./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/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_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/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_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/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 4008c7bad6e9f0faf3cf745d811b7950453991ed3720a7122a910bf51077877c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:28:15,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:28:15,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:28:15,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:28:15,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:28:15,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:28:15,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:28:15,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:28:15,973 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:28:15,974 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:28:15,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:28:15,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:28:15,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:28:15,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:28:15,980 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:28:15,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:28:15,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:28:15,981 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:28:15,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:28:15,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:28:15,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:28:15,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:28:15,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:28:15,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:28:15,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:28:15,985 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:28:15,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:28:15,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:28:15,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:28:15,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:28:15,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:28:15,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:28:15,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:28:15,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:28:15,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:28:15,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:28:15,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:28:15,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:28:15,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:28:15,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:28:15,997 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:28:15,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:28:15,998 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_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4008c7bad6e9f0faf3cf745d811b7950453991ed3720a7122a910bf51077877c [2024-11-08 18:28:16,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:28:16,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:28:16,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:28:16,457 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:28:16,457 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:28:16,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c Unable to find full path for "g++" [2024-11-08 18:28:18,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:28:19,163 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:28:19,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2024-11-08 18:28:19,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/data/a40ee51f8/8a3df6a154904c888f085d6bd68028d1/FLAG579a55522 [2024-11-08 18:28:19,209 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/data/a40ee51f8/8a3df6a154904c888f085d6bd68028d1 [2024-11-08 18:28:19,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:28:19,217 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:28:19,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:28:19,219 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:28:19,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:28:19,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:28:19" (1/1) ... [2024-11-08 18:28:19,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68edba32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:19, skipping insertion in model container [2024-11-08 18:28:19,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:28:19" (1/1) ... [2024-11-08 18:28:19,305 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:28:19,758 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_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10525,10538] [2024-11-08 18:28:19,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:28:19,907 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:28:20,034 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_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10525,10538] [2024-11-08 18:28:20,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:28:20,126 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:28:20,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20 WrapperNode [2024-11-08 18:28:20,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:28:20,128 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:28:20,128 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:28:20,128 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:28:20,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,239 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 917 [2024-11-08 18:28:20,239 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:28:20,240 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:28:20,240 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:28:20,241 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:28:20,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,271 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,306 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 18:28:20,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:28:20,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:28:20,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:28:20,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:28:20,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (1/1) ... [2024-11-08 18:28:20,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:28:20,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:28:20,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:28:20,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:28:20,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:28:20,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:28:20,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:28:20,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:28:20,677 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:28:20,680 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:28:21,962 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-08 18:28:21,962 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:28:21,983 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:28:21,984 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:28:21,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:28:21 BoogieIcfgContainer [2024-11-08 18:28:21,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:28:21,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:28:21,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:28:21,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:28:21,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:28:19" (1/3) ... [2024-11-08 18:28:21,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486e1ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:28:21, skipping insertion in model container [2024-11-08 18:28:21,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:20" (2/3) ... [2024-11-08 18:28:21,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486e1ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:28:21, skipping insertion in model container [2024-11-08 18:28:21,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:28:21" (3/3) ... [2024-11-08 18:28:21,999 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2024-11-08 18:28:22,025 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:28:22,026 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:28:22,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:28:22,131 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;@3ce32e29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:28:22,132 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:28:22,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 200 states have (on average 1.765) internal successors, (353), 201 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:22,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:28:22,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:22,157 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:22,158 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:22,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:22,170 INFO L85 PathProgramCache]: Analyzing trace with hash -2055920229, now seen corresponding path program 1 times [2024-11-08 18:28:22,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:22,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309470382] [2024-11-08 18:28:22,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:22,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:23,540 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 18:28:23,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:23,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309470382] [2024-11-08 18:28:23,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309470382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:23,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:23,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:23,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621548776] [2024-11-08 18:28:23,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:23,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:28:23,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:23,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:28:23,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:28:23,589 INFO L87 Difference]: Start difference. First operand has 202 states, 200 states have (on average 1.765) internal successors, (353), 201 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:24,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:24,923 INFO L93 Difference]: Finished difference Result 1459 states and 2342 transitions. [2024-11-08 18:28:24,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:28:24,926 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-11-08 18:28:24,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:24,952 INFO L225 Difference]: With dead ends: 1459 [2024-11-08 18:28:24,952 INFO L226 Difference]: Without dead ends: 1333 [2024-11-08 18:28:24,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:28:24,962 INFO L432 NwaCegarLoop]: 868 mSDtfsCounter, 2676 mSDsluCounter, 6172 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 7040 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:24,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 7040 Invalid, 494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:28:24,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2024-11-08 18:28:25,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 304. [2024-11-08 18:28:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 1.4422442244224423) internal successors, (437), 303 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:25,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 437 transitions. [2024-11-08 18:28:25,082 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 437 transitions. Word has length 108 [2024-11-08 18:28:25,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:25,084 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 437 transitions. [2024-11-08 18:28:25,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:25,086 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 437 transitions. [2024-11-08 18:28:25,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:28:25,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:25,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:25,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:28:25,092 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:25,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:25,094 INFO L85 PathProgramCache]: Analyzing trace with hash -924120728, now seen corresponding path program 1 times [2024-11-08 18:28:25,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:25,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890158406] [2024-11-08 18:28:25,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:25,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:25,735 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 18:28:25,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:25,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890158406] [2024-11-08 18:28:25,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890158406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:25,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:25,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:25,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907043167] [2024-11-08 18:28:25,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:25,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:28:25,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:25,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:28:25,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:28:25,745 INFO L87 Difference]: Start difference. First operand 304 states and 437 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:26,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:26,401 INFO L93 Difference]: Finished difference Result 1560 states and 2419 transitions. [2024-11-08 18:28:26,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:28:26,402 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-08 18:28:26,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:26,410 INFO L225 Difference]: With dead ends: 1560 [2024-11-08 18:28:26,411 INFO L226 Difference]: Without dead ends: 1400 [2024-11-08 18:28:26,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:28:26,415 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 1945 mSDsluCounter, 3187 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1945 SdHoareTripleChecker+Valid, 4018 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:26,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1945 Valid, 4018 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:28:26,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-11-08 18:28:26,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 483. [2024-11-08 18:28:26,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.495850622406639) internal successors, (721), 482 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:26,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 721 transitions. [2024-11-08 18:28:26,483 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 721 transitions. Word has length 110 [2024-11-08 18:28:26,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:26,484 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 721 transitions. [2024-11-08 18:28:26,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:26,484 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 721 transitions. [2024-11-08 18:28:26,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:28:26,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:26,488 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:26,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:28:26,489 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:26,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:26,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1292919580, now seen corresponding path program 1 times [2024-11-08 18:28:26,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:26,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807468836] [2024-11-08 18:28:26,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:26,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:26,962 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 18:28:26,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:26,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807468836] [2024-11-08 18:28:26,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807468836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:26,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:26,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:26,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753255433] [2024-11-08 18:28:26,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:26,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:28:26,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:26,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:28:26,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:28:26,969 INFO L87 Difference]: Start difference. First operand 483 states and 721 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:27,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:27,565 INFO L93 Difference]: Finished difference Result 1739 states and 2703 transitions. [2024-11-08 18:28:27,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:28:27,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-08 18:28:27,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:27,578 INFO L225 Difference]: With dead ends: 1739 [2024-11-08 18:28:27,578 INFO L226 Difference]: Without dead ends: 1579 [2024-11-08 18:28:27,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:28:27,583 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 1938 mSDsluCounter, 2650 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1938 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:27,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1938 Valid, 3372 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:28:27,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2024-11-08 18:28:27,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 741. [2024-11-08 18:28:27,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 740 states have (on average 1.527027027027027) internal successors, (1130), 740 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:27,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1130 transitions. [2024-11-08 18:28:27,627 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1130 transitions. Word has length 110 [2024-11-08 18:28:27,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:27,629 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 1130 transitions. [2024-11-08 18:28:27,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:27,630 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1130 transitions. [2024-11-08 18:28:27,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:28:27,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:27,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:27,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:28:27,638 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:27,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:27,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1295133060, now seen corresponding path program 1 times [2024-11-08 18:28:27,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:27,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764943603] [2024-11-08 18:28:27,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:27,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:28,161 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 18:28:28,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764943603] [2024-11-08 18:28:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764943603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:28,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:28,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:28,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549367204] [2024-11-08 18:28:28,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:28,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:28:28,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:28,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:28:28,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:28:28,169 INFO L87 Difference]: Start difference. First operand 741 states and 1130 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:28,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:28,677 INFO L93 Difference]: Finished difference Result 1913 states and 2979 transitions. [2024-11-08 18:28:28,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:28:28,678 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-08 18:28:28,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:28,687 INFO L225 Difference]: With dead ends: 1913 [2024-11-08 18:28:28,687 INFO L226 Difference]: Without dead ends: 1753 [2024-11-08 18:28:28,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:28:28,696 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 2146 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:28,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 2706 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:28:28,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2024-11-08 18:28:28,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 915. [2024-11-08 18:28:28,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 914 states have (on average 1.538293216630197) internal successors, (1406), 914 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:28,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1406 transitions. [2024-11-08 18:28:28,738 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1406 transitions. Word has length 110 [2024-11-08 18:28:28,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:28,738 INFO L471 AbstractCegarLoop]: Abstraction has 915 states and 1406 transitions. [2024-11-08 18:28:28,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:28,739 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1406 transitions. [2024-11-08 18:28:28,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:28:28,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:28,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:28,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:28:28,744 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:28,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:28,744 INFO L85 PathProgramCache]: Analyzing trace with hash 722932112, now seen corresponding path program 1 times [2024-11-08 18:28:28,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:28,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43027318] [2024-11-08 18:28:28,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:28,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:29,253 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 18:28:29,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:29,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43027318] [2024-11-08 18:28:29,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43027318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:29,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:29,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:29,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799648111] [2024-11-08 18:28:29,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:29,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:28:29,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:29,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:28:29,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:28:29,261 INFO L87 Difference]: Start difference. First operand 915 states and 1406 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:29,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:29,726 INFO L93 Difference]: Finished difference Result 2082 states and 3247 transitions. [2024-11-08 18:28:29,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:28:29,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-08 18:28:29,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:29,735 INFO L225 Difference]: With dead ends: 2082 [2024-11-08 18:28:29,735 INFO L226 Difference]: Without dead ends: 1922 [2024-11-08 18:28:29,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:28:29,737 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 2346 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2346 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:29,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2346 Valid, 2685 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:28:29,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2024-11-08 18:28:29,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1079. [2024-11-08 18:28:29,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1078 states have (on average 1.5454545454545454) internal successors, (1666), 1078 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:29,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1666 transitions. [2024-11-08 18:28:29,780 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1666 transitions. Word has length 110 [2024-11-08 18:28:29,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:29,781 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1666 transitions. [2024-11-08 18:28:29,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:29,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1666 transitions. [2024-11-08 18:28:29,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:28:29,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:29,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:29,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:28:29,784 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:29,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:29,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1525369156, now seen corresponding path program 1 times [2024-11-08 18:28:29,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:29,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398346565] [2024-11-08 18:28:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:29,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:30,237 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 18:28:30,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:30,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398346565] [2024-11-08 18:28:30,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398346565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:30,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:30,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:30,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963086547] [2024-11-08 18:28:30,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:30,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:28:30,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:30,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:28:30,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:28:30,242 INFO L87 Difference]: Start difference. First operand 1079 states and 1666 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:30,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:30,703 INFO L93 Difference]: Finished difference Result 2241 states and 3499 transitions. [2024-11-08 18:28:30,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:28:30,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-08 18:28:30,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:30,712 INFO L225 Difference]: With dead ends: 2241 [2024-11-08 18:28:30,713 INFO L226 Difference]: Without dead ends: 2081 [2024-11-08 18:28:30,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:28:30,715 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 2847 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2847 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:30,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2847 Valid, 2592 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:28:30,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2024-11-08 18:28:30,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 1238. [2024-11-08 18:28:30,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 1.5505254648342766) internal successors, (1918), 1237 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:30,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1918 transitions. [2024-11-08 18:28:30,761 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1918 transitions. Word has length 110 [2024-11-08 18:28:30,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:30,762 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1918 transitions. [2024-11-08 18:28:30,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1918 transitions. [2024-11-08 18:28:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:28:30,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:30,765 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:30,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:28:30,766 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:30,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:30,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1186267839, now seen corresponding path program 1 times [2024-11-08 18:28:30,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:30,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255566785] [2024-11-08 18:28:30,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:30,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:31,566 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 18:28:31,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:31,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255566785] [2024-11-08 18:28:31,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255566785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:31,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:31,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:31,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289928639] [2024-11-08 18:28:31,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:31,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:28:31,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:31,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:28:31,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:28:31,571 INFO L87 Difference]: Start difference. First operand 1238 states and 1918 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:32,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:32,208 INFO L93 Difference]: Finished difference Result 2269 states and 3552 transitions. [2024-11-08 18:28:32,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:28:32,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-08 18:28:32,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:32,214 INFO L225 Difference]: With dead ends: 2269 [2024-11-08 18:28:32,214 INFO L226 Difference]: Without dead ends: 1240 [2024-11-08 18:28:32,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:28:32,217 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 656 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:32,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1235 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:28:32,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2024-11-08 18:28:32,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1238. [2024-11-08 18:28:32,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 1.5448666127728374) internal successors, (1911), 1237 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1911 transitions. [2024-11-08 18:28:32,251 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1911 transitions. Word has length 110 [2024-11-08 18:28:32,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:32,252 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1911 transitions. [2024-11-08 18:28:32,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:32,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1911 transitions. [2024-11-08 18:28:32,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:28:32,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:32,255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:32,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:28:32,255 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:32,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:32,256 INFO L85 PathProgramCache]: Analyzing trace with hash 943143488, now seen corresponding path program 1 times [2024-11-08 18:28:32,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:32,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776388914] [2024-11-08 18:28:32,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:32,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:32,399 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 18:28:32,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:32,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776388914] [2024-11-08 18:28:32,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776388914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:32,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:32,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:28:32,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167506865] [2024-11-08 18:28:32,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:32,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:28:32,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:32,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:28:32,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:28:32,402 INFO L87 Difference]: Start difference. First operand 1238 states and 1911 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:32,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:32,454 INFO L93 Difference]: Finished difference Result 3212 states and 5022 transitions. [2024-11-08 18:28:32,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:28:32,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-08 18:28:32,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:32,463 INFO L225 Difference]: With dead ends: 3212 [2024-11-08 18:28:32,463 INFO L226 Difference]: Without dead ends: 2183 [2024-11-08 18:28:32,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:28:32,469 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 115 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:32,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 640 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:28:32,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2024-11-08 18:28:32,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 2181. [2024-11-08 18:28:32,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.5454128440366972) internal successors, (3369), 2180 states have internal predecessors, (3369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:32,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3369 transitions. [2024-11-08 18:28:32,532 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3369 transitions. Word has length 110 [2024-11-08 18:28:32,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:32,533 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3369 transitions. [2024-11-08 18:28:32,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:32,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3369 transitions. [2024-11-08 18:28:32,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:28:32,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:32,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:32,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:28:32,536 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:32,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:32,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2091479554, now seen corresponding path program 1 times [2024-11-08 18:28:32,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:32,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028910038] [2024-11-08 18:28:32,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:32,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:33,020 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 18:28:33,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:33,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028910038] [2024-11-08 18:28:33,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028910038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:33,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:33,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:33,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835026297] [2024-11-08 18:28:33,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:33,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:28:33,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:33,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:28:33,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:28:33,024 INFO L87 Difference]: Start difference. First operand 2181 states and 3369 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:33,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:33,516 INFO L93 Difference]: Finished difference Result 4357 states and 6769 transitions. [2024-11-08 18:28:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:28:33,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-08 18:28:33,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:33,531 INFO L225 Difference]: With dead ends: 4357 [2024-11-08 18:28:33,532 INFO L226 Difference]: Without dead ends: 4052 [2024-11-08 18:28:33,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:28:33,537 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 2149 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:33,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 2975 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:28:33,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2024-11-08 18:28:33,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 2484. [2024-11-08 18:28:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 2483 states have (on average 1.5477245267821185) internal successors, (3843), 2483 states have internal predecessors, (3843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:33,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3843 transitions. [2024-11-08 18:28:33,638 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3843 transitions. Word has length 110 [2024-11-08 18:28:33,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:33,639 INFO L471 AbstractCegarLoop]: Abstraction has 2484 states and 3843 transitions. [2024-11-08 18:28:33,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:33,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3843 transitions. [2024-11-08 18:28:33,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 18:28:33,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:33,641 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:33,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:28:33,642 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:33,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:33,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1690423504, now seen corresponding path program 1 times [2024-11-08 18:28:33,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:33,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899040242] [2024-11-08 18:28:33,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:33,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:34,075 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 18:28:34,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:34,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899040242] [2024-11-08 18:28:34,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899040242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:34,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:34,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:34,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175953373] [2024-11-08 18:28:34,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:34,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:28:34,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:34,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:28:34,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:28:34,079 INFO L87 Difference]: Start difference. First operand 2484 states and 3843 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:34,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:34,533 INFO L93 Difference]: Finished difference Result 4666 states and 7252 transitions. [2024-11-08 18:28:34,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:28:34,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-08 18:28:34,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:34,549 INFO L225 Difference]: With dead ends: 4666 [2024-11-08 18:28:34,550 INFO L226 Difference]: Without dead ends: 4361 [2024-11-08 18:28:34,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:28:34,553 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 2199 mSDsluCounter, 3271 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:34,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2199 Valid, 3676 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:28:34,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2024-11-08 18:28:34,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 2798. [2024-11-08 18:28:34,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.5495173400071505) internal successors, (4334), 2797 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:34,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4334 transitions. [2024-11-08 18:28:34,649 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4334 transitions. Word has length 110 [2024-11-08 18:28:34,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:34,650 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4334 transitions. [2024-11-08 18:28:34,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:34,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4334 transitions. [2024-11-08 18:28:34,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:28:34,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:34,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:34,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:28:34,653 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:34,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1882311825, now seen corresponding path program 1 times [2024-11-08 18:28:34,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:34,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042535030] [2024-11-08 18:28:34,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:34,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:34,898 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 18:28:34,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:34,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042535030] [2024-11-08 18:28:34,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042535030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:34,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:34,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:28:34,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317747088] [2024-11-08 18:28:34,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:34,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:28:34,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:34,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:28:34,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:28:34,902 INFO L87 Difference]: Start difference. First operand 2798 states and 4334 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:35,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:35,167 INFO L93 Difference]: Finished difference Result 5539 states and 8610 transitions. [2024-11-08 18:28:35,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:28:35,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-08 18:28:35,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:35,185 INFO L225 Difference]: With dead ends: 5539 [2024-11-08 18:28:35,186 INFO L226 Difference]: Without dead ends: 2798 [2024-11-08 18:28:35,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:28:35,193 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 742 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:35,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 149 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:28:35,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-11-08 18:28:35,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-11-08 18:28:35,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.5370039327851268) internal successors, (4299), 2797 states have internal predecessors, (4299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:35,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4299 transitions. [2024-11-08 18:28:35,273 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4299 transitions. Word has length 111 [2024-11-08 18:28:35,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:35,273 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4299 transitions. [2024-11-08 18:28:35,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:35,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4299 transitions. [2024-11-08 18:28:35,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:28:35,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:35,276 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:35,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:28:35,277 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:35,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:35,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1093414131, now seen corresponding path program 1 times [2024-11-08 18:28:35,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:35,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269163156] [2024-11-08 18:28:35,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:35,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:35,523 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 18:28:35,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:35,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269163156] [2024-11-08 18:28:35,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269163156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:35,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:35,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:28:35,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946511829] [2024-11-08 18:28:35,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:35,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:28:35,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:35,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:28:35,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:28:35,526 INFO L87 Difference]: Start difference. First operand 2798 states and 4299 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:35,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:35,797 INFO L93 Difference]: Finished difference Result 5523 states and 8521 transitions. [2024-11-08 18:28:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:28:35,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-11-08 18:28:35,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:35,813 INFO L225 Difference]: With dead ends: 5523 [2024-11-08 18:28:35,815 INFO L226 Difference]: Without dead ends: 2798 [2024-11-08 18:28:35,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:28:35,820 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 691 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:35,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 181 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:28:35,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-11-08 18:28:35,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-11-08 18:28:35,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.5244905255631034) internal successors, (4264), 2797 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:35,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4264 transitions. [2024-11-08 18:28:35,896 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4264 transitions. Word has length 112 [2024-11-08 18:28:35,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:35,896 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4264 transitions. [2024-11-08 18:28:35,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:35,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4264 transitions. [2024-11-08 18:28:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:28:35,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:35,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:35,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:28:35,900 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:35,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:35,900 INFO L85 PathProgramCache]: Analyzing trace with hash 596896751, now seen corresponding path program 1 times [2024-11-08 18:28:35,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:35,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225592573] [2024-11-08 18:28:35,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:35,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:36,141 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 18:28:36,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:36,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225592573] [2024-11-08 18:28:36,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225592573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:36,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:36,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:28:36,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225109076] [2024-11-08 18:28:36,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:36,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:28:36,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:36,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:28:36,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:28:36,144 INFO L87 Difference]: Start difference. First operand 2798 states and 4264 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:36,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:36,393 INFO L93 Difference]: Finished difference Result 5515 states and 8442 transitions. [2024-11-08 18:28:36,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:28:36,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2024-11-08 18:28:36,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:36,406 INFO L225 Difference]: With dead ends: 5515 [2024-11-08 18:28:36,409 INFO L226 Difference]: Without dead ends: 2798 [2024-11-08 18:28:36,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:28:36,418 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 663 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:36,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 201 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:28:36,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-11-08 18:28:36,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-11-08 18:28:36,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.5119771183410797) internal successors, (4229), 2797 states have internal predecessors, (4229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4229 transitions. [2024-11-08 18:28:36,490 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4229 transitions. Word has length 113 [2024-11-08 18:28:36,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:36,491 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4229 transitions. [2024-11-08 18:28:36,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:36,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4229 transitions. [2024-11-08 18:28:36,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 18:28:36,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:36,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:36,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:28:36,494 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:36,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:36,495 INFO L85 PathProgramCache]: Analyzing trace with hash 914047091, now seen corresponding path program 1 times [2024-11-08 18:28:36,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:36,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652363413] [2024-11-08 18:28:36,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:36,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:36,711 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 18:28:36,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:36,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652363413] [2024-11-08 18:28:36,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652363413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:36,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:36,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:28:36,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133187465] [2024-11-08 18:28:36,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:36,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:28:36,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:36,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:28:36,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:28:36,715 INFO L87 Difference]: Start difference. First operand 2798 states and 4229 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:36,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:36,959 INFO L93 Difference]: Finished difference Result 5527 states and 8386 transitions. [2024-11-08 18:28:36,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:28:36,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-11-08 18:28:36,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:36,967 INFO L225 Difference]: With dead ends: 5527 [2024-11-08 18:28:36,967 INFO L226 Difference]: Without dead ends: 2798 [2024-11-08 18:28:37,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:28:37,020 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 690 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:37,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 173 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:28:37,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-11-08 18:28:37,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-11-08 18:28:37,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.499463711119056) internal successors, (4194), 2797 states have internal predecessors, (4194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:37,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4194 transitions. [2024-11-08 18:28:37,108 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4194 transitions. Word has length 114 [2024-11-08 18:28:37,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:37,109 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4194 transitions. [2024-11-08 18:28:37,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:37,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4194 transitions. [2024-11-08 18:28:37,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 18:28:37,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:37,112 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:37,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:28:37,113 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:37,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:37,114 INFO L85 PathProgramCache]: Analyzing trace with hash -932538653, now seen corresponding path program 1 times [2024-11-08 18:28:37,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:37,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928053358] [2024-11-08 18:28:37,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:37,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:37,398 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 18:28:37,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:37,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928053358] [2024-11-08 18:28:37,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928053358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:37,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:37,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:28:37,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11259537] [2024-11-08 18:28:37,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:37,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:28:37,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:37,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:28:37,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:28:37,405 INFO L87 Difference]: Start difference. First operand 2798 states and 4194 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:37,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:37,656 INFO L93 Difference]: Finished difference Result 5535 states and 8326 transitions. [2024-11-08 18:28:37,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:28:37,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-11-08 18:28:37,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:37,663 INFO L225 Difference]: With dead ends: 5535 [2024-11-08 18:28:37,663 INFO L226 Difference]: Without dead ends: 2798 [2024-11-08 18:28:37,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:28:37,670 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 706 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:37,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 157 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:28:37,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-11-08 18:28:37,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-11-08 18:28:37,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.4869503038970326) internal successors, (4159), 2797 states have internal predecessors, (4159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:37,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4159 transitions. [2024-11-08 18:28:37,742 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4159 transitions. Word has length 115 [2024-11-08 18:28:37,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:37,743 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4159 transitions. [2024-11-08 18:28:37,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:37,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4159 transitions. [2024-11-08 18:28:37,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 18:28:37,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:37,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:37,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:28:37,747 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:37,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:37,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1866315149, now seen corresponding path program 1 times [2024-11-08 18:28:37,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:37,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458392817] [2024-11-08 18:28:37,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:37,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:37,961 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 18:28:37,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:37,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458392817] [2024-11-08 18:28:37,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458392817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:37,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:37,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:28:37,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478506486] [2024-11-08 18:28:37,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:37,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:28:37,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:37,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:28:37,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:28:37,968 INFO L87 Difference]: Start difference. First operand 2798 states and 4159 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:38,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:38,216 INFO L93 Difference]: Finished difference Result 5531 states and 8252 transitions. [2024-11-08 18:28:38,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:28:38,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-08 18:28:38,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:38,223 INFO L225 Difference]: With dead ends: 5531 [2024-11-08 18:28:38,224 INFO L226 Difference]: Without dead ends: 2798 [2024-11-08 18:28:38,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:28:38,228 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 688 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:38,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 165 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:28:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-11-08 18:28:38,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-11-08 18:28:38,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.474436896675009) internal successors, (4124), 2797 states have internal predecessors, (4124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:38,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4124 transitions. [2024-11-08 18:28:38,317 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4124 transitions. Word has length 116 [2024-11-08 18:28:38,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:38,318 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4124 transitions. [2024-11-08 18:28:38,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:38,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4124 transitions. [2024-11-08 18:28:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 18:28:38,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:38,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:38,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:28:38,321 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:38,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:38,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1607436073, now seen corresponding path program 1 times [2024-11-08 18:28:38,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:38,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107358330] [2024-11-08 18:28:38,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:38,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:38,523 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 18:28:38,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:38,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107358330] [2024-11-08 18:28:38,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107358330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:38,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:38,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:28:38,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817781291] [2024-11-08 18:28:38,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:38,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:28:38,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:38,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:28:38,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:28:38,527 INFO L87 Difference]: Start difference. First operand 2798 states and 4124 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:38,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:38,762 INFO L93 Difference]: Finished difference Result 5519 states and 8170 transitions. [2024-11-08 18:28:38,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:28:38,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-11-08 18:28:38,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:38,768 INFO L225 Difference]: With dead ends: 5519 [2024-11-08 18:28:38,768 INFO L226 Difference]: Without dead ends: 2798 [2024-11-08 18:28:38,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:28:38,772 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 646 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:38,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 189 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:28:38,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-11-08 18:28:38,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-11-08 18:28:38,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.4619234894529853) internal successors, (4089), 2797 states have internal predecessors, (4089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:38,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4089 transitions. [2024-11-08 18:28:38,826 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4089 transitions. Word has length 117 [2024-11-08 18:28:38,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:38,827 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4089 transitions. [2024-11-08 18:28:38,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:38,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4089 transitions. [2024-11-08 18:28:38,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 18:28:38,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:38,829 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:38,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:28:38,830 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:38,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:38,830 INFO L85 PathProgramCache]: Analyzing trace with hash 154166167, now seen corresponding path program 1 times [2024-11-08 18:28:38,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:38,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680214123] [2024-11-08 18:28:38,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:38,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:39,804 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 18:28:39,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:39,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680214123] [2024-11-08 18:28:39,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680214123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:39,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:39,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:28:39,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126174844] [2024-11-08 18:28:39,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:39,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 18:28:39,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:39,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 18:28:39,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:28:39,808 INFO L87 Difference]: Start difference. First operand 2798 states and 4089 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:40,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:40,996 INFO L93 Difference]: Finished difference Result 8121 states and 11895 transitions. [2024-11-08 18:28:40,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:28:40,997 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-08 18:28:40,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:41,009 INFO L225 Difference]: With dead ends: 8121 [2024-11-08 18:28:41,010 INFO L226 Difference]: Without dead ends: 5506 [2024-11-08 18:28:41,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-08 18:28:41,015 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1170 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:41,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 854 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:28:41,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5506 states. [2024-11-08 18:28:41,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5506 to 2798. [2024-11-08 18:28:41,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.4597783339292099) internal successors, (4083), 2797 states have internal predecessors, (4083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:41,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4083 transitions. [2024-11-08 18:28:41,099 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4083 transitions. Word has length 118 [2024-11-08 18:28:41,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:41,100 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4083 transitions. [2024-11-08 18:28:41,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:41,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4083 transitions. [2024-11-08 18:28:41,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 18:28:41,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:41,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:41,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:28:41,103 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:41,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:41,104 INFO L85 PathProgramCache]: Analyzing trace with hash 461834997, now seen corresponding path program 1 times [2024-11-08 18:28:41,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:41,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433214841] [2024-11-08 18:28:41,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:41,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:42,085 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 18:28:42,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:42,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433214841] [2024-11-08 18:28:42,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433214841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:42,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:42,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 18:28:42,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618321961] [2024-11-08 18:28:42,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:42,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:28:42,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:42,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:28:42,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:28:42,090 INFO L87 Difference]: Start difference. First operand 2798 states and 4083 transitions. Second operand has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:43,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:43,473 INFO L93 Difference]: Finished difference Result 8299 states and 12101 transitions. [2024-11-08 18:28:43,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:28:43,474 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-08 18:28:43,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:43,490 INFO L225 Difference]: With dead ends: 8299 [2024-11-08 18:28:43,490 INFO L226 Difference]: Without dead ends: 5721 [2024-11-08 18:28:43,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:28:43,497 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 1400 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:43,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 854 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 18:28:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5721 states. [2024-11-08 18:28:43,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5721 to 2911. [2024-11-08 18:28:43,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 1.4601374570446735) internal successors, (4249), 2910 states have internal predecessors, (4249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:43,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4249 transitions. [2024-11-08 18:28:43,604 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4249 transitions. Word has length 119 [2024-11-08 18:28:43,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:43,604 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4249 transitions. [2024-11-08 18:28:43,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:43,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4249 transitions. [2024-11-08 18:28:43,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 18:28:43,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:43,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:43,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:28:43,608 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:43,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:43,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1766543503, now seen corresponding path program 1 times [2024-11-08 18:28:43,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:43,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418493938] [2024-11-08 18:28:43,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:43,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:44,434 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 18:28:44,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:44,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418493938] [2024-11-08 18:28:44,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418493938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:44,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:44,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:28:44,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983294485] [2024-11-08 18:28:44,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:44,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 18:28:44,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:44,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 18:28:44,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:28:44,437 INFO L87 Difference]: Start difference. First operand 2911 states and 4249 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:45,607 INFO L93 Difference]: Finished difference Result 8252 states and 12067 transitions. [2024-11-08 18:28:45,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:28:45,607 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-08 18:28:45,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:45,619 INFO L225 Difference]: With dead ends: 8252 [2024-11-08 18:28:45,619 INFO L226 Difference]: Without dead ends: 5643 [2024-11-08 18:28:45,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-08 18:28:45,626 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 1101 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:45,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 856 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:28:45,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5643 states. [2024-11-08 18:28:45,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5643 to 2911. [2024-11-08 18:28:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 1.4556701030927834) internal successors, (4236), 2910 states have internal predecessors, (4236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:45,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4236 transitions. [2024-11-08 18:28:45,724 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4236 transitions. Word has length 119 [2024-11-08 18:28:45,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:45,724 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4236 transitions. [2024-11-08 18:28:45,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:45,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4236 transitions. [2024-11-08 18:28:45,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 18:28:45,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:45,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:45,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:28:45,728 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:45,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:45,729 INFO L85 PathProgramCache]: Analyzing trace with hash 227387228, now seen corresponding path program 1 times [2024-11-08 18:28:45,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:45,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140021449] [2024-11-08 18:28:45,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:45,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:46,293 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 18:28:46,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:46,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140021449] [2024-11-08 18:28:46,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140021449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:46,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:46,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:28:46,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396770622] [2024-11-08 18:28:46,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:46,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:28:46,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:46,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:28:46,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:28:46,297 INFO L87 Difference]: Start difference. First operand 2911 states and 4236 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:46,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:46,932 INFO L93 Difference]: Finished difference Result 8248 states and 12081 transitions. [2024-11-08 18:28:46,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:28:46,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2024-11-08 18:28:46,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:46,945 INFO L225 Difference]: With dead ends: 8248 [2024-11-08 18:28:46,945 INFO L226 Difference]: Without dead ends: 5489 [2024-11-08 18:28:46,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:28:46,951 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1040 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:46,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 640 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:28:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2024-11-08 18:28:47,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 2911. [2024-11-08 18:28:47,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 1.4553264604810996) internal successors, (4235), 2910 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:47,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4235 transitions. [2024-11-08 18:28:47,048 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4235 transitions. Word has length 120 [2024-11-08 18:28:47,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:47,048 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4235 transitions. [2024-11-08 18:28:47,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:47,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4235 transitions. [2024-11-08 18:28:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 18:28:47,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:47,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:47,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:28:47,052 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:47,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:47,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1749409920, now seen corresponding path program 1 times [2024-11-08 18:28:47,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:47,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111835840] [2024-11-08 18:28:47,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:47,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:47,640 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 18:28:47,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:47,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111835840] [2024-11-08 18:28:47,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111835840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:47,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:47,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:47,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580419157] [2024-11-08 18:28:47,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:47,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:28:47,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:47,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:28:47,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:28:47,644 INFO L87 Difference]: Start difference. First operand 2911 states and 4235 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:48,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:48,635 INFO L93 Difference]: Finished difference Result 8388 states and 12248 transitions. [2024-11-08 18:28:48,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:28:48,636 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-08 18:28:48,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:48,649 INFO L225 Difference]: With dead ends: 8388 [2024-11-08 18:28:48,649 INFO L226 Difference]: Without dead ends: 5649 [2024-11-08 18:28:48,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:28:48,655 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1115 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:48,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 980 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:28:48,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5649 states. [2024-11-08 18:28:48,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5649 to 2911. [2024-11-08 18:28:48,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 1.4532646048109965) internal successors, (4229), 2910 states have internal predecessors, (4229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4229 transitions. [2024-11-08 18:28:48,738 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4229 transitions. Word has length 121 [2024-11-08 18:28:48,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:48,738 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4229 transitions. [2024-11-08 18:28:48,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:48,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4229 transitions. [2024-11-08 18:28:48,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 18:28:48,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:48,741 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, 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 18:28:48,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:28:48,742 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:48,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:48,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1795722265, now seen corresponding path program 1 times [2024-11-08 18:28:48,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:48,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577480647] [2024-11-08 18:28:48,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:48,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:49,446 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 18:28:49,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:49,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577480647] [2024-11-08 18:28:49,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577480647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:49,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:49,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:49,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750288046] [2024-11-08 18:28:49,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:49,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:28:49,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:49,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:28:49,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:28:49,451 INFO L87 Difference]: Start difference. First operand 2911 states and 4229 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:50,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:50,518 INFO L93 Difference]: Finished difference Result 8427 states and 12287 transitions. [2024-11-08 18:28:50,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:28:50,519 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-11-08 18:28:50,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:50,534 INFO L225 Difference]: With dead ends: 8427 [2024-11-08 18:28:50,534 INFO L226 Difference]: Without dead ends: 5718 [2024-11-08 18:28:50,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:28:50,540 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 1326 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:50,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 803 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:28:50,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2024-11-08 18:28:50,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 2911. [2024-11-08 18:28:50,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 1.4501718213058419) internal successors, (4220), 2910 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:50,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4220 transitions. [2024-11-08 18:28:50,647 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4220 transitions. Word has length 122 [2024-11-08 18:28:50,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:50,647 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4220 transitions. [2024-11-08 18:28:50,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:50,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4220 transitions. [2024-11-08 18:28:50,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 18:28:50,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:50,650 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, 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 18:28:50,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 18:28:50,651 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:50,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:50,654 INFO L85 PathProgramCache]: Analyzing trace with hash -141489226, now seen corresponding path program 1 times [2024-11-08 18:28:50,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:50,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295737227] [2024-11-08 18:28:50,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:50,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,747 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 18:28:51,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:51,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295737227] [2024-11-08 18:28:51,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295737227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:51,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:51,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:28:51,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605983164] [2024-11-08 18:28:51,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:51,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 18:28:51,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:51,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 18:28:51,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:28:51,752 INFO L87 Difference]: Start difference. First operand 2911 states and 4220 transitions. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:53,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:53,722 INFO L93 Difference]: Finished difference Result 14623 states and 21238 transitions. [2024-11-08 18:28:53,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 18:28:53,723 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-08 18:28:53,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:53,751 INFO L225 Difference]: With dead ends: 14623 [2024-11-08 18:28:53,751 INFO L226 Difference]: Without dead ends: 12045 [2024-11-08 18:28:53,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=246, Invalid=746, Unknown=0, NotChecked=0, Total=992 [2024-11-08 18:28:53,759 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 2397 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:53,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 1282 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 18:28:53,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12045 states. [2024-11-08 18:28:53,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12045 to 2914. [2024-11-08 18:28:53,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2913 states have (on average 1.4500514933058701) internal successors, (4224), 2913 states have internal predecessors, (4224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:53,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 4224 transitions. [2024-11-08 18:28:53,914 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 4224 transitions. Word has length 123 [2024-11-08 18:28:53,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:53,915 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 4224 transitions. [2024-11-08 18:28:53,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:53,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 4224 transitions. [2024-11-08 18:28:53,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 18:28:53,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:53,918 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, 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 18:28:53,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 18:28:53,919 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:53,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:53,919 INFO L85 PathProgramCache]: Analyzing trace with hash -297884253, now seen corresponding path program 1 times [2024-11-08 18:28:53,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:53,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592727598] [2024-11-08 18:28:53,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:53,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:54,490 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 18:28:54,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:54,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592727598] [2024-11-08 18:28:54,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592727598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:54,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:54,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:54,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067182320] [2024-11-08 18:28:54,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:54,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:28:54,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:54,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:28:54,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:28:54,493 INFO L87 Difference]: Start difference. First operand 2914 states and 4224 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:55,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:55,411 INFO L93 Difference]: Finished difference Result 8290 states and 12083 transitions. [2024-11-08 18:28:55,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:28:55,412 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-08 18:28:55,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:55,426 INFO L225 Difference]: With dead ends: 8290 [2024-11-08 18:28:55,426 INFO L226 Difference]: Without dead ends: 5599 [2024-11-08 18:28:55,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:28:55,431 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 547 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:55,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 1099 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:28:55,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5599 states. [2024-11-08 18:28:55,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5599 to 2829. [2024-11-08 18:28:55,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2828 states have (on average 1.450848656294201) internal successors, (4103), 2828 states have internal predecessors, (4103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:55,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 4103 transitions. [2024-11-08 18:28:55,507 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 4103 transitions. Word has length 123 [2024-11-08 18:28:55,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:55,507 INFO L471 AbstractCegarLoop]: Abstraction has 2829 states and 4103 transitions. [2024-11-08 18:28:55,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:55,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 4103 transitions. [2024-11-08 18:28:55,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:28:55,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:55,510 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, 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 18:28:55,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 18:28:55,511 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:55,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:55,511 INFO L85 PathProgramCache]: Analyzing trace with hash 182258086, now seen corresponding path program 1 times [2024-11-08 18:28:55,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:55,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674727197] [2024-11-08 18:28:55,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:55,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:56,165 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 18:28:56,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:56,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674727197] [2024-11-08 18:28:56,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674727197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:56,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:56,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:28:56,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547769385] [2024-11-08 18:28:56,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:56,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:28:56,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:56,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:28:56,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:28:56,168 INFO L87 Difference]: Start difference. First operand 2829 states and 4103 transitions. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:57,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:57,178 INFO L93 Difference]: Finished difference Result 8153 states and 11889 transitions. [2024-11-08 18:28:57,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:28:57,179 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-08 18:28:57,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:57,191 INFO L225 Difference]: With dead ends: 8153 [2024-11-08 18:28:57,192 INFO L226 Difference]: Without dead ends: 5575 [2024-11-08 18:28:57,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:28:57,197 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 1039 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:57,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 1002 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:28:57,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2024-11-08 18:28:57,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 2822. [2024-11-08 18:28:57,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2822 states, 2821 states have (on average 1.4519673874512584) internal successors, (4096), 2821 states have internal predecessors, (4096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:57,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2822 states to 2822 states and 4096 transitions. [2024-11-08 18:28:57,274 INFO L78 Accepts]: Start accepts. Automaton has 2822 states and 4096 transitions. Word has length 124 [2024-11-08 18:28:57,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:57,275 INFO L471 AbstractCegarLoop]: Abstraction has 2822 states and 4096 transitions. [2024-11-08 18:28:57,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:28:57,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2822 states and 4096 transitions. [2024-11-08 18:28:57,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:28:57,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:57,277 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, 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 18:28:57,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 18:28:57,278 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:57,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:57,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1094727144, now seen corresponding path program 1 times [2024-11-08 18:28:57,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:57,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596579790] [2024-11-08 18:28:57,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:57,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:58,676 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 18:28:58,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:58,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596579790] [2024-11-08 18:28:58,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596579790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:58,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:58,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:28:58,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884134832] [2024-11-08 18:28:58,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:58,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:28:58,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:58,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:28:58,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:28:58,681 INFO L87 Difference]: Start difference. First operand 2822 states and 4096 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:00,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:00,023 INFO L93 Difference]: Finished difference Result 11354 states and 16627 transitions. [2024-11-08 18:29:00,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:29:00,024 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-08 18:29:00,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:00,047 INFO L225 Difference]: With dead ends: 11354 [2024-11-08 18:29:00,047 INFO L226 Difference]: Without dead ends: 10728 [2024-11-08 18:29:00,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:29:00,054 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 893 mSDsluCounter, 3951 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 4531 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:00,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 4531 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:29:00,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10728 states. [2024-11-08 18:29:00,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10728 to 2813. [2024-11-08 18:29:00,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2812 states have (on average 1.4502133712660028) internal