./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/token_ring.05.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX --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 a75784c0f203c4a6f14019aef9d9a89ba63a0efbe594dc5cdecfb5d06e7619f2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:45:38,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:45:38,306 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:45:38,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:45:38,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:45:38,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:45:38,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:45:38,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:45:38,360 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:45:38,361 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:45:38,362 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:45:38,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:45:38,363 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:45:38,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:45:38,367 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:45:38,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:45:38,368 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:45:38,368 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:45:38,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:45:38,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:45:38,369 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:45:38,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:45:38,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:45:38,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:45:38,374 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:45:38,375 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:45:38,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:45:38,375 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:45:38,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:45:38,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:45:38,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:45:38,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:45:38,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:45:38,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:45:38,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:45:38,381 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:45:38,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:45:38,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:45:38,382 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:45:38,382 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:45:38,382 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:45:38,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:45:38,384 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_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a75784c0f203c4a6f14019aef9d9a89ba63a0efbe594dc5cdecfb5d06e7619f2 [2024-11-08 17:45:38,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:45:38,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:45:38,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:45:38,787 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:45:38,787 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:45:38,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/systemc/token_ring.05.cil-1.c Unable to find full path for "g++" [2024-11-08 17:45:41,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:45:41,402 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:45:41,406 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/sv-benchmarks/c/systemc/token_ring.05.cil-1.c [2024-11-08 17:45:41,435 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/data/0a04e5f45/20f50c7770c84f3ca69d34043b1e31bf/FLAG9847fa763 [2024-11-08 17:45:41,455 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/data/0a04e5f45/20f50c7770c84f3ca69d34043b1e31bf [2024-11-08 17:45:41,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:45:41,460 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:45:41,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:45:41,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:45:41,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:45:41,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:45:41" (1/1) ... [2024-11-08 17:45:41,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54714f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:41, skipping insertion in model container [2024-11-08 17:45:41,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:45:41" (1/1) ... [2024-11-08 17:45:41,532 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:45:41,768 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_6ab6faab-5a03-414a-958d-652db1124dbc/sv-benchmarks/c/systemc/token_ring.05.cil-1.c[671,684] [2024-11-08 17:45:41,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:45:41,934 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:45:41,947 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_6ab6faab-5a03-414a-958d-652db1124dbc/sv-benchmarks/c/systemc/token_ring.05.cil-1.c[671,684] [2024-11-08 17:45:42,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:45:42,027 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:45:42,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42 WrapperNode [2024-11-08 17:45:42,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:45:42,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:45:42,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:45:42,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:45:42,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,047 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,090 INFO L138 Inliner]: procedures = 38, calls = 46, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 451 [2024-11-08 17:45:42,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:45:42,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:45:42,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:45:42,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:45:42,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,111 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,128 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]. [2024-11-08 17:45:42,128 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,128 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:45:42,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:45:42,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:45:42,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:45:42,157 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (1/1) ... [2024-11-08 17:45:42,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:45:42,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:45:42,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:45:42,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ab6faab-5a03-414a-958d-652db1124dbc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:45:42,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:45:42,237 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-08 17:45:42,237 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-08 17:45:42,237 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-08 17:45:42,237 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-08 17:45:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-08 17:45:42,238 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-08 17:45:42,238 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-08 17:45:42,238 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-08 17:45:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-08 17:45:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-08 17:45:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:45:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-08 17:45:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-08 17:45:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:45:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:45:42,354 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:45:42,356 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:45:43,179 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-08 17:45:43,179 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:45:43,207 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:45:43,208 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 17:45:43,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:43 BoogieIcfgContainer [2024-11-08 17:45:43,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:45:43,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:45:43,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:45:43,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:45:43,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:45:41" (1/3) ... [2024-11-08 17:45:43,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38aed555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:45:43, skipping insertion in model container [2024-11-08 17:45:43,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:42" (2/3) ... [2024-11-08 17:45:43,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38aed555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:45:43, skipping insertion in model container [2024-11-08 17:45:43,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:43" (3/3) ... [2024-11-08 17:45:43,220 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.05.cil-1.c [2024-11-08 17:45:43,269 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:45:43,270 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:45:43,360 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:45:43,375 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;@5b3bd59a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:45:43,375 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:45:43,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 186 states have (on average 1.6021505376344085) internal successors, (298), 188 states have internal predecessors, (298), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 17:45:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:45:43,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:43,406 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:45:43,407 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:43,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1431653768, now seen corresponding path program 1 times [2024-11-08 17:45:43,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:43,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594519729] [2024-11-08 17:45:43,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:43,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:44,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:45:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:44,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:45:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:44,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:45:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:44,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:45:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:44,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:45:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:44,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:44,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594519729] [2024-11-08 17:45:44,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594519729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:45:44,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:45:44,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:45:44,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30851048] [2024-11-08 17:45:44,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:45:44,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:45:44,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:44,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:45:44,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:45:44,337 INFO L87 Difference]: Start difference. First operand has 213 states, 186 states have (on average 1.6021505376344085) internal successors, (298), 188 states have internal predecessors, (298), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-11-08 17:45:47,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:45:47,046 INFO L93 Difference]: Finished difference Result 745 states and 1197 transitions. [2024-11-08 17:45:47,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:45:47,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 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 100 [2024-11-08 17:45:47,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:45:47,068 INFO L225 Difference]: With dead ends: 745 [2024-11-08 17:45:47,069 INFO L226 Difference]: Without dead ends: 537 [2024-11-08 17:45:47,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:45:47,088 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 767 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:45:47,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 745 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 17:45:47,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-08 17:45:47,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 408. [2024-11-08 17:45:47,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 361 states have (on average 1.5263157894736843) internal successors, (551), 363 states have internal predecessors, (551), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-08 17:45:47,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 620 transitions. [2024-11-08 17:45:47,232 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 620 transitions. Word has length 100 [2024-11-08 17:45:47,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:45:47,233 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 620 transitions. [2024-11-08 17:45:47,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-11-08 17:45:47,234 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 620 transitions. [2024-11-08 17:45:47,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:45:47,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:47,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:45:47,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:45:47,239 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:47,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:47,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1146428924, now seen corresponding path program 1 times [2024-11-08 17:45:47,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:47,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814624423] [2024-11-08 17:45:47,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:47,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:47,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:45:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:47,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:45:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:47,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:45:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:47,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:45:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:47,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:45:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:47,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:47,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:47,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814624423] [2024-11-08 17:45:47,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814624423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:45:47,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:45:47,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:45:47,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487625113] [2024-11-08 17:45:47,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:45:47,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:45:47,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:47,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:45:47,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:45:47,695 INFO L87 Difference]: Start difference. First operand 408 states and 620 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:45:50,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:45:50,630 INFO L93 Difference]: Finished difference Result 1202 states and 1856 transitions. [2024-11-08 17:45:50,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:45:50,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 100 [2024-11-08 17:45:50,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:45:50,638 INFO L225 Difference]: With dead ends: 1202 [2024-11-08 17:45:50,638 INFO L226 Difference]: Without dead ends: 807 [2024-11-08 17:45:50,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:45:50,643 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 768 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:45:50,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1345 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 17:45:50,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-11-08 17:45:50,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 595. [2024-11-08 17:45:50,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 527 states have (on average 1.5180265654648957) internal successors, (800), 530 states have internal predecessors, (800), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-08 17:45:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 899 transitions. [2024-11-08 17:45:50,730 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 899 transitions. Word has length 100 [2024-11-08 17:45:50,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:45:50,731 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 899 transitions. [2024-11-08 17:45:50,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:45:50,732 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 899 transitions. [2024-11-08 17:45:50,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:45:50,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:50,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:45:50,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:45:50,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:50,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:50,741 INFO L85 PathProgramCache]: Analyzing trace with hash -732702022, now seen corresponding path program 1 times [2024-11-08 17:45:50,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:50,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374057846] [2024-11-08 17:45:50,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:50,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:50,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:45:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:51,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:45:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:51,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:45:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:51,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:45:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:51,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:45:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:51,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:51,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374057846] [2024-11-08 17:45:51,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374057846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:45:51,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:45:51,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:45:51,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745132379] [2024-11-08 17:45:51,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:45:51,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:45:51,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:51,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:45:51,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:45:51,148 INFO L87 Difference]: Start difference. First operand 595 states and 899 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:45:54,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:45:54,202 INFO L93 Difference]: Finished difference Result 1894 states and 2915 transitions. [2024-11-08 17:45:54,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:45:54,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 100 [2024-11-08 17:45:54,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:45:54,212 INFO L225 Difference]: With dead ends: 1894 [2024-11-08 17:45:54,213 INFO L226 Difference]: Without dead ends: 1312 [2024-11-08 17:45:54,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:45:54,216 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 766 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:45:54,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1343 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 17:45:54,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2024-11-08 17:45:54,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 970. [2024-11-08 17:45:54,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 860 states have (on average 1.5104651162790699) internal successors, (1299), 865 states have internal predecessors, (1299), 75 states have call successors, (75), 30 states have call predecessors, (75), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-08 17:45:54,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1462 transitions. [2024-11-08 17:45:54,320 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1462 transitions. Word has length 100 [2024-11-08 17:45:54,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:45:54,320 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1462 transitions. [2024-11-08 17:45:54,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:45:54,321 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1462 transitions. [2024-11-08 17:45:54,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:45:54,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:54,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:45:54,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:45:54,325 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:54,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:54,326 INFO L85 PathProgramCache]: Analyzing trace with hash 592154172, now seen corresponding path program 1 times [2024-11-08 17:45:54,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:54,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194772216] [2024-11-08 17:45:54,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:54,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:54,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:45:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:54,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:45:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:54,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:45:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:54,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:45:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:54,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:45:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:54,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:54,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:54,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194772216] [2024-11-08 17:45:54,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194772216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:45:54,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:45:54,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:45:54,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847874762] [2024-11-08 17:45:54,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:45:54,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:45:54,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:54,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:45:54,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:45:54,599 INFO L87 Difference]: Start difference. First operand 970 states and 1462 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:45:57,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:45:57,569 INFO L93 Difference]: Finished difference Result 3229 states and 4950 transitions. [2024-11-08 17:45:57,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:45:57,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 100 [2024-11-08 17:45:57,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:45:57,584 INFO L225 Difference]: With dead ends: 3229 [2024-11-08 17:45:57,585 INFO L226 Difference]: Without dead ends: 2272 [2024-11-08 17:45:57,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:45:57,626 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 762 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:45:57,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1343 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 17:45:57,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2024-11-08 17:45:57,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 1721. [2024-11-08 17:45:57,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1527 states have (on average 1.504256712508186) internal successors, (2297), 1536 states have internal predecessors, (2297), 131 states have call successors, (131), 54 states have call predecessors, (131), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-08 17:45:57,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2594 transitions. [2024-11-08 17:45:57,791 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2594 transitions. Word has length 100 [2024-11-08 17:45:57,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:45:57,791 INFO L471 AbstractCegarLoop]: Abstraction has 1721 states and 2594 transitions. [2024-11-08 17:45:57,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:45:57,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2594 transitions. [2024-11-08 17:45:57,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:45:57,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:57,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:45:57,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:45:57,796 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:57,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:57,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2136055174, now seen corresponding path program 1 times [2024-11-08 17:45:57,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:57,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23189456] [2024-11-08 17:45:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:57,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:57,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:45:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:57,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:45:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:58,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:45:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:58,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:45:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:58,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:45:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:58,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:58,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23189456] [2024-11-08 17:45:58,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23189456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:45:58,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:45:58,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:45:58,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583069522] [2024-11-08 17:45:58,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:45:58,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:45:58,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:58,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:45:58,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:45:58,076 INFO L87 Difference]: Start difference. First operand 1721 states and 2594 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:00,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:46:00,907 INFO L93 Difference]: Finished difference Result 5898 states and 9036 transitions. [2024-11-08 17:46:00,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:46:00,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 100 [2024-11-08 17:46:00,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:46:00,932 INFO L225 Difference]: With dead ends: 5898 [2024-11-08 17:46:00,932 INFO L226 Difference]: Without dead ends: 4190 [2024-11-08 17:46:00,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:46:00,940 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 764 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:46:00,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 1343 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 17:46:00,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2024-11-08 17:46:01,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 3228. [2024-11-08 17:46:01,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3228 states, 2866 states have (on average 1.5) internal successors, (4299), 2883 states have internal predecessors, (4299), 243 states have call successors, (243), 102 states have call predecessors, (243), 118 states have return successors, (340), 258 states have call predecessors, (340), 243 states have call successors, (340) [2024-11-08 17:46:01,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3228 states to 3228 states and 4882 transitions. [2024-11-08 17:46:01,270 INFO L78 Accepts]: Start accepts. Automaton has 3228 states and 4882 transitions. Word has length 100 [2024-11-08 17:46:01,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:46:01,271 INFO L471 AbstractCegarLoop]: Abstraction has 3228 states and 4882 transitions. [2024-11-08 17:46:01,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:01,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3228 states and 4882 transitions. [2024-11-08 17:46:01,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:46:01,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:46:01,276 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:46:01,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:46:01,276 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:46:01,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:46:01,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1101074044, now seen corresponding path program 1 times [2024-11-08 17:46:01,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:46:01,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839806876] [2024-11-08 17:46:01,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:46:01,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:46:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:01,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:46:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:01,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:46:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:01,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:46:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:01,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:46:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:01,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:46:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:01,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:46:01,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:46:01,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839806876] [2024-11-08 17:46:01,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839806876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:46:01,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:46:01,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:46:01,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213850804] [2024-11-08 17:46:01,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:46:01,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:46:01,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:46:01,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:46:01,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:46:01,524 INFO L87 Difference]: Start difference. First operand 3228 states and 4882 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:04,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:46:04,478 INFO L93 Difference]: Finished difference Result 12484 states and 19128 transitions. [2024-11-08 17:46:04,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:46:04,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 100 [2024-11-08 17:46:04,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:46:04,541 INFO L225 Difference]: With dead ends: 12484 [2024-11-08 17:46:04,541 INFO L226 Difference]: Without dead ends: 9269 [2024-11-08 17:46:04,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:46:04,556 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 1032 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:46:04,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 881 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 17:46:04,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9269 states. [2024-11-08 17:46:05,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9269 to 6224. [2024-11-08 17:46:05,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6224 states, 5542 states have (on average 1.5018044027426922) internal successors, (8323), 5575 states have internal predecessors, (8323), 451 states have call successors, (451), 198 states have call predecessors, (451), 230 states have return successors, (726), 482 states have call predecessors, (726), 451 states have call successors, (726) [2024-11-08 17:46:05,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6224 states to 6224 states and 9500 transitions. [2024-11-08 17:46:05,390 INFO L78 Accepts]: Start accepts. Automaton has 6224 states and 9500 transitions. Word has length 100 [2024-11-08 17:46:05,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:46:05,391 INFO L471 AbstractCegarLoop]: Abstraction has 6224 states and 9500 transitions. [2024-11-08 17:46:05,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:05,392 INFO L276 IsEmpty]: Start isEmpty. Operand 6224 states and 9500 transitions. [2024-11-08 17:46:05,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:46:05,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:46:05,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:46:05,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:46:05,406 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:46:05,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:46:05,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1341313790, now seen corresponding path program 1 times [2024-11-08 17:46:05,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:46:05,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398618135] [2024-11-08 17:46:05,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:46:05,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:46:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:05,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:46:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:05,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:46:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:05,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:46:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:05,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:46:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:05,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:46:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:05,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:46:05,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:46:05,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398618135] [2024-11-08 