./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e82362cf624f0e845caa7a60d1834859999824a1181a9b545ac94ec06fd3aa08 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:35:04,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:35:05,017 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:35:05,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:35:05,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:35:05,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:35:05,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:35:05,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:35:05,082 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:35:05,082 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:35:05,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:35:05,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:35:05,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:35:05,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:35:05,084 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:35:05,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:35:05,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:35:05,086 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:35:05,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:35:05,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:35:05,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:35:05,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:35:05,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:35:05,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:35:05,088 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:35:05,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:35:05,088 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:35:05,088 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:35:05,088 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:35:05,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:35:05,088 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:35:05,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:35:05,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:35:05,089 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:35:05,089 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:35:05,089 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:35:05,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:35:05,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:35:05,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:35:05,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:35:05,090 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:35:05,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:35:05,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:35:05,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:35:05,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:35:05,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:35:05,092 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:35:05,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:35:05,092 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_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e82362cf624f0e845caa7a60d1834859999824a1181a9b545ac94ec06fd3aa08 [2024-11-23 18:35:05,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:35:05,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:35:05,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:35:05,511 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:35:05,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:35:05,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c [2024-11-23 18:35:08,857 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/data/5380b50be/9cc513b8d9f64d51a421da2d5c3034af/FLAG80ed41f0a [2024-11-23 18:35:09,151 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:35:09,155 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c [2024-11-23 18:35:09,177 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/data/5380b50be/9cc513b8d9f64d51a421da2d5c3034af/FLAG80ed41f0a [2024-11-23 18:35:09,199 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/data/5380b50be/9cc513b8d9f64d51a421da2d5c3034af [2024-11-23 18:35:09,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:35:09,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:35:09,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:35:09,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:35:09,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:35:09,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e9d486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09, skipping insertion in model container [2024-11-23 18:35:09,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:35:09,527 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_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c[26481,26494] [2024-11-23 18:35:09,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:35:09,544 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:35:09,638 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_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c[26481,26494] [2024-11-23 18:35:09,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:35:09,665 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:35:09,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09 WrapperNode [2024-11-23 18:35:09,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:35:09,667 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:35:09,667 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:35:09,667 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:35:09,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,762 INFO L138 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 529 [2024-11-23 18:35:09,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:35:09,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:35:09,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:35:09,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:35:09,781 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,791 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,833 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:35:09,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,859 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,865 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:35:09,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:35:09,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:35:09,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:35:09,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (1/1) ... [2024-11-23 18:35:09,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:35:09,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:35:09,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:35:09,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1757abb5-1fe9-4cad-9b5e-ae6a88b75d8a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:35:09,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:35:09,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:35:09,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:35:09,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:35:10,174 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:35:10,176 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:35:11,082 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-23 18:35:11,082 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:35:11,097 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:35:11,097 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:35:11,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:35:11 BoogieIcfgContainer [2024-11-23 18:35:11,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:35:11,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:35:11,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:35:11,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:35:11,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:35:09" (1/3) ... [2024-11-23 18:35:11,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130dfc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:35:11, skipping insertion in model container [2024-11-23 18:35:11,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:35:09" (2/3) ... [2024-11-23 18:35:11,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130dfc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:35:11, skipping insertion in model container [2024-11-23 18:35:11,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:35:11" (3/3) ... [2024-11-23 18:35:11,112 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals.c [2024-11-23 18:35:11,129 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:35:11,134 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.ufo.UNBOUNDED.pals.c that has 1 procedures, 133 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:35:11,212 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:35:11,227 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;@3dada075, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:35:11,227 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:35:11,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 131 states have (on average 1.7938931297709924) internal successors, (235), 132 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-23 18:35:11,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:11,241 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:11,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:11,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:11,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1185784111, now seen corresponding path program 1 times [2024-11-23 18:35:11,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:11,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13840715] [2024-11-23 18:35:11,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:11,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:11,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:11,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13840715] [2024-11-23 18:35:11,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13840715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:11,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:11,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:35:11,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660755922] [2024-11-23 18:35:11,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:11,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:35:11,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:11,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:35:11,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:35:11,811 INFO L87 Difference]: Start difference. First operand has 133 states, 131 states have (on average 1.7938931297709924) internal successors, (235), 132 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:11,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:11,846 INFO L93 Difference]: Finished difference Result 196 states and 339 transitions. [2024-11-23 18:35:11,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:35:11,849 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-23 18:35:11,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:11,858 INFO L225 Difference]: With dead ends: 196 [2024-11-23 18:35:11,859 INFO L226 Difference]: Without dead ends: 129 [2024-11-23 18:35:11,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:35:11,866 INFO L435 NwaCegarLoop]: 228 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, 228 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:11,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:11,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-23 18:35:11,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-23 18:35:11,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.78125) internal successors, (228), 128 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:11,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 228 transitions. [2024-11-23 18:35:11,920 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 228 transitions. Word has length 29 [2024-11-23 18:35:11,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:11,921 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 228 transitions. [2024-11-23 18:35:11,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:11,922 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 228 transitions. [2024-11-23 18:35:11,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-23 18:35:11,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:11,923 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:11,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:35:11,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:11,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:11,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1319797617, now seen corresponding path program 1 times [2024-11-23 18:35:11,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:11,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730444353] [2024-11-23 18:35:11,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:11,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:12,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:12,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730444353] [2024-11-23 18:35:12,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730444353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:12,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:12,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:35:12,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416202539] [2024-11-23 18:35:12,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:12,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:35:12,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:12,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:35:12,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:12,471 INFO L87 Difference]: Start difference. First operand 129 states and 228 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:12,655 INFO L93 Difference]: Finished difference Result 195 states and 332 transitions. [2024-11-23 18:35:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:35:12,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-23 18:35:12,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:12,657 INFO L225 Difference]: With dead ends: 195 [2024-11-23 18:35:12,657 INFO L226 Difference]: Without dead ends: 129 [2024-11-23 18:35:12,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:35:12,659 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:12,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 838 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:35:12,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-23 18:35:12,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-23 18:35:12,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.3046875) internal successors, (167), 128 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:12,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 167 transitions. [2024-11-23 18:35:12,668 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 167 transitions. Word has length 29 [2024-11-23 18:35:12,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:12,668 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 167 transitions. [2024-11-23 18:35:12,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 167 transitions. [2024-11-23 18:35:12,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-23 18:35:12,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:12,671 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:12,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:35:12,671 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:12,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:12,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1496007295, now seen corresponding path program 1 times [2024-11-23 18:35:12,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:12,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132984797] [2024-11-23 18:35:12,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:12,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:13,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:13,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:13,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132984797] [2024-11-23 18:35:13,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132984797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:13,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:13,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:35:13,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139939607] [2024-11-23 18:35:13,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:13,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:35:13,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:13,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:35:13,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:35:13,424 INFO L87 Difference]: Start difference. First operand 129 states and 167 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:14,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:14,344 INFO L93 Difference]: Finished difference Result 1121 states and 1767 transitions. [2024-11-23 18:35:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 18:35:14,359 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-23 18:35:14,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:14,369 INFO L225 Difference]: With dead ends: 1121 [2024-11-23 18:35:14,371 INFO L226 Difference]: Without dead ends: 1059 [2024-11-23 18:35:14,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-23 18:35:14,373 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1981 mSDsluCounter, 4380 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:14,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1981 Valid, 4541 Invalid, 341 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:35:14,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-11-23 18:35:14,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 189. [2024-11-23 18:35:14,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 1.4042553191489362) internal successors, (264), 188 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:14,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 264 transitions. [2024-11-23 18:35:14,428 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 264 transitions. Word has length 89 [2024-11-23 18:35:14,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:14,429 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 264 