [2024-11-23 18:28:21,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820717994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:28:21,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:28:21,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:28:21,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218464288] [2024-11-23 18:28:21,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:28:21,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:28:21,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:28:21,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:28:21,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:28:21,128 INFO L87 Difference]: Start difference. First operand 42742 states and 68222 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:28:28,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:28:28,497 INFO L93 Difference]: Finished difference Result 128220 states and 204660 transitions. [2024-11-23 18:28:28,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:28:28,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) Word has length 791 [2024-11-23 18:28:28,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:28:28,965 INFO L225 Difference]: With dead ends: 128220 [2024-11-23 18:28:28,965 INFO L226 Difference]: Without dead ends: 85481 [2024-11-23 18:28:29,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:28:29,090 INFO L435 NwaCegarLoop]: 724 mSDtfsCounter, 509 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:28:29,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1443 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:28:29,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85481 states. [2024-11-23 18:28:37,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85481 to 85479. [2024-11-23 18:28:37,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85479 states, 60542 states have (on average 1.447920451917677) internal successors, (87660), 61094 states have internal predecessors, (87660), 24360 states have call successors, (24360), 576 states have call predecessors, (24360), 576 states have return successors, (24360), 23808 states have call predecessors, (24360), 24360 states have call successors, (24360) [2024-11-23 18:28:38,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85479 states to 85479 states and 136380 transitions. [2024-11-23 18:28:38,458 INFO L78 Accepts]: Start accepts. Automaton has 85479 states and 136380 transitions. Word has length 791 [2024-11-23 18:28:38,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:28:38,460 INFO L471 AbstractCegarLoop]: Abstraction has 85479 states and 136380 transitions. [2024-11-23 18:28:38,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 1 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 1 states have call predecessors, (123), 1 states have call successors, (123) [2024-11-23 18:28:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 85479 states and 136380 transitions. [2024-11-23 18:28:38,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2024-11-23 18:28:38,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:28:38,536 INFO L218 NwaCegarLoop]: trace histogram [123, 123, 123, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:28:38,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:28:38,536 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:28:38,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:28:38,537 INFO L85 PathProgramCache]: Analyzing trace with hash 193443101, now seen corresponding path program 1 times [2024-11-23 18:28:38,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:28:38,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033404169] [2024-11-23 18:28:38,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:28:38,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:28:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat