./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB --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 23a05992f4024df2d983a8fb4ad6ac19034ad7c6bce98692b4d6369898cca580 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:50:37,134 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:37,221 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 19:50:37,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:37,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:37,265 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:37,266 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:37,266 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:37,268 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:37,268 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:37,269 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:37,269 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:37,270 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:37,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:37,270 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:37,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:37,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:50:37,271 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:50:37,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:37,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:50:37,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:37,271 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:50:37,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:37,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:50:37,271 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:50:37,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:50:37,272 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:37,272 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:37,272 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:37,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:37,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:37,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:37,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:37,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:37,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:37,273 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:37,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:37,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:37,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:37,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:37,273 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:50:37,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:50:37,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:50:37,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:50:37,274 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:37,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:37,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:37,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:37,274 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_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 23a05992f4024df2d983a8fb4ad6ac19034ad7c6bce98692b4d6369898cca580 [2024-11-27 19:50:37,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:37,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:37,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:37,602 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:37,602 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:37,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i [2024-11-27 19:50:40,755 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/data/59a046192/551a91d084514df8a422449908784e29/FLAG43e81cc2e [2024-11-27 19:50:41,032 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:50:41,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i [2024-11-27 19:50:41,053 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/data/59a046192/551a91d084514df8a422449908784e29/FLAG43e81cc2e [2024-11-27 19:50:41,331 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/data/59a046192/551a91d084514df8a422449908784e29 [2024-11-27 19:50:41,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:50:41,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:50:41,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:41,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:50:41,342 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:50:41,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a55673a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41, skipping insertion in model container [2024-11-27 19:50:41,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,374 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:50:41,549 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_1d974eee-1cef-437d-8bba-767fe7b411c0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i[919,932] [2024-11-27 19:50:41,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:41,679 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:50:41,690 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_1d974eee-1cef-437d-8bba-767fe7b411c0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i[919,932] [2024-11-27 19:50:41,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:41,781 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:50:41,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41 WrapperNode [2024-11-27 19:50:41,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:41,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:41,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:50:41,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:50:41,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,856 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2024-11-27 19:50:41,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:41,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:50:41,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:50:41,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:50:41,867 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,872 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,892 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]. [2024-11-27 19:50:41,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,902 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,904 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:50:41,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:50:41,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:50:41,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:50:41,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (1/1) ... [2024-11-27 19:50:41,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:41,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:41,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:50:41,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:50:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:50:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:50:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:50:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:50:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:50:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:50:42,102 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:50:42,105 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:50:42,725 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-27 19:50:42,726 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:50:42,741 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:50:42,744 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:50:42,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:42 BoogieIcfgContainer [2024-11-27 19:50:42,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:50:42,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:50:42,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:50:42,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:50:42,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:41" (1/3) ... [2024-11-27 19:50:42,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1533f72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:42, skipping insertion in model container [2024-11-27 19:50:42,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:41" (2/3) ... [2024-11-27 19:50:42,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1533f72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:42, skipping insertion in model container [2024-11-27 19:50:42,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:42" (3/3) ... [2024-11-27 19:50:42,757 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i [2024-11-27 19:50:42,774 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:50:42,776 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-86.i that has 2 procedures, 104 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:50:42,847 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:50:42,867 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;@7bb29e9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:50:42,867 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:50:42,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-27 19:50:42,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-27 19:50:42,890 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:42,891 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:42,892 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:42,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:42,899 INFO L85 PathProgramCache]: Analyzing trace with hash 750140910, now seen corresponding path program 1 times [2024-11-27 19:50:42,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:42,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713892536] [2024-11-27 19:50:42,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:42,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-27 19:50:43,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:43,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713892536] [2024-11-27 19:50:43,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713892536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:43,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186781657] [2024-11-27 19:50:43,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:43,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:43,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:43,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:43,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:50:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:43,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 19:50:43,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-27 19:50:43,714 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:50:43,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186781657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:43,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:50:43,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 19:50:43,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618081053] [2024-11-27 19:50:43,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:43,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:50:43,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:43,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:50:43,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:50:43,754 INFO L87 Difference]: Start difference. First operand has 104 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:50:43,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:43,788 INFO L93 Difference]: Finished difference Result 201 states and 355 transitions. [2024-11-27 19:50:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:50:43,790 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 197 [2024-11-27 19:50:43,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:43,799 INFO L225 Difference]: With dead ends: 201 [2024-11-27 19:50:43,799 INFO L226 Difference]: Without dead ends: 100 [2024-11-27 19:50:43,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:50:43,806 INFO L435 NwaCegarLoop]: 157 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, 157 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 [2024-11-27 19:50:43,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:50:43,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-27 19:50:43,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-27 19:50:43,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-27 19:50:43,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 157 transitions. [2024-11-27 19:50:43,883 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 157 transitions. Word has length 197 [2024-11-27 19:50:43,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:43,883 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 157 transitions. [2024-11-27 19:50:43,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:50:43,884 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 157 transitions. [2024-11-27 19:50:43,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-27 19:50:43,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:43,888 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:43,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:50:44,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 19:50:44,090 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:44,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:44,091 INFO L85 PathProgramCache]: Analyzing trace with hash -263955024, now seen corresponding path program 1 times [2024-11-27 19:50:44,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:44,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994231587] [2024-11-27 19:50:44,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:44,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:50:44,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:44,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994231587] [2024-11-27 19:50:44,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994231587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:44,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:44,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:44,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474388915] [2024-11-27 19:50:44,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:44,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:44,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:44,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:44,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:44,586 INFO L87 Difference]: Start difference. First operand 100 states and 157 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:50:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:44,641 INFO L93 Difference]: Finished difference Result 198 states and 313 transitions. [2024-11-27 19:50:44,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:44,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-27 19:50:44,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:44,644 INFO L225 Difference]: With dead ends: 198 [2024-11-27 19:50:44,645 INFO L226 Difference]: Without dead ends: 101 [2024-11-27 19:50:44,645 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 [2024-11-27 19:50:44,646 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:44,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:50:44,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-27 19:50:44,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-27 19:50:44,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 68 states have (on average 1.411764705882353) internal successors, (96), 68 states have internal predecessors, (96), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-27 19:50:44,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 158 transitions. [2024-11-27 19:50:44,671 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 158 transitions. Word has length 197 [2024-11-27 19:50:44,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:44,673 