transitions. [2024-11-23 18:35:14,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:14,429 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 264 transitions. [2024-11-23 18:35:14,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-23 18:35:14,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:14,434 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:14,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:35:14,434 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:14,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:14,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1728245231, now seen corresponding path program 1 times [2024-11-23 18:35:14,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:14,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876433245] [2024-11-23 18:35:14,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:14,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:14,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:14,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:14,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876433245] [2024-11-23 18:35:14,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876433245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:14,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:14,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:35:14,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622322733] [2024-11-23 18:35:14,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:14,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:35:14,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:14,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:35:14,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:14,683 INFO L87 Difference]: Start difference. First operand 189 states and 264 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:14,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:14,731 INFO L93 Difference]: Finished difference Result 422 states and 639 transitions. [2024-11-23 18:35:14,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:35:14,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-23 18:35:14,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:14,733 INFO L225 Difference]: With dead ends: 422 [2024-11-23 18:35:14,736 INFO L226 Difference]: Without dead ends: 300 [2024-11-23 18:35:14,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:14,738 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 69 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:14,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 256 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:14,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-23 18:35:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 296. [2024-11-23 18:35:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.471186440677966) internal successors, (434), 295 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:14,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 434 transitions. [2024-11-23 18:35:14,765 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 434 transitions. Word has length 91 [2024-11-23 18:35:14,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:14,766 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 434 transitions. [2024-11-23 18:35:14,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:14,767 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 434 transitions. [2024-11-23 18:35:14,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-23 18:35:14,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:14,769 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:14,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:35:14,769 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:14,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:14,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1794738743, now seen corresponding path program 1 times [2024-11-23 18:35:14,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:14,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993243818] [2024-11-23 18:35:14,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:14,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:15,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:15,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:15,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993243818] [2024-11-23 18:35:15,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993243818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:15,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:15,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:35:15,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169389156] [2024-11-23 18:35:15,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:15,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:35:15,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:15,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:35:15,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:35:15,759 INFO L87 Difference]: Start difference. First operand 296 states and 434 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:16,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:16,518 INFO L93 Difference]: Finished difference Result 527 states and 802 transitions. [2024-11-23 18:35:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:35:16,519 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-23 18:35:16,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:16,521 INFO L225 Difference]: With dead ends: 527 [2024-11-23 18:35:16,521 INFO L226 Difference]: Without dead ends: 298 [2024-11-23 18:35:16,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:35:16,523 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 644 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:16,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 840 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 18:35:16,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-23 18:35:16,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 296. [2024-11-23 18:35:16,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.464406779661017) internal successors, (432), 295 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 432 transitions. [2024-11-23 18:35:16,549 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 432 transitions. Word has length 91 [2024-11-23 18:35:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:16,550 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 432 transitions. [2024-11-23 18:35:16,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:16,550 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 432 transitions. [2024-11-23 18:35:16,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-23 18:35:16,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:16,552 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:16,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:35:16,552 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:16,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:16,558 INFO L85 PathProgramCache]: Analyzing trace with hash -612396632, now seen corresponding path program 1 times [2024-11-23 18:35:16,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:16,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630337417] [2024-11-23 18:35:16,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:16,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:17,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:17,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630337417] [2024-11-23 18:35:17,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630337417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:17,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:17,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 18:35:17,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690503719] [2024-11-23 18:35:17,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:17,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 18:35:17,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:17,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 18:35:17,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:35:17,110 INFO L87 Difference]: Start difference. First operand 296 states and 432 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:17,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:17,181 INFO L93 Difference]: Finished difference Result 304 states and 441 transitions. [2024-11-23 18:35:17,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 18:35:17,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-23 18:35:17,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:17,185 INFO L225 Difference]: With dead ends: 304 [2024-11-23 18:35:17,186 INFO L226 Difference]: Without dead ends: 302 [2024-11-23 18:35:17,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 18:35:17,192 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:17,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1114 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:35:17,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-23 18:35:17,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2024-11-23 18:35:17,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.451827242524917) internal successors, (437), 301 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:17,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 437 transitions. [2024-11-23 18:35:17,216 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 437 transitions. Word has length 92 [2024-11-23 18:35:17,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:17,216 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 437 transitions. [2024-11-23 18:35:17,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:17,216 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 437 transitions. [2024-11-23 18:35:17,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 18:35:17,221 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:17,222 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:17,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:35:17,222 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:17,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:17,223 INFO L85 PathProgramCache]: Analyzing trace with hash 759003703, now seen corresponding path program 1 times [2024-11-23 18:35:17,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:17,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961304402] [2024-11-23 18:35:17,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:17,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:17,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:17,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961304402] [2024-11-23 18:35:17,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961304402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:17,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:17,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:35:17,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319369736] [2024-11-23 18:35:17,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:17,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:35:17,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:17,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:35:17,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:17,393 INFO L87 Difference]: Start difference. First operand 302 states and 437 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:17,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:17,441 INFO L93 Difference]: Finished difference Result 756 states and 1149 transitions. [2024-11-23 18:35:17,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:35:17,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-23 18:35:17,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:17,446 INFO L225 Difference]: With dead ends: 756 [2024-11-23 18:35:17,448 INFO L226 Difference]: Without dead ends: 521 [2024-11-23 18:35:17,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:17,450 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 88 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:17,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 349 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-23 18:35:17,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 519. [2024-11-23 18:35:17,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 518 states have (on average 1.494208494208494) internal successors, (774), 518 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:17,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 774 transitions. [2024-11-23 18:35:17,485 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 774 transitions. Word has length 93 [2024-11-23 18:35:17,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:17,486 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 774 transitions. [2024-11-23 18:35:17,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:17,486 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 774 transitions. [2024-11-23 18:35:17,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 18:35:17,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:17,488 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:17,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:35:17,488 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:17,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:17,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1593894089, now seen corresponding path program 1 times [2024-11-23 18:35:17,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:17,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642646051] [2024-11-23 18:35:17,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:17,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:17,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:17,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:17,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642646051] [2024-11-23 18:35:17,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642646051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:17,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:17,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:35:17,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876263616] [2024-11-23 18:35:17,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:17,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:35:17,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:17,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:35:17,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:17,628 INFO L87 Difference]: Start difference. First operand 519 states and 774 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:17,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:17,672 INFO L93 Difference]: Finished difference Result 1391 states and 2132 transitions. [2024-11-23 18:35:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:35:17,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-23 18:35:17,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:17,677 INFO L225 Difference]: With dead ends: 1391 [2024-11-23 18:35:17,678 INFO L226 Difference]: Without dead ends: 939 [2024-11-23 18:35:17,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:17,679 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 86 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:17,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 351 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:17,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-11-23 18:35:17,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 937. [2024-11-23 18:35:17,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 936 states have (on average 1.5128205128205128) internal successors, (1416), 936 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:17,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1416 transitions. [2024-11-23 18:35:17,760 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1416 transitions. Word has length 93 [2024-11-23 18:35:17,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:17,760 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1416 transitions. [2024-11-23 18:35:17,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:17,761 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1416 transitions. [2024-11-23 18:35:17,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 18:35:17,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:17,762 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:17,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:35:17,763 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:17,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:17,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1430979529, now seen corresponding path program 1 times [2024-11-23 18:35:17,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:17,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69388297] [2024-11-23 18:35:17,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:17,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:17,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:17,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69388297] [2024-11-23 18:35:17,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69388297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:17,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:17,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:35:17,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429241271] [2024-11-23 18:35:17,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:17,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:35:17,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:17,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:35:17,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:17,914 INFO L87 Difference]: Start difference. First operand 937 states and 1416 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:17,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:17,973 INFO L93 Difference]: Finished difference Result 2613 states and 4002 transitions. [2024-11-23 18:35:17,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:35:17,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-23 18:35:17,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:17,981 INFO L225 Difference]: With dead ends: 2613 [2024-11-23 18:35:17,981 INFO L226 Difference]: Without dead ends: 1743 [2024-11-23 18:35:17,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:17,983 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 