successors, (4078), 2812 states have internal predecessors, (4078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:00,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 4078 transitions. [2024-11-08 18:29:00,216 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 4078 transitions. Word has length 124 [2024-11-08 18:29:00,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:00,217 INFO L471 AbstractCegarLoop]: Abstraction has 2813 states and 4078 transitions. [2024-11-08 18:29:00,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:00,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 4078 transitions. [2024-11-08 18:29:00,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:29:00,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:00,220 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, 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 18:29:00,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 18:29:00,221 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:00,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:00,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2075808265, now seen corresponding path program 1 times [2024-11-08 18:29:00,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:00,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814655456] [2024-11-08 18:29:00,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:00,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:02,447 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 18:29:02,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:02,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814655456] [2024-11-08 18:29:02,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814655456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:02,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:02,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-08 18:29:02,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623950928] [2024-11-08 18:29:02,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:02,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:29:02,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:02,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:29:02,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:29:02,453 INFO L87 Difference]: Start difference. First operand 2813 states and 4078 transitions. Second operand has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 19 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:05,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:05,073 INFO L93 Difference]: Finished difference Result 8808 states and 12864 transitions. [2024-11-08 18:29:05,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 18:29:05,074 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 19 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-08 18:29:05,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:05,089 INFO L225 Difference]: With dead ends: 8808 [2024-11-08 18:29:05,089 INFO L226 Difference]: Without dead ends: 8172 [2024-11-08 18:29:05,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=304, Invalid=1178, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 18:29:05,094 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 1322 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:05,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 4484 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:29:05,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8172 states. [2024-11-08 18:29:05,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8172 to 2818. [2024-11-08 18:29:05,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2817 states have (on average 1.4487042953496627) internal successors, (4081), 2817 states have internal predecessors, (4081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:05,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 4081 transitions. [2024-11-08 18:29:05,220 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 4081 transitions. Word has length 124 [2024-11-08 18:29:05,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:05,221 INFO L471 AbstractCegarLoop]: Abstraction has 2818 states and 4081 transitions. [2024-11-08 18:29:05,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 19 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:05,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 4081 transitions. [2024-11-08 18:29:05,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:29:05,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:05,223 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, 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 18:29:05,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 18:29:05,224 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:05,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:05,225 INFO L85 PathProgramCache]: Analyzing trace with hash 72988073, now seen corresponding path program 1 times [2024-11-08 18:29:05,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:05,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318541300] [2024-11-08 18:29:05,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:05,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:06,463 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 18:29:06,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:06,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318541300] [2024-11-08 18:29:06,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318541300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:06,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:06,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:29:06,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662385882] [2024-11-08 18:29:06,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:06,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:29:06,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:06,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:29:06,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:29:06,466 INFO L87 Difference]: Start difference. First operand 2818 states and 4081 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:07,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:07,539 INFO L93 Difference]: Finished difference Result 11275 states and 16518 transitions. [2024-11-08 18:29:07,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:29:07,540 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-08 18:29:07,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:07,560 INFO L225 Difference]: With dead ends: 11275 [2024-11-08 18:29:07,560 INFO L226 Difference]: Without dead ends: 10667 [2024-11-08 18:29:07,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:29:07,566 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 1387 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:07,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 2600 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:29:07,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10667 states. [2024-11-08 18:29:07,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10667 to 2832. [2024-11-08 18:29:07,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2832 states, 2831 states have (on average 1.4489579653832567) internal successors, (4102), 2831 states have internal predecessors, (4102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 4102 transitions. [2024-11-08 18:29:07,675 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 4102 transitions. Word has length 124 [2024-11-08 18:29:07,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:07,676 INFO L471 AbstractCegarLoop]: Abstraction has 2832 states and 4102 transitions. [2024-11-08 18:29:07,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:07,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 4102 transitions. [2024-11-08 18:29:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:29:07,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:07,678 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, 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 18:29:07,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 18:29:07,678 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:07,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:07,679 INFO L85 PathProgramCache]: Analyzing trace with hash 804653832, now seen corresponding path program 1 times [2024-11-08 18:29:07,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:07,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097430466] [2024-11-08 18:29:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:07,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:08,889 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 18:29:08,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:08,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097430466] [2024-11-08 18:29:08,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097430466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:08,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:08,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 18:29:08,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114758470] [2024-11-08 18:29:08,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:08,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:29:08,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:08,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:29:08,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:29:08,892 INFO L87 Difference]: Start difference. First operand 2832 states and 4102 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:10,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:10,048 INFO L93 Difference]: Finished difference Result 11420 states and 16704 transitions. [2024-11-08 18:29:10,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:29:10,049 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-08 18:29:10,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:10,069 INFO L225 Difference]: With dead ends: 11420 [2024-11-08 18:29:10,069 INFO L226 Difference]: Without dead ends: 10780 [2024-11-08 18:29:10,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:29:10,075 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 1198 mSDsluCounter, 3784 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:10,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 4197 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:29:10,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10780 states. [2024-11-08 18:29:10,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10780 to 2815. [2024-11-08 18:29:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2814 states have (on average 1.4484719260838663) internal successors, (4076), 2814 states have internal predecessors, (4076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:10,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 4076 transitions. [2024-11-08 18:29:10,181 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 4076 transitions. Word has length 124 [2024-11-08 18:29:10,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:10,181 INFO L471 AbstractCegarLoop]: Abstraction has 2815 states and 4076 transitions. [2024-11-08 18:29:10,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:10,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 4076 transitions. [2024-11-08 18:29:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:29:10,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:10,184 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, 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 18:29:10,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 18:29:10,184 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:10,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:10,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1156698250, now seen corresponding path program 1 times [2024-11-08 18:29:10,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:10,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963875886] [2024-11-08 18:29:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:10,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:11,449 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 18:29:11,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:11,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963875886] [2024-11-08 18:29:11,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963875886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:11,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:11,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 18:29:11,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122686599] [2024-11-08 18:29:11,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:11,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 18:29:11,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:11,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 18:29:11,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:29:11,452 INFO L87 Difference]: Start difference. First operand 2815 states and 4076 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:12,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:12,304 INFO L93 Difference]: Finished difference Result 6086 states and 8874 transitions. [2024-11-08 18:29:12,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:29:12,305 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-08 18:29:12,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:12,311 INFO L225 Difference]: With dead ends: 6086 [2024-11-08 18:29:12,311 INFO L226 Difference]: Without dead ends: 5422 [2024-11-08 18:29:12,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-08 18:29:12,315 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 1308 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:12,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1804 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:29:12,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5422 states. [2024-11-08 18:29:12,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5422 to 2780. [2024-11-08 18:29:12,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2779 states have (on average 1.4494422454120186) internal successors, (4028), 2779 states have internal predecessors, (4028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:12,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 4028 transitions. [2024-11-08 18:29:12,385 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 4028 transitions. Word has length 124 [2024-11-08 18:29:12,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:12,386 INFO L471 AbstractCegarLoop]: Abstraction has 2780 states and 4028 transitions. [2024-11-08 18:29:12,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:12,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 4028 transitions. [2024-11-08 18:29:12,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:29:12,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:12,388 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, 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 18:29:12,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 18:29:12,388 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:12,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:12,389 INFO L85 PathProgramCache]: Analyzing trace with hash 115656331, now seen corresponding path program 1 times [2024-11-08 18:29:12,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:12,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496791162] [2024-11-08 18:29:12,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:12,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:13,469 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 18:29:13,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:13,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496791162] [2024-11-08 18:29:13,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496791162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:13,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:13,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:29:13,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36840550] [2024-11-08 18:29:13,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:13,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:29:13,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:13,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:29:13,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:29:13,473 INFO L87 Difference]: Start difference. First operand 2780 states and 