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 158 transitions. [2024-11-27 19:50:44,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:50:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 158 transitions. [2024-11-27 19:50:44,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-27 19:50:44,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:44,677 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:44,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:50:44,678 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:44,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:44,678 INFO L85 PathProgramCache]: Analyzing trace with hash 2036867566, now seen corresponding path program 1 times [2024-11-27 19:50:44,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:44,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614867954] [2024-11-27 19:50:44,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:44,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:53,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:50:53,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:53,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614867954] [2024-11-27 19:50:53,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614867954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:53,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:53,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 19:50:53,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987856135] [2024-11-27 19:50:53,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:53,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 19:50:53,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:53,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 19:50:53,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:50:53,438 INFO L87 Difference]: Start difference. First operand 101 states and 158 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:50:55,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:55,372 INFO L93 Difference]: Finished difference Result 383 states and 590 transitions. [2024-11-27 19:50:55,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 19:50:55,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-27 19:50:55,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:55,377 INFO L225 Difference]: With dead ends: 383 [2024-11-27 19:50:55,377 INFO L226 Difference]: Without dead ends: 285 [2024-11-27 19:50:55,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2024-11-27 19:50:55,380 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 431 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:55,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1058 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 19:50:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-27 19:50:55,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 199. [2024-11-27 19:50:55,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 134 states have (on average 1.3955223880597014) internal successors, (187), 134 states have internal predecessors, (187), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-27 19:50:55,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 311 transitions. [2024-11-27 19:50:55,433 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 311 transitions. Word has length 197 [2024-11-27 19:50:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:55,435 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 311 transitions. [2024-11-27 19:50:55,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:50:55,437 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 311 transitions. [2024-11-27 19:50:55,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-27 19:50:55,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:55,443 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:55,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:50:55,443 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:55,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:55,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1557035152, now seen corresponding path program 1 times [2024-11-27 19:50:55,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:55,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510667206] [2024-11-27 19:50:55,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:55,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:55,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:50:55,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:55,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510667206] [2024-11-27 19:50:55,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510667206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:55,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:55,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:55,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186894982] [2024-11-27 19:50:55,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:55,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:55,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:55,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:55,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:55,582 INFO L87 Difference]: Start difference. First operand 199 states and 311 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:50:55,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:55,645 INFO L93 Difference]: Finished difference Result 394 states and 619 transitions. [2024-11-27 19:50:55,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:55,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-27 19:50:55,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:55,650 INFO L225 Difference]: With dead ends: 394 [2024-11-27 19:50:55,650 INFO L226 Difference]: Without dead ends: 296 [2024-11-27 19:50:55,651 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 [2024-11-27 19:50:55,652 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 148 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:55,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 314 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:50:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-27 19:50:55,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 294. [2024-11-27 19:50:55,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 197 states have (on average 1.3908629441624365) internal successors, (274), 197 states have internal predecessors, (274), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:50:55,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 460 transitions. [2024-11-27 19:50:55,689 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 460 transitions. Word has length 197 [2024-11-27 19:50:55,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:55,690 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 460 transitions. [2024-11-27 19:50:55,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:50:55,691 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 460 transitions. [2024-11-27 19:50:55,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-27 19:50:55,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:55,694 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:55,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:50:55,695 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:55,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:55,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1246982480, now seen corresponding path program 1 times [2024-11-27 19:50:55,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:55,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829115288] [2024-11-27 19:50:55,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:55,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:50:55,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:55,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829115288] [2024-11-27 19:50:55,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829115288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:55,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:55,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:50:55,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931099539] [2024-11-27 19:50:55,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:55,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:50:55,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:55,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:50:55,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:50:55,941 INFO L87 Difference]: Start difference. First operand 294 states and 460 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:50:56,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:56,226 INFO L93 Difference]: Finished difference Result 510 states and 792 transitions. [2024-11-27 19:50:56,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:50:56,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-27 19:50:56,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:56,232 INFO L225 Difference]: With dead ends: 510 [2024-11-27 19:50:56,233 INFO L226 Difference]: Without dead ends: 314 [2024-11-27 19:50:56,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:50:56,236 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 149 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:56,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 535 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:50:56,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-27 19:50:56,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 292. [2024-11-27 19:50:56,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 195 states have (on average 1.3846153846153846) internal successors, (270), 195 states have internal predecessors, (270), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:50:56,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 456 transitions. [2024-11-27 19:50:56,299 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 456 transitions. Word has length 197 [2024-11-27 19:50:56,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:56,301 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 456 transitions. [2024-11-27 19:50:56,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:50:56,302 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 456 transitions. [2024-11-27 19:50:56,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-27 19:50:56,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:56,305 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:56,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 19:50:56,305 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:50:56,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:56,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1228112962, now seen corresponding path program 1 times [2024-11-27 19:50:56,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:56,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759729449] [2024-11-27 19:50:56,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:56,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:05,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:51:05,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:05,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759729449] [2024-11-27 19:51:05,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759729449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:05,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:05,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 19:51:05,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102690767] [2024-11-27 19:51:05,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:05,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:51:05,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:05,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:51:05,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:51:05,972 INFO L87 Difference]: Start difference. First operand 292 states and 456 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:51:10,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:10,183 INFO L93 Difference]: Finished difference Result 342 states and 514 transitions. [2024-11-27 19:51:10,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 19:51:10,184 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-27 19:51:10,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:10,187 INFO L225 Difference]: With dead ends: 342 [2024-11-27 19:51:10,187 INFO L226 Difference]: Without dead ends: 340 [2024-11-27 19:51:10,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2024-11-27 19:51:10,189 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 322 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:10,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1164 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 19:51:10,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-27 19:51:10,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 293. [2024-11-27 19:51:10,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3826530612244898) internal successors, (271), 196 states have internal predecessors, (271), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:51:10,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 457 transitions. [2024-11-27 19:51:10,228 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 457 transitions. Word has length 198 [2024-11-27 19:51:10,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:10,229 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 457 transitions. [2024-11-27 19:51:10,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:51:10,229 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 457 transitions. [2024-11-27 19:51:10,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-27 19:51:10,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:10,232 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:10,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:51:10,232 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:10,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:10,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1440270376, now seen corresponding path program 1 times [2024-11-27 19:51:10,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:10,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157173011] [2024-11-27 19:51:10,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:10,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:10,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:51:10,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:10,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157173011] [2024-11-27 19:51:10,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157173011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:10,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:10,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:51:10,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434673662] [2024-11-27 19:51:10,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:10,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:10,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:10,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:10,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:10,511 INFO L87 Difference]: Start difference. First operand 293 states and 457 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:51:10,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:10,551 INFO L93 Difference]: Finished difference Result 497 states and 776 transitions. [2024-11-27 19:51:10,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:10,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-27 19:51:10,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:10,558 INFO L225 Difference]: With dead ends: 497 [2024-11-27 19:51:10,558 INFO L226 Difference]: Without dead ends: 301 [2024-11-27 19:51:10,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:10,561 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 6 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:10,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 305 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:10,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-27 19:51:10,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 293. [2024-11-27 19:51:10,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3673469387755102) internal successors, (268), 196 states have internal predecessors, (268), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:51:10,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 454 transitions. [2024-11-27 19:51:10,601 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 454 transitions. Word has length 198 [2024-11-27 19:51:10,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:10,601 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 454 transitions. [2024-11-27 19:51:10,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:51:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 454 transitions. [2024-11-27 19:51:10,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-27 19:51:10,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:10,605 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:10,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:51:10,606 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:10,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:10,606 INFO L85 PathProgramCache]: Analyzing trace with hash 334736986, now seen corresponding path program 1 times [2024-11-27 19:51:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:10,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485837193] [2024-11-27 19:51:10,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:10,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:16,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:51:16,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:16,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485837193] [2024-11-27 19:51:16,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485837193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:16,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:16,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 19:51:16,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490943761] [2024-11-27 19:51:16,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:16,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 19:51:16,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:16,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 19:51:16,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:51:16,498 INFO L87 Difference]: Start difference. First operand 293 states and 454 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:51:18,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:18,487 INFO L93 Difference]: Finished difference Result 347 states and 514 transitions. [2024-11-27 19:51:18,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 19:51:18,488 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2024-11-27 19:51:18,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:18,491 INFO L225 Difference]: With dead ends: 347 [2024-11-27 19:51:18,491 INFO L226 Difference]: Without dead ends: 345 [2024-11-27 19:51:18,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=276, Invalid=846, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 19:51:18,492 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 522 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:18,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1117 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 19:51:18,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-27 19:51:18,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 293. [2024-11-27 19:51:18,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3673469387755102) internal successors, (268), 196 states have internal predecessors, (268), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:51:18,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 454 transitions. [2024-11-27 19:51:18,548 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 454 transitions. Word has length 198 [2024-11-27 19:51:18,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:18,549 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 454 transitions. [2024-11-27 19:51:18,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:51:18,549 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 454 transitions. [2024-11-27 19:51:18,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-27 19:51:18,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:18,554 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:18,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 19:51:18,556 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:18,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:18,557 INFO L85 PathProgramCache]: Analyzing trace with hash -109385737, now seen corresponding path program 1 times [2024-11-27 19:51:18,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:18,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997766366] [2024-11-27 19:51:18,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:18,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:28,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:51:28,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:28,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997766366] [2024-11-27 19:51:28,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997766366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:28,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:28,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 19:51:28,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000265376] [2024-11-27 19:51:28,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:28,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:51:28,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:28,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:51:28,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:51:28,178 INFO L87 Difference]: Start difference. First operand 293 states and 454 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:51:35,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:35,978 INFO L93 Difference]: Finished difference Result 363 states and 533 transitions. [2024-11-27 19:51:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 19:51:35,979 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-27 19:51:35,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:35,982 INFO L225 Difference]: With dead ends: 363 [2024-11-27 19:51:35,982 INFO L226 Difference]: Without dead ends: 361 [2024-11-27 19:51:35,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=262, Invalid=668, Unknown=0, NotChecked=0, Total=930 [2024-11-27 19:51:35,983 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 369 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:35,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 957 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 19:51:35,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-27 19:51:36,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 303. [2024-11-27 19:51:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 206 states have (on average 1.3640776699029127) internal successors, (281), 206 states have internal predecessors, (281), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:51:36,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 467 transitions. [2024-11-27 19:51:36,014 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 467 transitions. Word has length 198 [2024-11-27 19:51:36,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:36,014 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 467 transitions. [2024-11-27 19:51:36,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:51:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 467 transitions. [2024-11-27 19:51:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-27 19:51:36,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:36,017 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:36,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:51:36,018 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:36,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:36,018 INFO L85 PathProgramCache]: Analyzing trace with hash 570672633, now seen corresponding path program 1 times [2024-11-27 19:51:36,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:36,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838891440] [2024-11-27 19:51:36,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:36,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:44,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:51:44,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838891440] [2024-11-27 19:51:44,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838891440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:44,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:44,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 19:51:44,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951039972] [2024-11-27 19:51:44,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:44,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 19:51:44,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:44,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 19:51:44,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:51:44,165 INFO L87 Difference]: Start difference. First operand 303 states and 467 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:51:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:51,844 INFO L93 Difference]: Finished difference Result 357 states and 527 transitions. [2024-11-27 19:51:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 19:51:51,845 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-27 19:51:51,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:51,847 INFO L225 Difference]: With dead ends: 357 [2024-11-27 19:51:51,847 INFO L226 Difference]: Without dead ends: 355 [2024-11-27 19:51:51,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=281, Invalid=711, Unknown=0, NotChecked=0, Total=992 [2024-11-27 19:51:51,849 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 256 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:51,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1156 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 19:51:51,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-27 19:51:51,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 303. [2024-11-27 19:51:51,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 206 states have (on average 1.3640776699029127) internal successors, (281), 206 states have internal predecessors, (281), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:51:51,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 467 transitions. [2024-11-27 19:51:51,880 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 467 transitions. Word has length 198 [2024-11-27 19:51:51,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:51,880 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 467 transitions. [2024-11-27 19:51:51,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:51:51,881 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 467 transitions. [2024-11-27 19:51:51,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 19:51:51,884 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:51,884 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:51,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 19:51:51,884 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:51,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:51,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1840413906, now seen corresponding path program 1 times [2024-11-27 19:51:51,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:51,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171079503] [2024-11-27 19:51:51,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:51,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:59,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:51:59,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:59,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171079503] [2024-11-27 19:51:59,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171079503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:59,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:59,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-27 19:51:59,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328838604] [2024-11-27 19:51:59,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:59,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 19:51:59,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:59,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 19:51:59,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-27 19:51:59,959 INFO L87 Difference]: Start difference. First operand 303 states and 467 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:52:05,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:05,254 INFO L93 Difference]: Finished difference Result 345 states and 513 transitions. [2024-11-27 19:52:05,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 19:52:05,254 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 199 [2024-11-27 19:52:05,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:05,257 INFO L225 Difference]: With dead ends: 345 [2024-11-27 19:52:05,258 INFO L226 Difference]: Without dead ends: 343 [2024-11-27 19:52:05,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2024-11-27 19:52:05,259 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 474 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:05,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1294 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 19:52:05,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-27 19:52:05,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 300. [2024-11-27 19:52:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 203 states have (on average 1.3645320197044335) internal successors, (277), 203 states have internal predecessors, (277), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:52:05,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 463 transitions. [2024-11-27 19:52:05,291 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 463 transitions. Word has length 199 [2024-11-27 19:52:05,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:05,292 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 463 transitions. [2024-11-27 19:52:05,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:52:05,292 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 463 transitions. [2024-11-27 19:52:05,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 19:52:05,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:05,294 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:05,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 19:52:05,294 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:52:05,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:05,295 INFO L85 PathProgramCache]: Analyzing trace with hash 959358423, now seen corresponding path program 1 times [2024-11-27 19:52:05,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:05,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842554701] [2024-11-27 19:52:05,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:05,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:10,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:52:10,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:10,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842554701] [2024-11-27 19:52:10,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842554701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:10,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:10,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 19:52:10,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738405021] [2024-11-27 19:52:10,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:10,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 19:52:10,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:10,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 19:52:10,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:52:10,715 INFO L87 Difference]: Start difference. First operand 300 states and 463 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:52:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:13,650 INFO L93 Difference]: Finished difference Result 358 states and 528 transitions. [2024-11-27 19:52:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 19:52:13,651 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-27 19:52:13,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:13,653 INFO L225 Difference]: With dead ends: 358 [2024-11-27 19:52:13,653 INFO L226 Difference]: Without dead ends: 356 [2024-11-27 19:52:13,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=293, Invalid=763, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 19:52:13,655 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 294 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:13,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1179 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 19:52:13,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-27 19:52:13,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 305. [2024-11-27 19:52:13,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 208 states have (on average 1.3653846153846154) internal successors, (284), 208 states have internal predecessors, (284), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:52:13,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 470 transitions. [2024-11-27 19:52:13,683 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 470 transitions. Word has length 199 [2024-11-27 19:52:13,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:13,684 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 470 transitions. [2024-11-27 19:52:13,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:52:13,684 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 470 transitions. [2024-11-27 19:52:13,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 19:52:13,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:13,685 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:13,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 19:52:13,686 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:52:13,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:13,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1774605967, now seen corresponding path program 1 times [2024-11-27 19:52:13,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:13,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874769765] [2024-11-27 19:52:13,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:13,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:18,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:52:18,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:18,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874769765] [2024-11-27 19:52:18,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874769765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:18,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:18,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 19:52:18,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412745882] [2024-11-27 19:52:18,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:18,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 19:52:18,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:18,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 19:52:18,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:52:18,649 INFO L87 Difference]: Start difference. First operand 305 states and 470 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:52:22,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:22,729 INFO L93 Difference]: Finished difference Result 358 states and 528 transitions. [2024-11-27 19:52:22,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 19:52:22,731 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-27 19:52:22,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:22,734 INFO L225 Difference]: With dead ends: 358 [2024-11-27 19:52:22,734 INFO L226 Difference]: Without dead ends: 356 [2024-11-27 19:52:22,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=298, Invalid=758, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 19:52:22,736 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 365 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:22,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1038 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 19:52:22,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-27 19:52:22,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 306. [2024-11-27 19:52:22,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 209 states have (on average 1.3636363636363635) internal successors, (285), 209 states have internal predecessors, (285), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:52:22,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 471 transitions. [2024-11-27 19:52:22,774 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 471 transitions. Word has length 199 [2024-11-27 19:52:22,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:22,775 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 471 transitions. [2024-11-27 19:52:22,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:52:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 471 transitions. [2024-11-27 19:52:22,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 19:52:22,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:22,777 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:22,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 19:52:22,778 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:52:22,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:22,779 INFO L85 PathProgramCache]: Analyzing trace with hash 566331413, now seen corresponding path program 1 times [2024-11-27 19:52:22,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:22,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112621640] [2024-11-27 19:52:22,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:22,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:35,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:52:35,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:35,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112621640] [2024-11-27 19:52:35,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112621640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:35,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:35,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-27 19:52:35,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182685901] [2024-11-27 19:52:35,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:35,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 19:52:35,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:35,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 19:52:35,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-27 19:52:35,460 INFO L87 Difference]: Start difference. First operand 306 states and 471 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:52:48,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:48,536 INFO L93 Difference]: Finished difference Result 354 states and 524 transitions. [2024-11-27 19:52:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 19:52:48,538 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-27 19:52:48,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:48,541 INFO L225 Difference]: With dead ends: 354 [2024-11-27 19:52:48,541 INFO L226 Difference]: Without dead ends: 352 [2024-11-27 19:52:48,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=315, Invalid=807, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 19:52:48,543 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 281 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:48,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 980 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-27 19:52:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-27 19:52:48,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 306. [2024-11-27 19:52:48,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 209 states have (on average 1.3636363636363635) internal successors, (285), 209 states have internal predecessors, (285), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:52:48,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 471 transitions. [2024-11-27 19:52:48,576 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 471 transitions. Word has length 199 [2024-11-27 19:52:48,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:48,577 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 471 transitions. [2024-11-27 19:52:48,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:52:48,578 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 471 transitions. [2024-11-27 19:52:48,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 19:52:48,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:48,579 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:48,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 19:52:48,580 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:52:48,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:48,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2127334319, now seen corresponding path program 1 times [2024-11-27 19:52:48,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:48,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761509108] [2024-11-27 19:52:48,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:48,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:55,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:52:55,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:55,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761509108] [2024-11-27 19:52:55,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761509108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:55,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:55,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-27 19:52:55,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969165485] [2024-11-27 19:52:55,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:55,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 19:52:55,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:55,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 19:52:55,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-27 19:52:55,853 INFO L87 Difference]: Start difference. First operand 306 states and 471 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:53:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:00,846 INFO L93 Difference]: Finished difference Result 353 states and 522 transitions. [2024-11-27 19:53:00,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 19:53:00,847 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-27 19:53:00,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:00,848 INFO L225 Difference]: With dead ends: 353 [2024-11-27 19:53:00,848 INFO L226 Difference]: Without dead ends: 351 [2024-11-27 19:53:00,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=409, Invalid=1073, Unknown=0, NotChecked=0, Total=1482 [2024-11-27 19:53:00,849 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 269 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:00,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 1238 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 19:53:00,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-27 19:53:00,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 304. [2024-11-27 19:53:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 207 states have (on average 1.3623188405797102) internal successors, (282), 207 states have internal predecessors, (282), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:53:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 468 transitions. [2024-11-27 19:53:00,877 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 468 transitions. Word has length 199 [2024-11-27 19:53:00,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:00,878 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 468 transitions. [2024-11-27 19:53:00,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:53:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 468 transitions. [2024-11-27 19:53:00,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 19:53:00,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:00,880 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:00,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 19:53:00,880 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:00,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:00,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1872439518, now seen corresponding path program 1 times [2024-11-27 19:53:00,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:00,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026823759] [2024-11-27 19:53:00,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:00,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:53:16,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:16,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026823759] [2024-11-27 19:53:16,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026823759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:16,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:16,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-27 19:53:16,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465483815] [2024-11-27 19:53:16,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:16,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 19:53:16,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:16,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 19:53:16,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-27 19:53:16,873 INFO L87 Difference]: Start difference. First operand 304 states and 468 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:53:29,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:29,268 INFO L93 Difference]: Finished difference Result 361 states and 531 transitions. [2024-11-27 19:53:29,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 19:53:29,269 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-27 19:53:29,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:29,272 INFO L225 Difference]: With dead ends: 361 [2024-11-27 19:53:29,272 INFO L226 Difference]: Without dead ends: 359 [2024-11-27 19:53:29,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=318, Invalid=804, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 19:53:29,273 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 328 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:29,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 951 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 19:53:29,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-27 19:53:29,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 310. [2024-11-27 19:53:29,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 213 states have (on average 1.3615023474178405) internal successors, (290), 213 states have internal predecessors, (290), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:53:29,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 476 transitions. [2024-11-27 19:53:29,301 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 476 transitions. Word has length 199 [2024-11-27 19:53:29,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:29,301 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 476 transitions. [2024-11-27 19:53:29,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:53:29,302 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 476 transitions. [2024-11-27 19:53:29,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 19:53:29,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:29,303 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:29,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 19:53:29,303 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:53:29,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:29,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1192381148, now seen corresponding path program 1 times [2024-11-27 19:53:29,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:29,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496539499] [2024-11-27 19:53:29,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:29,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:47,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:53:47,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:47,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496539499] [2024-11-27 19:53:47,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496539499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:53:47,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:53:47,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-27 19:53:47,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289508378] [2024-11-27 19:53:47,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:53:47,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 19:53:47,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:47,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 19:53:47,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:53:47,815 INFO L87 Difference]: Start difference. First operand 310 states and 476 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:54:02,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:02,141 INFO L93 Difference]: Finished difference Result 355 states and 525 transitions. [2024-11-27 19:54:02,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 19:54:02,142 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-27 19:54:02,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:02,144 INFO L225 Difference]: With dead ends: 355 [2024-11-27 19:54:02,144 INFO L226 Difference]: Without dead ends: 353 [2024-11-27 19:54:02,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=341, Invalid=849, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 19:54:02,146 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 247 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:02,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 1174 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-27 19:54:02,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-27 19:54:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 310. [2024-11-27 19:54:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 213 states have (on average 1.3615023474178405) internal successors, (290), 213 states have internal predecessors, (290), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:54:02,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 476 transitions. [2024-11-27 19:54:02,173 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 476 transitions. Word has length 199 [2024-11-27 19:54:02,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:02,174 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 476 transitions. [2024-11-27 19:54:02,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:54:02,174 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 476 transitions. [2024-11-27 19:54:02,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-27 19:54:02,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:02,176 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:02,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 19:54:02,176 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:02,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:02,177 INFO L85 PathProgramCache]: Analyzing trace with hash 877138845, now seen corresponding path program 1 times [2024-11-27 19:54:02,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:02,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194405949] [2024-11-27 19:54:02,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:02,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:54:14,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:14,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194405949] [2024-11-27 19:54:14,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194405949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:14,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:14,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-27 19:54:14,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903531644] [2024-11-27 19:54:14,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:14,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 19:54:14,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:14,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 19:54:14,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:54:14,191 INFO L87 Difference]: Start difference. First operand 310 states and 476 transitions. Second operand has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:54:30,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:30,384 INFO L93 Difference]: Finished difference Result 362 states and 533 transitions. [2024-11-27 19:54:30,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 19:54:30,385 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2024-11-27 19:54:30,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:30,387 INFO L225 Difference]: With dead ends: 362 [2024-11-27 19:54:30,387 INFO L226 Difference]: Without dead ends: 360 [2024-11-27 19:54:30,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=354, Invalid=978, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 19:54:30,389 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 280 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:30,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1257 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-27 19:54:30,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-27 19:54:30,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 313. [2024-11-27 19:54:30,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 216 states have (on average 1.3611111111111112) internal successors, (294), 216 states have internal predecessors, (294), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:54:30,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 480 transitions. [2024-11-27 19:54:30,417 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 480 transitions. Word has length 200 [2024-11-27 19:54:30,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:30,417 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 480 transitions. [2024-11-27 19:54:30,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:54:30,418 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 480 transitions. [2024-11-27 19:54:30,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-27 19:54:30,419 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:30,419 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:30,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 19:54:30,419 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:30,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1578203423, now seen corresponding path program 1 times [2024-11-27 19:54:30,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:30,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744828135] [2024-11-27 19:54:30,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:30,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:54:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:54:40,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:40,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744828135] [2024-11-27 19:54:40,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744828135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:54:40,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:54:40,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-27 19:54:40,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860437864] [2024-11-27 19:54:40,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:54:40,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 19:54:40,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:40,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 19:54:40,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:54:40,123 INFO L87 Difference]: Start difference. First operand 313 states and 480 transitions. Second operand has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:54:48,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:54:48,959 INFO L93 Difference]: Finished difference Result 352 states and 522 transitions. [2024-11-27 19:54:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 19:54:48,960 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2024-11-27 19:54:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:54:48,962 INFO L225 Difference]: With dead ends: 352 [2024-11-27 19:54:48,962 INFO L226 Difference]: Without dead ends: 350 [2024-11-27 19:54:48,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=356, Invalid=904, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 19:54:48,964 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 329 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:54:48,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1024 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 19:54:48,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-27 19:54:48,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 310. [2024-11-27 19:54:48,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 213 states have (on average 1.3615023474178405) internal successors, (290), 213 states have internal predecessors, (290), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:54:48,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 476 transitions. [2024-11-27 19:54:48,987 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 476 transitions. Word has length 200 [2024-11-27 19:54:48,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:54:48,988 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 476 transitions. [2024-11-27 19:54:48,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:54:48,988 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 476 transitions. [2024-11-27 19:54:48,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-27 19:54:48,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:54:48,989 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:54:48,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 19:54:48,990 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:54:48,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:54:48,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2139266060, now seen corresponding path program 1 times [2024-11-27 19:54:48,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:54:48,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334488364] [2024-11-27 19:54:48,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:54:48,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:54:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:04,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:55:04,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:04,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334488364] [2024-11-27 19:55:04,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334488364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:04,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:04,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-27 19:55:04,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313359202] [2024-11-27 19:55:04,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:04,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 19:55:04,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:04,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 19:55:04,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-27 19:55:04,449 INFO L87 Difference]: Start difference. First operand 310 states and 476 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-27 19:55:23,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:23,503 INFO L93 Difference]: Finished difference Result 356 states and 526 transitions. [2024-11-27 19:55:23,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 19:55:23,504 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 200 [2024-11-27 19:55:23,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:23,506 INFO L225 Difference]: With dead ends: 356 [2024-11-27 19:55:23,506 INFO L226 Difference]: Without dead ends: 354 [2024-11-27 19:55:23,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=375, Invalid=1031, Unknown=0, NotChecked=0, Total=1406 [2024-11-27 19:55:23,507 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 334 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:23,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1252 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-27 19:55:23,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-27 19:55:23,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 312. [2024-11-27 19:55:23,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 215 states have (on average 1.3627906976744186) internal successors, (293), 215 states have internal predecessors, (293), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:55:23,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 479 transitions. [2024-11-27 19:55:23,541 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 479 transitions. Word has length 200 [2024-11-27 19:55:23,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:23,541 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 479 transitions. [2024-11-27 19:55:23,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 3 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-27 19:55:23,542 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 479 transitions. [2024-11-27 19:55:23,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-27 19:55:23,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:23,543 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:23,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 19:55:23,544 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:23,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:23,544 INFO L85 PathProgramCache]: Analyzing trace with hash -594698330, now seen corresponding path program 1 times [2024-11-27 19:55:23,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:23,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547252960] [2024-11-27 19:55:23,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:23,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:35,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:55:35,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:35,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547252960] [2024-11-27 19:55:35,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547252960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:35,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:35,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-27 19:55:35,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987817884] [2024-11-27 19:55:35,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:35,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 19:55:35,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:35,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 19:55:35,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:55:35,931 INFO L87 Difference]: Start difference. First operand 312 states and 479 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:55:49,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:49,318 INFO L93 Difference]: Finished difference Result 356 states and 526 transitions. [2024-11-27 19:55:49,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 19:55:49,319 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 200 [2024-11-27 19:55:49,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:49,323 INFO L225 Difference]: With dead ends: 356 [2024-11-27 19:55:49,323 INFO L226 Difference]: Without dead ends: 354 [2024-11-27 19:55:49,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=353, Invalid=979, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 19:55:49,324 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 262 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:49,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1336 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 19:55:49,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-27 19:55:49,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 313. [2024-11-27 19:55:49,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 216 states have (on average 1.3611111111111112) internal successors, (294), 216 states have internal predecessors, (294), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:55:49,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 480 transitions. [2024-11-27 19:55:49,355 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 480 transitions. Word has length 200 [2024-11-27 19:55:49,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:49,355 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 480 transitions. [2024-11-27 19:55:49,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:55:49,356 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 480 transitions. [2024-11-27 19:55:49,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-27 19:55:49,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:49,357 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:49,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 19:55:49,358 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:55:49,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:49,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1746239050, now seen corresponding path program 1 times [2024-11-27 19:55:49,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:49,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648668503] [2024-11-27 19:55:49,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:49,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:06,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:56:06,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:06,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648668503] [2024-11-27 19:56:06,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648668503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:06,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:06,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-27 19:56:06,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385881143] [2024-11-27 19:56:06,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:06,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 19:56:06,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:06,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 19:56:06,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:56:06,702 INFO L87 Difference]: Start difference. First operand 313 states and 480 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:56:24,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:24,268 INFO L93 Difference]: Finished difference Result 352 states and 522 transitions. [2024-11-27 19:56:24,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 19:56:24,269 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2024-11-27 19:56:24,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:24,272 INFO L225 Difference]: With dead ends: 352 [2024-11-27 19:56:24,272 INFO L226 Difference]: Without dead ends: 350 [2024-11-27 19:56:24,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=392, Invalid=940, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 19:56:24,275 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 218 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:24,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1093 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-27 19:56:24,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-27 19:56:24,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 313. [2024-11-27 19:56:24,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 216 states have (on average 1.3611111111111112) internal successors, (294), 216 states have internal predecessors, (294), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:56:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 480 transitions. [2024-11-27 19:56:24,303 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 480 transitions. Word has length 200 [2024-11-27 19:56:24,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:24,304 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 480 transitions. [2024-11-27 19:56:24,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:56:24,304 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 480 transitions. [2024-11-27 19:56:24,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-27 19:56:24,305 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:24,306 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:56:24,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 19:56:24,306 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:24,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:24,307 INFO L85 PathProgramCache]: Analyzing trace with hash -987725340, now seen corresponding path program 1 times [2024-11-27 19:56:24,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:24,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289428847] [2024-11-27 19:56:24,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:24,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:37,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:56:37,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:37,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289428847] [2024-11-27 19:56:37,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289428847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:56:37,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:56:37,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-27 19:56:37,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878491509] [2024-11-27 19:56:37,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:56:37,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 19:56:37,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:37,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 19:56:37,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:56:37,793 INFO L87 Difference]: Start difference. First operand 313 states and 480 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:56:49,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:49,142 INFO L93 Difference]: Finished difference Result 346 states and 515 transitions. [2024-11-27 19:56:49,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 19:56:49,142 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 200 [2024-11-27 19:56:49,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:49,144 INFO L225 Difference]: With dead ends: 346 [2024-11-27 19:56:49,144 INFO L226 Difference]: Without dead ends: 344 [2024-11-27 19:56:49,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=393, Invalid=939, Unknown=0, NotChecked=0, Total=1332 [2024-11-27 19:56:49,145 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 230 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:49,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1154 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-27 19:56:49,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-27 19:56:49,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 311. [2024-11-27 19:56:49,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 214 states have (on average 1.3598130841121496) internal successors, (291), 214 states have internal predecessors, (291), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:56:49,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 477 transitions. [2024-11-27 19:56:49,170 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 477 transitions. Word has length 200 [2024-11-27 19:56:49,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:49,170 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 477 transitions. [2024-11-27 19:56:49,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:56:49,171 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 477 transitions. [2024-11-27 19:56:49,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-27 19:56:49,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:49,172 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:56:49,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 19:56:49,172 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:56:49,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:49,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1200430072, now seen corresponding path program 1 times [2024-11-27 19:56:49,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:49,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95862904] [2024-11-27 19:56:49,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:49,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:07,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:57:07,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:07,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95862904] [2024-11-27 19:57:07,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95862904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:07,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:07,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-27 19:57:07,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72531028] [2024-11-27 19:57:07,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:07,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 19:57:07,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:07,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 19:57:07,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-11-27 19:57:07,074 INFO L87 Difference]: Start difference. First operand 311 states and 477 transitions. Second operand has 20 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:57:33,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:33,532 INFO L93 Difference]: Finished difference Result 355 states and 525 transitions. [2024-11-27 19:57:33,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 19:57:33,533 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 201 [2024-11-27 19:57:33,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:33,534 INFO L225 Difference]: With dead ends: 355 [2024-11-27 19:57:33,534 INFO L226 Difference]: Without dead ends: 353 [2024-11-27 19:57:33,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 26.5s TimeCoverageRelationStatistics Valid=386, Invalid=1096, Unknown=0, NotChecked=0, Total=1482 [2024-11-27 19:57:33,535 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 296 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:33,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1315 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-27 19:57:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-27 19:57:33,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 311. [2024-11-27 19:57:33,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 214 states have (on average 1.3598130841121496) internal successors, (291), 214 states have internal predecessors, (291), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:57:33,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 477 transitions. [2024-11-27 19:57:33,559 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 477 transitions. Word has length 201 [2024-11-27 19:57:33,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:33,560 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 477 transitions. [2024-11-27 19:57:33,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 20 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:57:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 477 transitions. [2024-11-27 19:57:33,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-27 19:57:33,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:33,561 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:33,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 19:57:33,562 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:57:33,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:33,562 INFO L85 PathProgramCache]: Analyzing trace with hash -499365494, now seen corresponding path program 1 times [2024-11-27 19:57:33,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:33,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122412447] [2024-11-27 19:57:33,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:33,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:53,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 19:57:53,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:53,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122412447] [2024-11-27 19:57:53,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122412447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:53,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:53,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-27 19:57:53,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280640782] [2024-11-27 19:57:53,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:53,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 19:57:53,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:53,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 19:57:53,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-11-27 19:57:53,489 INFO L87 Difference]: Start difference. First operand 311 states and 477 transitions. Second operand has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 21 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:58:19,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:19,821 INFO L93 Difference]: Finished difference Result 345 states and 514 transitions. [2024-11-27 19:58:19,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 19:58:19,822 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 21 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 201 [2024-11-27 19:58:19,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:19,824 INFO L225 Difference]: With dead ends: 345 [2024-11-27 19:58:19,824 INFO L226 Difference]: Without dead ends: 343 [2024-11-27 19:58:19,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=424, Invalid=1136, Unknown=0, NotChecked=0, Total=1560 [2024-11-27 19:58:19,826 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 336 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:19,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1190 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-27 19:58:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-27 19:58:19,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 303. [2024-11-27 19:58:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 206 states have (on average 1.3592233009708738) internal successors, (280), 206 states have internal predecessors, (280), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:58:19,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 466 transitions. [2024-11-27 19:58:19,862 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 466 transitions. Word has length 201 [2024-11-27 19:58:19,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:19,867 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 466 transitions. [2024-11-27 19:58:19,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 21 states have internal predecessors, (49), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 19:58:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 466 transitions. [2024-11-27 19:58:19,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-27 19:58:19,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:19,873 