17:46:05,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398618135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:46:05,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:46:05,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:46:05,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641379921] [2024-11-08 17:46:05,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:46:05,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:46:05,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:46:05,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:46:05,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:46:05,736 INFO L87 Difference]: Start difference. First operand 6224 states and 9500 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:09,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:46:09,701 INFO L93 Difference]: Finished difference Result 23898 states and 36876 transitions. [2024-11-08 17:46:09,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:46:09,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 100 [2024-11-08 17:46:09,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:46:09,839 INFO L225 Difference]: With dead ends: 23898 [2024-11-08 17:46:09,840 INFO L226 Difference]: Without dead ends: 17687 [2024-11-08 17:46:09,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:46:09,883 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 801 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:46:09,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1329 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 17:46:09,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17687 states. [2024-11-08 17:46:11,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17687 to 12037. [2024-11-08 17:46:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12037 states, 10731 states have (on average 1.5026558568632933) internal successors, (16125), 10796 states have internal predecessors, (16125), 851 states have call successors, (851), 390 states have call predecessors, (851), 454 states have return successors, (1644), 914 states have call predecessors, (1644), 851 states have call successors, (1644) [2024-11-08 17:46:11,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12037 states to 12037 states and 18620 transitions. [2024-11-08 17:46:11,388 INFO L78 Accepts]: Start accepts. Automaton has 12037 states and 18620 transitions. Word has length 100 [2024-11-08 17:46:11,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:46:11,390 INFO L471 AbstractCegarLoop]: Abstraction has 12037 states and 18620 transitions. [2024-11-08 17:46:11,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:11,391 INFO L276 IsEmpty]: Start isEmpty. Operand 12037 states and 18620 transitions. [2024-11-08 17:46:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:46:11,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:46:11,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:46:11,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:46:11,410 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:46:11,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:46:11,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2114619844, now seen corresponding path program 1 times [2024-11-08 17:46:11,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:46:11,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675735577] [2024-11-08 17:46:11,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:46:11,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:46:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:11,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:46:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:11,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:46:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:11,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:46:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:11,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:46:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:11,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:46:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:11,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:46:11,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:46:11,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675735577] [2024-11-08 17:46:11,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675735577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:46:11,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:46:11,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:46:11,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736268083] [2024-11-08 17:46:11,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:46:11,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:46:11,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:46:11,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:46:11,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:46:11,677 INFO L87 Difference]: Start difference. First operand 12037 states and 18620 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:16,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:46:16,512 INFO L93 Difference]: Finished difference Result 45653 states and 71274 transitions. [2024-11-08 17:46:16,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:46:16,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 100 [2024-11-08 17:46:16,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:46:16,692 INFO L225 Difference]: With dead ends: 45653 [2024-11-08 17:46:16,693 INFO L226 Difference]: Without dead ends: 33629 [2024-11-08 17:46:16,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:46:16,751 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 893 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:46:16,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 1333 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 17:46:16,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33629 states. [2024-11-08 17:46:19,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33629 to 23790. [2024-11-08 17:46:19,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23790 states, 21268 states have (on average 1.5053131465111904) internal successors, (32015), 21397 states have internal predecessors, (32015), 1619 states have call successors, (1619), 774 states have call predecessors, (1619), 902 states have return successors, (3934), 1746 states have call predecessors, (3934), 1619 states have call successors, (3934) [2024-11-08 17:46:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23790 states to 23790 states and 37568 transitions. [2024-11-08 17:46:19,237 INFO L78 Accepts]: Start accepts. Automaton has 23790 states and 37568 transitions. Word has length 100 [2024-11-08 17:46:19,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:46:19,238 INFO L471 AbstractCegarLoop]: Abstraction has 23790 states and 37568 transitions. [2024-11-08 17:46:19,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:19,240 INFO L276 IsEmpty]: Start isEmpty. Operand 23790 states and 37568 transitions. [2024-11-08 17:46:19,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:46:19,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:46:19,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:46:19,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:46:19,272 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:46:19,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:46:19,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2087554242, now seen corresponding path program 1 times [2024-11-08 17:46:19,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:46:19,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941744191] [2024-11-08 17:46:19,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:46:19,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:46:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:19,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:46:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:19,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:46:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:19,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:46:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:19,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:46:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:19,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:46:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:46:19,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:46:19,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941744191] [2024-11-08 17:46:19,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941744191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:46:19,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:46:19,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:46:19,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462994498] [2024-11-08 17:46:19,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:46:19,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:46:19,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:46:19,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:46:19,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:46:19,563 INFO L87 Difference]: Start difference. First operand 23790 states and 37568 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:27,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:46:27,054 INFO L93 Difference]: Finished difference Result 88396 states and 140832 transitions. [2024-11-08 17:46:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:46:27,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 100 [2024-11-08 17:46:27,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:46:27,400 INFO L225 Difference]: With dead ends: 88396 [2024-11-08 17:46:27,400 INFO L226 Difference]: Without dead ends: 64619 [2024-11-08 17:46:27,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:46:27,508 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 853 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:46:27,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1333 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 17:46:27,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64619 states. [2024-11-08 17:46:32,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64619 to 47231. [2024-11-08 17:46:32,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47231 states, 42341 states have (on average 1.5081599395385088) internal successors, (63857), 42598 states have internal predecessors, (63857), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-08 17:46:32,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47231 states to 47231 states and 76856 transitions. [2024-11-08 17:46:32,496 INFO L78 Accepts]: Start accepts. Automaton has 47231 states and 76856 transitions. Word has length 100 [2024-11-08 17:46:32,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:46:32,497 INFO L471 AbstractCegarLoop]: Abstraction has 47231 states and 76856 transitions. [2024-11-08 17:46:32,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:32,497 INFO L276 IsEmpty]: Start isEmpty. Operand 47231 states and 76856 transitions. [2024-11-08 17:46:32,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:46:32,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:46:32,554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:46:32,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:46:32,554 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:46:32,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:46:32,555 INFO L85 PathProgramCache]: Analyzing trace with hash 130076156, now seen corresponding path program 1 times [2024-11-08 17:46:32,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:46:32,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424227502] [2024-11-08 17:46:32,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:46:32,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:46:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:32,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:46:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:32,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:46:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:32,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:46:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:32,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:46:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:32,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:46:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:46:32,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:46:32,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424227502] [2024-11-08 17:46:32,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424227502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:46:32,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:46:32,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:46:32,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698388400] [2024-11-08 17:46:32,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:46:32,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:46:32,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:46:32,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:46:32,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:46:32,855 INFO L87 Difference]: Start difference. First operand 47231 states and 76856 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:44,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:46:44,650 INFO L93 Difference]: Finished difference Result 171515 states and 282006 transitions. [2024-11-08 17:46:44,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:46:44,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 100 [2024-11-08 17:46:44,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:46:45,351 INFO L225 Difference]: With dead ends: 171515 [2024-11-08 17:46:45,351 INFO L226 Difference]: Without dead ends: 124297 [2024-11-08 17:46:45,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:46:45,583 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 769 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:46:45,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1333 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 17:46:45,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124297 states. [2024-11-08 17:46:53,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124297 to 93984. [2024-11-08 17:46:53,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93984 states, 84486 states have (on average 1.5111024311720285) internal successors, (127667), 84999 states have internal predecessors, (127667), 5907 states have call successors, (5907), 3078 states have call predecessors, (5907), 3590 states have return successors, (26102), 6418 states have call predecessors, (26102), 5907 states have call successors, (26102) [2024-11-08 17:46:54,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93984 states to 93984 states and 159676 transitions. [2024-11-08 17:46:54,200 INFO L78 Accepts]: Start accepts. Automaton has 93984 states and 159676 transitions. Word has length 100 [2024-11-08 17:46:54,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:46:54,201 INFO L471 AbstractCegarLoop]: Abstraction has 93984 states and 159676 transitions. [2024-11-08 17:46:54,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-11-08 17:46:54,202 INFO L276 IsEmpty]: Start isEmpty. Operand 93984 states and 159676 transitions. [2024-11-08 17:46:54,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 17:46:54,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:46:54,905 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:46:54,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:46:54,906 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:46:54,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:46:54,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1864180606, now seen corresponding path program 1 times [2024-11-08 17:46:54,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:46:54,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019125863] [2024-11-08 17:46:54,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:46:54,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:46:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:55,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:46:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:55,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:46:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:55,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:46:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:55,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:46:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:55,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 17:46:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:46:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:46:55,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:46:55,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019125863] [2024-11-08 17:46:55,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019125863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:46:55,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:46:55,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:46:55,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532581124] [2024-11-08 17:46:55,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:46:55,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:46:55,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:46:55,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:46:55,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:46:55,171 INFO L87 Difference]: Start difference. First operand 93984 states and 159676 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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)