84 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:17,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 353 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:17,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-23 18:35:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1741. [2024-11-23 18:35:18,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1740 states have (on average 1.5149425287356322) internal successors, (2636), 1740 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2636 transitions. [2024-11-23 18:35:18,055 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2636 transitions. Word has length 93 [2024-11-23 18:35:18,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:18,055 INFO L471 AbstractCegarLoop]: Abstraction has 1741 states and 2636 transitions. [2024-11-23 18:35:18,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:18,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2636 transitions. [2024-11-23 18:35:18,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 18:35:18,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:18,057 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:18,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:35:18,057 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:18,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:18,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1167123145, now seen corresponding path program 1 times [2024-11-23 18:35:18,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:18,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263960991] [2024-11-23 18:35:18,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:18,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:18,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:18,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:18,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263960991] [2024-11-23 18:35:18,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263960991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:18,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:18,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:35:18,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717480286] [2024-11-23 18:35:18,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:18,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:35:18,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:18,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:35:18,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:18,187 INFO L87 Difference]: Start difference. First operand 1741 states and 2636 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:18,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:18,291 INFO L93 Difference]: Finished difference Result 4961 states and 7550 transitions. [2024-11-23 18:35:18,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:35:18,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-23 18:35:18,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:18,306 INFO L225 Difference]: With dead ends: 4961 [2024-11-23 18:35:18,306 INFO L226 Difference]: Without dead ends: 3287 [2024-11-23 18:35:18,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:18,310 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 82 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:18,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 355 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:18,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2024-11-23 18:35:18,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3285. [2024-11-23 18:35:18,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 3284 states have (on average 1.5066991473812423) internal successors, (4948), 3284 states have internal predecessors, (4948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:18,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4948 transitions. [2024-11-23 18:35:18,457 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4948 transitions. Word has length 93 [2024-11-23 18:35:18,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:18,458 INFO L471 AbstractCegarLoop]: Abstraction has 3285 states and 4948 transitions. [2024-11-23 18:35:18,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:18,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4948 transitions. [2024-11-23 18:35:18,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 18:35:18,459 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:18,459 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:18,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:35:18,460 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:18,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:18,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2144329929, now seen corresponding path program 1 times [2024-11-23 18:35:18,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:18,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186921775] [2024-11-23 18:35:18,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:18,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:18,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:18,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186921775] [2024-11-23 18:35:18,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186921775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:18,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:18,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:35:18,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459087866] [2024-11-23 18:35:18,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:18,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:35:18,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:18,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:35:18,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:18,574 INFO L87 Difference]: Start difference. First operand 3285 states and 4948 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:18,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:18,758 INFO L93 Difference]: Finished difference Result 9465 states and 14262 transitions. [2024-11-23 18:35:18,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:35:18,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-23 18:35:18,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:18,791 INFO L225 Difference]: With dead ends: 9465 [2024-11-23 18:35:18,791 INFO L226 Difference]: Without dead ends: 6247 [2024-11-23 18:35:18,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:18,798 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 78 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:18,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 351 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:18,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6247 states. [2024-11-23 18:35:19,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6247 to 6245. [2024-11-23 18:35:19,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6245 states, 6244 states have (on average 1.4919923126201153) internal successors, (9316), 6244 states have internal predecessors, (9316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:19,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6245 states to 6245 states and 9316 transitions. [2024-11-23 18:35:19,145 INFO L78 Accepts]: Start accepts. Automaton has 6245 states and 9316 transitions. Word has length 93 [2024-11-23 18:35:19,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:19,145 INFO L471 AbstractCegarLoop]: Abstraction has 6245 states and 9316 transitions. [2024-11-23 18:35:19,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:19,146 INFO L276 IsEmpty]: Start isEmpty. Operand 6245 states and 9316 transitions. [2024-11-23 18:35:19,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 18:35:19,149 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:19,149 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:19,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:35:19,150 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:19,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:19,151 INFO L85 PathProgramCache]: Analyzing trace with hash -363397065, now seen corresponding path program 1 times [2024-11-23 18:35:19,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:19,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772896438] [2024-11-23 18:35:19,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:19,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:19,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:19,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:19,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772896438] [2024-11-23 18:35:19,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772896438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:19,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:19,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:35:19,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145695200] [2024-11-23 18:35:19,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:19,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:35:19,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:19,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:35:19,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:19,306 