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:19,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-27 19:58:19,873 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:58:19,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:19,874 INFO L85 PathProgramCache]: Analyzing trace with hash -704856996, now seen corresponding path program 1 times [2024-11-27 19:58:19,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:58:19,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034374637] [2024-11-27 19:58:19,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:58:19,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:58:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:58:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-27 19:58:30,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:58:30,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034374637] [2024-11-27 19:58:30,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034374637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:58:30,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:58:30,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 19:58:30,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272860978] [2024-11-27 19:58:30,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:58:30,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 19:58:30,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:58:30,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 19:58:30,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-27 19:58:30,066 INFO L87 Difference]: Start difference. First operand 303 states and 466 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:58:34,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:34,308 INFO L93 Difference]: Finished difference Result 601 states and 901 transitions. [2024-11-27 19:58:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 19:58:34,310 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 391 [2024-11-27 19:58:34,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:34,314 INFO L225 Difference]: With dead ends: 601 [2024-11-27 19:58:34,314 INFO L226 Difference]: Without dead ends: 408 [2024-11-27 19:58:34,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:58:34,316 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 91 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:34,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1189 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-27 19:58:34,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-27 19:58:34,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 318. [2024-11-27 19:58:34,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 221 states have (on average 1.3619909502262444) internal successors, (301), 221 states have internal predecessors, (301), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:58:34,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 487 transitions. [2024-11-27 19:58:34,354 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 487 transitions. Word has length 391 [2024-11-27 19:58:34,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:34,355 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 487 transitions. [2024-11-27 19:58:34,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:58:34,356 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 487 transitions. [2024-11-27 19:58:34,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-27 19:58:34,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:34,360 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:34,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-27 19:58:34,361 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:58:34,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:34,361 INFO L85 PathProgramCache]: Analyzing trace with hash 306260254, now seen corresponding path program 1 times [2024-11-27 19:58:34,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:58:34,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058807469] [2024-11-27 19:58:34,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:58:34,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:58:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:58:45,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-27 19:58:45,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:58:45,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058807469] [2024-11-27 19:58:45,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058807469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:58:45,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:58:45,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 19:58:45,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46060000] [2024-11-27 19:58:45,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:58:45,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 19:58:45,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:58:45,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 19:58:45,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-27 19:58:45,804 INFO L87 Difference]: Start difference. First operand 318 states and 487 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:58:50,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:50,250 INFO L93 Difference]: Finished difference Result 609 states and 915 transitions. [2024-11-27 19:58:50,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 19:58:50,252 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 391 [2024-11-27 19:58:50,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:50,255 INFO L225 Difference]: With dead ends: 609 [2024-11-27 19:58:50,255 INFO L226 Difference]: Without dead ends: 398 [2024-11-27 19:58:50,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:58:50,259 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 84 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:50,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1194 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-27 19:58:50,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-27 19:58:50,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 314. [2024-11-27 19:58:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 217 states have (on average 1.359447004608295) internal successors, (295), 217 states have internal predecessors, (295), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:58:50,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 481 transitions. [2024-11-27 19:58:50,296 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 481 transitions. Word has length 391 [2024-11-27 19:58:50,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:50,297 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 481 transitions. [2024-11-27 19:58:50,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:58:50,298 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 481 transitions. [2024-11-27 19:58:50,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-27 19:58:50,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:50,301 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:50,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 19:58:50,302 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:58:50,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:50,303 INFO L85 PathProgramCache]: Analyzing trace with hash -322228464, now seen corresponding path program 1 times [2024-11-27 19:58:50,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:58:50,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34925618] [2024-11-27 19:58:50,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:58:50,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:58:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:58:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-27 19:58:57,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:58:57,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34925618] [2024-11-27 19:58:57,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34925618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:58:57,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:58:57,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 19:58:57,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873066660] [2024-11-27 19:58:57,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:58:57,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 19:58:57,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:58:57,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 19:58:57,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:58:57,867 INFO L87 Difference]: Start difference. First operand 314 states and 481 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:58:59,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:58:59,451 INFO L93 Difference]: Finished difference Result 419 states and 610 transitions. [2024-11-27 19:58:59,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 19:58:59,452 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 392 [2024-11-27 19:58:59,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:58:59,455 INFO L225 Difference]: With dead ends: 419 [2024-11-27 19:58:59,455 INFO L226 Difference]: Without dead ends: 417 [2024-11-27 19:58:59,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-27 19:58:59,457 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 94 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:58:59,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 858 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 19:58:59,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-27 19:58:59,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 323. [2024-11-27 19:58:59,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 226 states have (on average 1.3628318584070795) internal successors, (308), 226 states have internal predecessors, (308), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:58:59,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 494 transitions. [2024-11-27 19:58:59,494 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 494 transitions. Word has length 392 [2024-11-27 19:58:59,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:58:59,495 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 494 transitions. [2024-11-27 19:58:59,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:58:59,496 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 494 transitions. [2024-11-27 19:58:59,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-27 19:58:59,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:58:59,500 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:58:59,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-27 19:58:59,500 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:58:59,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:58:59,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1240621484, now seen corresponding path program 1 times [2024-11-27 19:58:59,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:58:59,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121756642] [2024-11-27 19:58:59,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:58:59,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:58:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:59:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 67 proven. 2 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-11-27 19:59:13,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:59:13,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121756642] [2024-11-27 19:59:13,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121756642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:59:13,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298469320] [2024-11-27 19:59:13,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:59:13,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:59:13,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:59:13,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:59:13,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:59:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:59:13,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 19:59:13,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:59:14,980 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 4063 proven. 72 refuted. 0 times theorem prover too weak. 3498 trivial. 0 not checked. [2024-11-27 19:59:14,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:59:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 172 proven. 72 refuted. 0 times theorem prover too weak. 7389 trivial. 0 not checked. [2024-11-27 19:59:15,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298469320] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:59:15,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:59:15,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 7, 7] total 27 [2024-11-27 19:59:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994228180] [2024-11-27 19:59:15,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:59:15,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 19:59:15,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:59:15,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 19:59:15,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2024-11-27 19:59:15,980 INFO L87 Difference]: Start difference. First operand 323 states and 494 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 7 states have call successors, (116), 3 states have call predecessors, (116), 5 states have return successors, (116), 7 states have call predecessors, (116), 7 states have call successors, (116) [2024-11-27 19:59:24,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:59:24,203 INFO L93 Difference]: Finished difference Result 872 states and 1298 transitions. [2024-11-27 19:59:24,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-27 19:59:24,203 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 7 states have call successors, (116), 3 states have call predecessors, (116), 5 states have return successors, (116), 7 states have call predecessors, (116), 7 states have call successors, (116) Word has length 392 [2024-11-27 19:59:24,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:59:24,206 INFO L225 Difference]: With dead ends: 872 [2024-11-27 19:59:24,206 INFO L226 Difference]: Without dead ends: 645 [2024-11-27 19:59:24,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 830 GetRequests, 781 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=447, Invalid=2003, Unknown=0, NotChecked=0, Total=2450 [2024-11-27 19:59:24,208 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 691 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:59:24,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1796 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-27 19:59:24,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-27 19:59:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 324. [2024-11-27 19:59:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 224 states have (on average 1.3348214285714286) internal successors, (299), 224 states have internal predecessors, (299), 93 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:59:24,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 485 transitions. [2024-11-27 19:59:24,272 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 485 transitions. Word has length 392 [2024-11-27 19:59:24,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:59:24,273 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 485 transitions. [2024-11-27 19:59:24,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 7 states have call successors, (116), 3 states have call predecessors, (116), 5 states have return successors, (116), 7 states have call predecessors, (116), 7 states have call successors, (116) [2024-11-27 19:59:24,274 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 485 transitions. [2024-11-27 19:59:24,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-27 19:59:24,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:59:24,278 