./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU --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 1de07d37d630bd073064bf436fb9512b72ab982b0eaf3fcb1582f689c57482fa --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:14:53,410 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:14:53,500 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:14:53,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:14:53,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:14:53,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:14:53,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:14:53,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:14:53,548 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:14:53,549 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:14:53,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:14:53,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:14:53,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:14:53,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:14:53,554 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:14:53,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:14:53,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:14:53,556 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:14:53,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:14:53,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:14:53,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:14:53,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:14:53,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:14:53,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:14:53,563 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:14:53,563 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:14:53,564 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:14:53,564 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:14:53,565 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:14:53,565 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:14:53,565 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:14:53,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:14:53,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:14:53,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:14:53,567 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:14:53,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:14:53,567 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:14:53,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:14:53,569 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:14:53,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:14:53,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:14:53,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:14:53,571 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1de07d37d630bd073064bf436fb9512b72ab982b0eaf3fcb1582f689c57482fa [2024-10-31 22:14:53,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:14:53,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:14:53,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:14:53,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:14:53,971 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:14:53,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/systemc/transmitter.04.cil.c Unable to find full path for "g++" [2024-10-31 22:14:56,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:14:56,312 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:14:56,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/sv-benchmarks/c/systemc/transmitter.04.cil.c [2024-10-31 22:14:56,328 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/data/0c2cbb5f4/9aeccfdbc37e4f98a86846304ec87418/FLAG3cc956e11 [2024-10-31 22:14:56,679 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/data/0c2cbb5f4/9aeccfdbc37e4f98a86846304ec87418 [2024-10-31 22:14:56,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:14:56,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:14:56,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:56,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:14:56,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:14:56,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:56" (1/1) ... [2024-10-31 22:14:56,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9c0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:56, skipping insertion in model container [2024-10-31 22:14:56,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:56" (1/1) ... [2024-10-31 22:14:56,776 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:14:56,992 WARN L251 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_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/sv-benchmarks/c/systemc/transmitter.04.cil.c[706,719] [2024-10-31 22:14:57,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:57,110 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:14:57,123 WARN L251 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_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/sv-benchmarks/c/systemc/transmitter.04.cil.c[706,719] [2024-10-31 22:14:57,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:57,224 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:14:57,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57 WrapperNode [2024-10-31 22:14:57,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:57,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:57,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:14:57,227 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:14:57,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,290 INFO L138 Inliner]: procedures = 36, calls = 42, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 387 [2024-10-31 22:14:57,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:57,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:14:57,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:14:57,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:14:57,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,343 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]. [2024-10-31 22:14:57,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,356 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:14:57,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:14:57,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:14:57,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:14:57,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (1/1) ... [2024-10-31 22:14:57,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:14:57,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:57,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:57,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7fbdc97-6046-4ea9-85d7-b2160751cb0b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:14:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:14:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-31 22:14:57,465 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-31 22:14:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-31 22:14:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-31 22:14:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-31 22:14:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-31 22:14:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-31 22:14:57,467 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-31 22:14:57,467 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-31 22:14:57,467 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-31 22:14:57,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:14:57,469 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-31 22:14:57,469 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-31 22:14:57,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:14:57,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:14:57,596 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:14:57,602 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:14:58,318 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-10-31 22:14:58,319 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:14:58,336 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:14:58,336 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-10-31 22:14:58,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:58 BoogieIcfgContainer [2024-10-31 22:14:58,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:14:58,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:14:58,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:14:58,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:14:58,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:14:56" (1/3) ... [2024-10-31 22:14:58,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7135bd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:14:58, skipping insertion in model container [2024-10-31 22:14:58,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:57" (2/3) ... [2024-10-31 22:14:58,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7135bd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:14:58, skipping insertion in model container [2024-10-31 22:14:58,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:58" (3/3) ... [2024-10-31 22:14:58,346 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.04.cil.c [2024-10-31 22:14:58,363 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:14:58,363 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:14:58,454 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:14:58,459 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;@6306c6ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:14:58,460 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:14:58,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 158 states have (on average 1.5886075949367089) internal successors, (251), 160 states have internal predecessors, (251), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-31 22:14:58,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-31 22:14:58,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:58,485 INFO L215 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] [2024-10-31 22:14:58,489 