INFO L87 Difference]: Start difference. First operand 6245 states and 9316 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:19,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:19,731 INFO L93 Difference]: Finished difference Result 18089 states and 26918 transitions. [2024-11-23 18:35:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:35:19,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-23 18:35:19,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:19,809 INFO L225 Difference]: With dead ends: 18089 [2024-11-23 18:35:19,809 INFO L226 Difference]: Without dead ends: 11911 [2024-11-23 18:35:19,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:19,818 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 76 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:19,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 353 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:19,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11911 states. [2024-11-23 18:35:20,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11911 to 11909. [2024-11-23 18:35:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11909 states, 11908 states have (on average 1.472959355055425) internal successors, (17540), 11908 states have internal predecessors, (17540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:20,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11909 states to 11909 states and 17540 transitions. [2024-11-23 18:35:20,562 INFO L78 Accepts]: Start accepts. Automaton has 11909 states and 17540 transitions. Word has length 93 [2024-11-23 18:35:20,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:20,562 INFO L471 AbstractCegarLoop]: Abstraction has 11909 states and 17540 transitions. [2024-11-23 18:35:20,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 11909 states and 17540 transitions. [2024-11-23 18:35:20,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-23 18:35:20,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:20,565 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:20,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:35:20,565 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:20,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:20,566 INFO L85 PathProgramCache]: Analyzing trace with hash 71138871, now seen corresponding path program 1 times [2024-11-23 18:35:20,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:20,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389755245] [2024-11-23 18:35:20,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:20,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:20,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:20,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:20,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389755245] [2024-11-23 18:35:20,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389755245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:20,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:20,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:35:20,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250397118] [2024-11-23 18:35:20,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:20,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:35:20,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:20,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:35:20,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:20,751 INFO L87 Difference]: Start difference. First operand 11909 states and 17540 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:21,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:21,474 INFO L93 Difference]: Finished difference Result 34569 states and 50694 transitions. [2024-11-23 18:35:21,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:35:21,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-23 18:35:21,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:21,551 INFO L225 Difference]: With dead ends: 34569 [2024-11-23 18:35:21,551 INFO L226 Difference]: Without dead ends: 22727 [2024-11-23 18:35:21,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:21,568 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 80 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:21,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 357 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:21,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22727 states. [2024-11-23 18:35:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22727 to 22725. [2024-11-23 18:35:22,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22725 states, 22724 states have (on average 1.4506248899841576) internal successors, (32964), 22724 states have internal predecessors, (32964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:22,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22725 states to 22725 states and 32964 transitions. [2024-11-23 18:35:22,586 INFO L78 Accepts]: Start accepts. Automaton has 22725 states and 32964 transitions. Word has length 93 [2024-11-23 18:35:22,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:22,587 INFO L471 AbstractCegarLoop]: Abstraction has 22725 states and 32964 transitions. [2024-11-23 18:35:22,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:22,587 INFO L276 IsEmpty]: Start isEmpty. Operand 22725 states and 32964 transitions. [2024-11-23 18:35:22,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-23 18:35:22,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:22,588 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:22,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 18:35:22,588 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:22,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:22,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1748186322, now seen corresponding path program 1 times [2024-11-23 18:35:22,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:22,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539102986] [2024-11-23 18:35:22,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:22,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:22,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:35:22,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:22,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539102986] [2024-11-23 18:35:22,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539102986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:22,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:22,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:35:22,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100880112] [2024-11-23 18:35:22,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:22,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:35:22,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:22,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:35:22,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:22,761 INFO L87 Difference]: Start difference. First operand 22725 states and 32964 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:23,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:23,606 INFO L93 Difference]: Finished difference Result 46284 states and 67530 transitions. [2024-11-23 18:35:23,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:35:23,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-23 18:35:23,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:23,729 INFO L225 Difference]: With dead ends: 46284 [2024-11-23 18:35:23,730 INFO L226 Difference]: Without dead ends: 33737 [2024-11-23 18:35:23,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:35:23,759 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 87 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:23,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 350 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:35:23,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33737 states. [2024-11-23 18:35:25,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33737 to 33735. [2024-11-23 18:35:25,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33735 states, 33734 states have (on average 1.4439437955771626) internal successors, (48710), 33734 states have internal predecessors, (48710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:25,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33735 states to 33735 states and 48710 transitions. [2024-11-23 18:35:25,504 INFO L78 Accepts]: Start accepts. Automaton has 33735 states and 48710 transitions. Word has length 95 [2024-11-23 18:35:25,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:25,506 INFO L471 AbstractCegarLoop]: Abstraction has 33735 states and 48710 transitions. [2024-11-23 18:35:25,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:25,506 INFO L276 IsEmpty]: Start isEmpty. Operand 33735 states and 48710 transitions. [2024-11-23 18:35:25,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 18:35:25,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:25,516 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:25,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 18:35:25,516 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:25,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:25,517 INFO L85 PathProgramCache]: Analyzing trace with hash -467827745, now seen corresponding path program 