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:59:24,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:59:24,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 19:59:24,479 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:59:24,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:59:24,480 INFO L85 PathProgramCache]: Analyzing trace with hash 796498761, now seen corresponding path program 1 times [2024-11-27 19:59:24,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:59:24,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100906191] [2024-11-27 19:59:24,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:59:24,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:59:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:59:33,777 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-27 19:59:33,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:59:33,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100906191] [2024-11-27 19:59:33,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100906191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:59:33,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:59:33,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 19:59:33,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553009583] [2024-11-27 19:59:33,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:59:33,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:59:33,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:59:33,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:59:33,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:59:33,780 INFO L87 Difference]: Start difference. First operand 324 states and 485 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:59:37,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:59:37,256 INFO L93 Difference]: Finished difference Result 416 states and 592 transitions. [2024-11-27 19:59:37,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 19:59:37,257 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 392 [2024-11-27 19:59:37,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:59:37,259 INFO L225 Difference]: With dead ends: 416 [2024-11-27 19:59:37,259 INFO L226 Difference]: Without dead ends: 414 [2024-11-27 19:59:37,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:59:37,261 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 83 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:59:37,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1106 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 19:59:37,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-27 19:59:37,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 331. [2024-11-27 19:59:37,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 231 states have (on average 1.3333333333333333) internal successors, (308), 231 states have internal predecessors, (308), 93 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:59:37,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 494 transitions. [2024-11-27 19:59:37,305 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 494 transitions. Word has length 392 [2024-11-27 19:59:37,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:59:37,306 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 494 transitions. [2024-11-27 19:59:37,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:59:37,306 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 494 transitions. [2024-11-27 19:59:37,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-27 19:59:37,309 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:59:37,310 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:59:37,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-27 19:59:37,310 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:59:37,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:59:37,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1476557131, now seen corresponding path program 1 times [2024-11-27 19:59:37,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:59:37,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074459902] [2024-11-27 19:59:37,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:59:37,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:59:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:59:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-27 19:59:45,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:59:45,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074459902] [2024-11-27 19:59:45,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074459902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:59:45,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:59:45,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 19:59:45,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709599699] [2024-11-27 19:59:45,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:59:45,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:59:45,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:59:45,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:59:45,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:59:45,983 INFO L87 Difference]: Start difference. First operand 331 states and 494 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:59:50,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:59:50,996 INFO L93 Difference]: Finished difference Result 400 states and 575 transitions. [2024-11-27 19:59:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 19:59:50,997 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 392 [2024-11-27 19:59:50,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:59:51,000 INFO L225 Difference]: With dead ends: 400 [2024-11-27 19:59:51,000 INFO L226 Difference]: Without dead ends: 398 [2024-11-27 19:59:51,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:59:51,002 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 91 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:59:51,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1091 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 19:59:51,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-27 19:59:51,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 331. [2024-11-27 19:59:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 231 states have (on average 1.3333333333333333) internal successors, (308), 231 states have internal predecessors, (308), 93 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 19:59:51,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 494 transitions. [2024-11-27 19:59:51,053 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 494 transitions. Word has length 392 [2024-11-27 19:59:51,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:59:51,054 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 494 transitions. [2024-11-27 19:59:51,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 19:59:51,054 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 494 transitions. [2024-11-27 19:59:51,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-27 19:59:51,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:59:51,058 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:59:51,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-27 19:59:51,058 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:59:51,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:59:51,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2082895369, now seen corresponding path program 1 times [2024-11-27 19:59:51,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:59:51,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673566081] [2024-11-27 19:59:51,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:59:51,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:59:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:59:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7620 trivial. 0 not checked. [2024-11-27 19:59:59,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:59:59,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673566081] [2024-11-27 19:59:59,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673566081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:59:59,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:59:59,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 19:59:59,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100231953] [2024-11-27 19:59:59,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:59:59,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 19:59:59,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:59:59,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 19:59:59,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:59:59,562 INFO L87 Difference]: Start difference. First operand 331 states and 494 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 20:00:03,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:00:03,345 INFO L93 Difference]: Finished difference Result 653 states and 947 transitions. [2024-11-27 20:00:03,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:00:03,347 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 392 [2024-11-27 20:00:03,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:00:03,350 INFO L225 Difference]: With dead ends: 653 [2024-11-27 20:00:03,350 INFO L226 Difference]: Without dead ends: 421 [2024-11-27 20:00:03,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:00:03,352 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 106 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:00:03,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 843 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 20:00:03,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-27 20:00:03,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 333. [2024-11-27 20:00:03,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 233 states have (on average 1.3390557939914163) internal successors, (312), 233 states have internal predecessors, (312), 93 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 20:00:03,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 498 transitions. [2024-11-27 20:00:03,406 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 498 transitions. Word has length 392 [2024-11-27 20:00:03,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:00:03,407 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 498 transitions. [2024-11-27 20:00:03,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 20:00:03,407 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 498 transitions. [2024-11-27 20:00:03,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-27 20:00:03,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:00:03,411 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:00:03,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-27 20:00:03,411 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:00:03,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:00:03,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1824729931, now seen corresponding path program 1 times [2024-11-27 20:00:03,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:00:03,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690730396] [2024-11-27 20:00:03,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:00:03,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:00:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:00:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-11-27 20:00:04,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:00:04,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690730396] [2024-11-27 20:00:04,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690730396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:00:04,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:00:04,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:00:04,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841013808] [2024-11-27 20:00:04,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:00:04,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:00:04,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:00:04,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:00:04,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:00:04,019 INFO L87 Difference]: Start difference. First operand 333 states and 498 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-27 20:00:04,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:00:04,391 INFO L93 Difference]: Finished difference Result 839 states and 1237 transitions. [2024-11-27 20:00:04,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:00:04,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 392 [2024-11-27 20:00:04,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:00:04,395 INFO L225 Difference]: With dead ends: 839 [2024-11-27 20:00:04,395 INFO L226 Difference]: Without dead ends: 605 [2024-11-27 20:00:04,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:00:04,396 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 296 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:00:04,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 833 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:00:04,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-27 20:00:04,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 462. [2024-11-27 20:00:04,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 329 states have (on average 1.3404255319148937) internal successors, (441), 329 states have internal predecessors, (441), 124 states have call successors, (124), 8 states have call predecessors, (124), 8 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-27 20:00:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 689 transitions. [2024-11-27 20:00:04,491 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 689 transitions. Word has length 392 [2024-11-27 20:00:04,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:00:04,491 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 689 transitions. [2024-11-27 20:00:04,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-27 20:00:04,492 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 689 transitions. [2024-11-27 20:00:04,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-27 20:00:04,495 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:00:04,495 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:00:04,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-27 20:00:04,495 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:00:04,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:00:04,496 INFO L85 PathProgramCache]: Analyzing trace with hash 957635214, now seen corresponding path program 1 times [2024-11-27 20:00:04,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:00:04,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582880870] [2024-11-27 20:00:04,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:00:04,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:00:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:00:19,395 INFO L134 CoverageAnalysis]: Checked inductivity of 7633 backedges. 5 proven. 64 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-11-27 20:00:19,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:00:19,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582880870] [2024-11-27 20:00:19,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582880870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:00:19,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564649716] [2024-11-27 20:00:19,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:00:19,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:00:19,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:00:19,397 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:00:19,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d974eee-1cef-437d-8bba-767fe7b411c0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:00:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:00:19,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-11-27 20:00:19,676 INFO L279 TraceCheckSpWp]: Computing forward predicates...