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:14:58,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:58,498 INFO L85 PathProgramCache]: Analyzing trace with hash -826588388, now seen corresponding path program 1 times [2024-10-31 22:14:58,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:58,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129789023] [2024-10-31 22:14:58,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:58,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:59,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:14:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:59,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:14:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:59,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:14:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:59,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:14:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:59,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-31 22:14:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:59,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:59,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:59,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129789023] [2024-10-31 22:14:59,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129789023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:59,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:59,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:14:59,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081565876] [2024-10-31 22:14:59,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:59,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:14:59,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:59,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:14:59,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:14:59,451 INFO L87 Difference]: Start difference. First operand has 183 states, 158 states have (on average 1.5886075949367089) internal successors, (251), 160 states have internal predecessors, (251), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:01,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:01,444 INFO L93 Difference]: Finished difference Result 628 states and 1001 transitions. [2024-10-31 22:15:01,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:15:01,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-31 22:15:01,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:01,460 INFO L225 Difference]: With dead ends: 628 [2024-10-31 22:15:01,460 INFO L226 Difference]: Without dead ends: 449 [2024-10-31 22:15:01,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:15:01,468 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 625 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:01,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 644 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-31 22:15:01,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-10-31 22:15:01,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 345. [2024-10-31 22:15:01,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 302 states have (on average 1.4933774834437086) internal successors, (451), 304 states have internal predecessors, (451), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-10-31 22:15:01,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 512 transitions. [2024-10-31 22:15:01,571 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 512 transitions. Word has length 91 [2024-10-31 22:15:01,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:01,572 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 512 transitions. [2024-10-31 22:15:01,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:01,572 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 512 transitions. [2024-10-31 22:15:01,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-31 22:15:01,576 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:01,576 INFO L215 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] [2024-10-31 22:15:01,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:15:01,577 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:01,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:01,577 INFO L85 PathProgramCache]: Analyzing trace with hash 180155515, now seen corresponding path program 1 times [2024-10-31 22:15:01,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:01,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623823455] [2024-10-31 22:15:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:01,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:01,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:15:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:01,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:01,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:15:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:01,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:15:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:01,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-31 22:15:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:01,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:01,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:01,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623823455] [2024-10-31 22:15:01,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623823455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:01,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:01,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:15:01,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073603994] [2024-10-31 22:15:01,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:01,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:15:01,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:01,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:15:01,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:01,911 INFO L87 Difference]: Start difference. First operand 345 states and 512 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:04,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:04,477 INFO L93 Difference]: Finished difference Result 1070 states and 1610 transitions. [2024-10-31 22:15:04,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-31 22:15:04,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-31 22:15:04,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:04,491 INFO L225 Difference]: With dead ends: 1070 [2024-10-31 22:15:04,491 INFO L226 Difference]: Without dead ends: 737 [2024-10-31 22:15:04,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:15:04,495 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 664 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:04,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1158 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-31 22:15:04,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-10-31 22:15:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 502. [2024-10-31 22:15:04,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 440 states have (on average 1.4840909090909091) internal successors, (653), 443 states have internal predecessors, (653), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2024-10-31 22:15:04,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 740 transitions. [2024-10-31 22:15:04,590 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 740 transitions. Word has length 91 [2024-10-31 22:15:04,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:04,592 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 740 transitions. [2024-10-31 22:15:04,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 740 transitions. [2024-10-31 22:15:04,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-31 22:15:04,599 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:04,599 INFO L215 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] [2024-10-31 22:15:04,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:15:04,600 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:04,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:04,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1897181383, now seen corresponding path program 1 times [2024-10-31 22:15:04,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:04,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106300461] [2024-10-31 22:15:04,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:04,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:04,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:15:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:04,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:04,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:15:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:04,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:15:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:04,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-31 22:15:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:04,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:04,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:04,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106300461] [2024-10-31 22:15:04,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106300461] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:04,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:04,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:15:04,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145978551] [2024-10-31 22:15:04,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:04,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:15:04,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:04,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:15:04,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:04,859 INFO L87 Difference]: Start difference. First operand 502 states and 740 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:07,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:07,257 INFO L93 Difference]: Finished difference Result 1643 states and 2462 transitions. [2024-10-31 22:15:07,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-31 22:15:07,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-31 22:15:07,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:07,269 INFO L225 Difference]: With dead ends: 1643 [2024-10-31 22:15:07,269 INFO L226 Difference]: Without dead ends: 1153 [2024-10-31 22:15:07,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:15:07,273 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 662 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:07,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 1156 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-31 22:15:07,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2024-10-31 22:15:07,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 817. [2024-10-31 22:15:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 717 states have (on average 1.4755927475592747) internal successors, (1058), 722 states have internal predecessors, (1058), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2024-10-31 22:15:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1201 transitions. [2024-10-31 22:15:07,373 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1201 transitions. Word has length 91 [2024-10-31 22:15:07,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:07,374 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1201 transitions. [2024-10-31 22:15:07,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:07,374 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1201 transitions. [2024-10-31 22:15:07,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-31 22:15:07,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:07,377 INFO L215 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] [2024-10-31 22:15:07,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:15:07,378 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:07,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:07,378 INFO L85 PathProgramCache]: Analyzing trace with hash -163076933, now seen corresponding path program 1 times [2024-10-31 22:15:07,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:07,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227081029] [2024-10-31 22:15:07,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:07,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:07,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:15:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:07,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:07,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:15:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:07,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:15:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:07,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-31 22:15:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:07,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:07,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:07,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227081029] [2024-10-31 22:15:07,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227081029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:07,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:07,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:15:07,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382438487] [2024-10-31 22:15:07,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:07,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:15:07,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:07,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:15:07,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:07,597 INFO L87 Difference]: Start difference. First operand 817 states and 1201 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:09,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:09,905 INFO L93 Difference]: Finished difference Result 2752 states and 4107 transitions. [2024-10-31 22:15:09,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-31 22:15:09,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-31 22:15:09,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:09,916 INFO L225 Difference]: With dead ends: 2752 [2024-10-31 22:15:09,916 INFO L226 Difference]: Without dead ends: 1947 [2024-10-31 22:15:09,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:15:09,920 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 709 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:09,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 769 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-31 22:15:09,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2024-10-31 22:15:10,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1448. [2024-10-31 22:15:10,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1272 states have (on average 1.4685534591194969) internal successors, (1868), 1281 states have internal predecessors, (1868), 113 states have call successors, (113), 54 states have call predecessors, (113), 62 states have return successors, (148), 120 states have call predecessors, (148), 113 states have call successors, (148) [2024-10-31 22:15:10,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2129 transitions. [2024-10-31 22:15:10,058 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2129 transitions. Word has length 91 [2024-10-31 22:15:10,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:10,059 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 2129 transitions. [2024-10-31 22:15:10,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:10,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2129 transitions. [2024-10-31 22:15:10,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-31 22:15:10,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:10,064 INFO L215 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] [2024-10-31 22:15:10,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:15:10,065 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:10,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:10,066 INFO L85 PathProgramCache]: Analyzing trace with hash 724145913, now seen corresponding path program 1 times [2024-10-31 22:15:10,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:10,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472523471] [2024-10-31 22:15:10,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:10,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:10,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:15:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:10,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:10,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:15:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:10,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:15:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:10,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-31 22:15:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:10,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:10,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:10,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472523471] [2024-10-31 22:15:10,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472523471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:10,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:10,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:15:10,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865473116] [2024-10-31 22:15:10,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:10,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:15:10,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:10,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:15:10,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:10,287 INFO L87 Difference]: Start difference. First operand 1448 states and 2129 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:12,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:12,545 INFO L93 Difference]: Finished difference Result 4969 states and 7413 transitions. [2024-10-31 22:15:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-31 22:15:12,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-31 22:15:12,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:12,565 INFO L225 Difference]: With dead ends: 4969 [2024-10-31 22:15:12,566 INFO L226 Difference]: Without dead ends: 3533 [2024-10-31 22:15:12,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:15:12,574 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 654 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:12,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1156 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-31 22:15:12,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2024-10-31 22:15:12,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 2715. [2024-10-31 22:15:12,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2715 states, 2387 states have (on average 1.4637620444072057) internal successors, (3494), 2404 states have internal predecessors, (3494), 209 states have call successors, (209), 102 states have call predecessors, (209), 118 states have return successors, (306), 224 states have call predecessors, (306), 209 states have call successors, (306) [2024-10-31 22:15:12,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 4009 transitions. [2024-10-31 22:15:12,880 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 4009 transitions. Word has length 91 [2024-10-31 22:15:12,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:12,880 INFO L471 AbstractCegarLoop]: Abstraction has 2715 states and 4009 transitions. [2024-10-31 22:15:12,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:12,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 4009 transitions. [2024-10-31 22:15:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-31 22:15:12,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:12,889 INFO L215 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] [2024-10-31 22:15:12,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:15:12,889 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:12,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:12,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1186896645, now seen corresponding path program 1 times [2024-10-31 22:15:12,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:12,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936866779] [2024-10-31 22:15:12,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:12,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:12,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:15:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:13,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:13,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:15:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:13,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:15:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:13,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-31 22:15:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:13,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:13,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:13,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936866779] [2024-10-31 22:15:13,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936866779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:13,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:13,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:15:13,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436743132] [2024-10-31 22:15:13,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:13,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:15:13,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:13,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:15:13,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:13,097 INFO L87 Difference]: Start difference. First operand 2715 states and 4009 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:15,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:15,600 INFO L93 Difference]: Finished difference Result 10266 states and 15333 transitions. [2024-10-31 22:15:15,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:15:15,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-31 22:15:15,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:15,641 INFO L225 Difference]: With dead ends: 10266 [2024-10-31 22:15:15,641 INFO L226 Difference]: Without dead ends: 7563 [2024-10-31 22:15:15,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:15:15,652 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 683 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:15,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 1138 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-31 22:15:15,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2024-10-31 22:15:16,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 5198. [2024-10-31 22:15:16,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 4582 states have (on average 1.4657354866870362) internal successors, (6716), 4615 states have internal predecessors, (6716), 385 states have call successors, (385), 198 states have call predecessors, (385), 230 states have return successors, (660), 416 states have call predecessors, (660), 385 states have call successors, (660) [2024-10-31 22:15:16,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 7761 transitions. [2024-10-31 22:15:16,174 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 7761 transitions. Word has length 91 [2024-10-31 22:15:16,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:16,174 INFO L471 AbstractCegarLoop]: Abstraction has 5198 states and 7761 transitions. [2024-10-31 22:15:16,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:16,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 7761 transitions. [2024-10-31 22:15:16,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-31 22:15:16,183 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:16,183 INFO L215 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] [2024-10-31 22:15:16,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:15:16,183 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:16,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:16,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1109995847, now seen corresponding path program 1 times [2024-10-31 22:15:16,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:16,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697112720] [2024-10-31 22:15:16,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:16,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:16,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:15:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:16,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:16,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:15:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:16,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:15:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:16,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-31 22:15:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:16,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:16,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:16,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697112720] [2024-10-31 22:15:16,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697112720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:16,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:16,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:15:16,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684480714] [2024-10-31 22:15:16,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:16,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:15:16,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:16,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:15:16,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:16,369 INFO L87 Difference]: Start difference. First operand 5198 states and 7761 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:19,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:19,537 INFO L93 Difference]: Finished difference Result 19355 states and 29167 transitions. [2024-10-31 22:15:19,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:15:19,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-10-31 22:15:19,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:19,619 INFO L225 Difference]: With dead ends: 19355 [2024-10-31 22:15:19,619 INFO L226 Difference]: Without dead ends: 14169 [2024-10-31 22:15:19,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:15:19,643 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 748 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:19,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1138 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1544 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-31 22:15:19,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14169 states. [2024-10-31 22:15:20,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14169 to 10161. [2024-10-31 22:15:20,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10161 states, 8985 states have (on average 1.467557039510295) internal successors, (13186), 9050 states have internal predecessors, (13186), 721 states have call successors, (721), 390 states have call predecessors, (721), 454 states have return successors, (1514), 784 states have call predecessors, (1514), 721 states have call successors, (1514) [2024-10-31 22:15:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10161 states to 10161 states and 15421 transitions. [2024-10-31 22:15:20,597 INFO L78 Accepts]: Start accepts. Automaton has 10161 states and 15421 transitions. Word has length 91 [2024-10-31 22:15:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:20,598 INFO L471 AbstractCegarLoop]: Abstraction has 10161 states and 15421 transitions. [2024-10-31 22:15:20,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:20,598 INFO L276 IsEmpty]: Start isEmpty. Operand 10161 states and 15421 transitions. [2024-10-31 22:15:20,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-31 22:15:20,622 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:20,622 INFO L215 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] [2024-10-31 22:15:20,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:15:20,622 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:15:20,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:20,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2077346501, now seen corresponding path program 1 times [2024-10-31 22:15:20,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:20,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949921390] [2024-10-31 22:15:20,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:20,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:20,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:15:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:20,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:20,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:15:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:20,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:15:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:20,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-31 22:15:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:20,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:20,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:20,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949921390] [2024-10-31 22:15:20,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949921390] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:20,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:20,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:15:20,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118103001] [2024-10-31 22:15:20,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:20,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:15:20,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:20,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:15:20,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:20,844 INFO L87 Difference]: Start difference. First operand 10161 states and 15421 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)