1 times [2024-11-23 18:35:25,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:25,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088191269] [2024-11-23 18:35:25,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:25,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:26,076 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 18:35:26,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:26,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088191269] [2024-11-23 18:35:26,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088191269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:26,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:26,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:35:26,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410357455] [2024-11-23 18:35:26,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:26,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:35:26,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:26,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:35:26,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:35:26,081 INFO L87 Difference]: Start difference. First operand 33735 states and 48710 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:32,298 INFO L93 Difference]: Finished difference Result 309849 states and 447311 transitions. [2024-11-23 18:35:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:35:32,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-23 18:35:32,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:33,277 INFO L225 Difference]: With dead ends: 309849 [2024-11-23 18:35:33,278 INFO L226 Difference]: Without dead ends: 276183 [2024-11-23 18:35:33,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-23 18:35:33,429 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 1681 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:33,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 2311 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 18:35:33,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276183 states. [2024-11-23 18:35:38,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276183 to 67399. [2024-11-23 18:35:38,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67399 states, 67398 states have (on average 1.4387073800409507) internal successors, (96966), 67398 states have internal predecessors, (96966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:38,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67399 states to 67399 states and 96966 transitions. [2024-11-23 18:35:38,478 INFO L78 Accepts]: Start accepts. Automaton has 67399 states and 96966 transitions. Word has length 118 [2024-11-23 18:35:38,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:38,479 INFO L471 AbstractCegarLoop]: Abstraction has 67399 states and 96966 transitions. [2024-11-23 18:35:38,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:38,480 INFO L276 IsEmpty]: Start isEmpty. Operand 67399 states and 96966 transitions. [2024-11-23 18:35:38,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 18:35:38,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:38,494 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:38,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 18:35:38,495 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:38,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:38,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1474241759, now seen corresponding path program 1 times [2024-11-23 18:35:38,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:38,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545237967] [2024-11-23 18:35:38,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:38,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 18:35:39,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:39,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545237967] [2024-11-23 18:35:39,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545237967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:39,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:39,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:35:39,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689661637] [2024-11-23 18:35:39,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:39,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:35:39,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:39,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:35:39,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:35:39,172 INFO L87 Difference]: Start difference. First operand 67399 states and 96966 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:47,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:35:47,518 INFO L93 Difference]: Finished difference Result 343513 states and 495567 transitions. [2024-11-23 18:35:47,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:35:47,519 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-23 18:35:47,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:35:48,181 INFO L225 Difference]: With dead ends: 343513 [2024-11-23 18:35:48,181 INFO L226 Difference]: Without dead ends: 309847 [2024-11-23 18:35:48,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-23 18:35:48,289 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 1706 mSDsluCounter, 1877 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 2144 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:35:48,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 2144 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:35:48,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309847 states. [2024-11-23 18:35:53,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309847 to 117959. [2024-11-23 18:35:54,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117959 states, 117958 states have (on average 1.4329676664575526) internal successors, (169030), 117958 states have internal predecessors, (169030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:54,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117959 states to 117959 states and 169030 transitions. [2024-11-23 18:35:54,520 INFO L78 Accepts]: Start accepts. Automaton has 117959 states and 169030 transitions. Word has length 118 [2024-11-23 18:35:54,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:35:54,521 INFO L471 AbstractCegarLoop]: Abstraction has 117959 states and 169030 transitions. [2024-11-23 18:35:54,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:35:54,521 INFO L276 IsEmpty]: Start isEmpty. Operand 117959 states and 169030 transitions. [2024-11-23 18:35:54,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 18:35:54,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:35:54,535 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:35:54,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 18:35:54,535 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:35:54,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:35:54,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1637156319, now seen corresponding path program 1 times [2024-11-23 18:35:54,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:35:54,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520692450] [2024-11-23 18:35:54,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:35:54,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:35:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:35:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 18:35:55,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:35:55,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520692450] [2024-11-23 18:35:55,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520692450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:35:55,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:35:55,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 18:35:55,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20440031] [2024-11-23 18:35:55,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:35:55,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 18:35:55,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:35:55,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 18:35:55,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-23 18:35:55,048 INFO L87 Difference]: Start difference. First operand 117959 states and 169030 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:36:04,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:36:04,920 INFO L93 Difference]: Finished difference Result 377177 states and 543823 transitions. [2024-11-23 18:36:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:36:04,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-23 18:36:04,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:36:05,383 INFO L225 Difference]: With dead ends: 377177 [2024-11-23 18:36:05,384 INFO L226 Difference]: Without dead ends: 343511 [2024-11-23 18:36:05,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-23 18:36:05,448 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 1747 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 2041 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:36:05,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 2041 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:36:05,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343511 states.