4028 transitions. Second operand has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:14,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:14,407 INFO L93 Difference]: Finished difference Result 11192 states and 16395 transitions. [2024-11-08 18:29:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:29:14,408 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-08 18:29:14,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:14,416 INFO L225 Difference]: With dead ends: 11192 [2024-11-08 18:29:14,416 INFO L226 Difference]: Without dead ends: 10532 [2024-11-08 18:29:14,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:29:14,421 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 1190 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 2733 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:14,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 2733 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:29:14,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10532 states. [2024-11-08 18:29:14,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10532 to 2734. [2024-11-08 18:29:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2734 states, 2733 states have (on average 1.4522502744237102) internal successors, (3969), 2733 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2734 states to 2734 states and 3969 transitions. [2024-11-08 18:29:14,530 INFO L78 Accepts]: Start accepts. Automaton has 2734 states and 3969 transitions. Word has length 124 [2024-11-08 18:29:14,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:14,531 INFO L471 AbstractCegarLoop]: Abstraction has 2734 states and 3969 transitions. [2024-11-08 18:29:14,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:14,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2734 states and 3969 transitions. [2024-11-08 18:29:14,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:29:14,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:14,533 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, 1, 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 18:29:14,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-08 18:29:14,533 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:14,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:14,534 INFO L85 PathProgramCache]: Analyzing trace with hash 821814717, now seen corresponding path program 1 times [2024-11-08 18:29:14,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:14,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853178442] [2024-11-08 18:29:14,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:14,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:15,670 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 18:29:15,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:15,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853178442] [2024-11-08 18:29:15,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853178442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:15,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:15,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 18:29:15,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228491515] [2024-11-08 18:29:15,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:15,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 18:29:15,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:15,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 18:29:15,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:29:15,673 INFO L87 Difference]: Start difference. First operand 2734 states and 3969 transitions. Second operand has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:16,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:16,583 INFO L93 Difference]: Finished difference Result 5952 states and 8700 transitions. [2024-11-08 18:29:16,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:29:16,584 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-08 18:29:16,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:16,589 INFO L225 Difference]: With dead ends: 5952 [2024-11-08 18:29:16,589 INFO L226 Difference]: Without dead ends: 5317 [2024-11-08 18:29:16,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-08 18:29:16,591 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 899 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 2760 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:16,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 2760 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:29:16,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5317 states. [2024-11-08 18:29:16,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5317 to 2707. [2024-11-08 18:29:16,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2707 states, 2706 states have (on average 1.4538063562453807) internal successors, (3934), 2706 states have internal predecessors, (3934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:16,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 3934 transitions. [2024-11-08 18:29:16,658 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 3934 transitions. Word has length 125 [2024-11-08 18:29:16,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:16,659 INFO L471 AbstractCegarLoop]: Abstraction has 2707 states and 3934 transitions. [2024-11-08 18:29:16,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:16,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 3934 transitions. [2024-11-08 18:29:16,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:29:16,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:16,661 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, 1, 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 18:29:16,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 18:29:16,662 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:16,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:16,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1380530944, now seen corresponding path program 1 times [2024-11-08 18:29:16,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:16,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569751868] [2024-11-08 18:29:16,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:16,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:23,971 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 18:29:23,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:23,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569751868] [2024-11-08 18:29:23,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569751868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:23,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:23,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2024-11-08 18:29:23,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466619975] [2024-11-08 18:29:23,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:23,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-08 18:29:23,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:23,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-08 18:29:23,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1872, Unknown=0, NotChecked=0, Total=1980 [2024-11-08 18:29:23,975 INFO L87 Difference]: Start difference. First operand 2707 states and 3934 transitions. Second operand has 45 states, 45 states have (on average 2.7777777777777777) internal successors, (125), 45 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:50,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:50,796 INFO L93 Difference]: Finished difference Result 21533 states and 31609 transitions. [2024-11-08 18:29:50,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-08 18:29:50,797 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.7777777777777777) internal successors, (125), 45 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-08 18:29:50,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:50,823 INFO L225 Difference]: With dead ends: 21533 [2024-11-08 18:29:50,824 INFO L226 Difference]: Without dead ends: 20925 [2024-11-08 18:29:50,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=911, Invalid=6229, Unknown=0, NotChecked=0, Total=7140 [2024-11-08 18:29:50,833 INFO L432 NwaCegarLoop]: 799 mSDtfsCounter, 2562 mSDsluCounter, 22665 mSDsCounter, 0 mSdLazyCounter, 15074 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2562 SdHoareTripleChecker+Valid, 23464 SdHoareTripleChecker+Invalid, 15091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 15074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:50,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2562 Valid, 23464 Invalid, 15091 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [17 Valid, 15074 Invalid, 0 Unknown, 0 Unchecked, 16.8s Time] [2024-11-08 18:29:50,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20925 states. [2024-11-08 18:29:51,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20925 to 2733. [2024-11-08 18:29:51,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 2732 states have (on average 1.4520497803806736) internal successors, (3967), 2732 states have internal predecessors, (3967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:51,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 3967 transitions. [2024-11-08 18:29:51,015 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 3967 transitions. Word has length 125 [2024-11-08 18:29:51,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:51,015 INFO L471 AbstractCegarLoop]: Abstraction has 2733 states and 3967 transitions. [2024-11-08 18:29:51,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.7777777777777777) internal successors, (125), 45 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:51,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 3967 transitions. [2024-11-08 18:29:51,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:29:51,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:51,017 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, 1, 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 18:29:51,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 18:29:51,018 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:51,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:51,018 INFO L85 PathProgramCache]: Analyzing trace with hash 826424512, now seen corresponding path program 1 times [2024-11-08 18:29:51,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:51,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276800072] [2024-11-08 18:29:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:51,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:51,218 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 18:29:51,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:51,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276800072] [2024-11-08 18:29:51,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276800072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:51,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:51,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:29:51,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738834869] [2024-11-08 18:29:51,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:51,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:29:51,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:51,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:29:51,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:29:51,223 INFO L87 Difference]: Start difference. First operand 2733 states and 3967 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:51,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:51,270 INFO L93 Difference]: Finished difference Result 7753 states and 11385 transitions. [2024-11-08 18:29:51,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:29:51,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-08 18:29:51,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:51,275 INFO L225 Difference]: With dead ends: 7753 [2024-11-08 18:29:51,275 INFO L226 Difference]: Without dead ends: 5175 [2024-11-08 18:29:51,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:29:51,278 INFO L432 NwaCegarLoop]: 353 mSDtfsCounter, 125 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:51,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 547 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:29:51,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5175 states. [2024-11-08 18:29:51,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5175 to 5037. [2024-11-08 18:29:51,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5037 states, 5036 states have (on average 1.4525416997617155) internal successors, (7315), 5036 states have internal predecessors, (7315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5037 states to 5037 states and 7315 transitions. [2024-11-08 18:29:51,338 INFO L78 Accepts]: Start accepts. Automaton has 5037 states and 7315 transitions. Word has length 125 [2024-11-08 18:29:51,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:51,339 INFO L471 AbstractCegarLoop]: Abstraction has 5037 states and 7315 transitions. [2024-11-08 18:29:51,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 5037 states and 7315 transitions. [2024-11-08 18:29:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:29:51,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:51,340 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, 1, 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 18:29:51,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-08 18:29:51,340 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:51,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:51,341 INFO L85 PathProgramCache]: Analyzing trace with hash -524465052, now seen corresponding path program 1 times [2024-11-08 18:29:51,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:51,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576885280] [2024-11-08 18:29:51,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:51,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:51,882 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 18:29:51,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:51,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576885280] [2024-11-08 18:29:51,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576885280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:51,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:51,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:29:51,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582112147] [2024-11-08 18:29:51,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:51,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:29:51,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:51,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:29:51,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:29:51,886 INFO L87 Difference]: Start difference. First operand 5037 states and 7315 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:51,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:51,942 INFO L93 Difference]: Finished difference Result 5071 states and 7364 transitions. [2024-11-08 18:29:51,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:29:51,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-08 18:29:51,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:51,949 INFO L225 Difference]: With dead ends: 5071 [2024-11-08 18:29:51,950 INFO L226 Difference]: Without dead ends: 5069 [2024-11-08 18:29:51,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:29:51,952 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:51,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 957 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:29:51,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5069 states. [2024-11-08 18:29:52,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5069 to 5069. [2024-11-08 18:29:52,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 1.4461325966850829) internal successors, (7329), 5068 states have internal predecessors, (7329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:52,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 7329 transitions. [2024-11-08 18:29:52,032 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 7329 transitions. Word has length 125 [2024-11-08 18:29:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:52,032 INFO L471 AbstractCegarLoop]: Abstraction has 5069 states and 7329 transitions. [2024-11-08 18:29:52,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:52,033 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 7329 transitions. [2024-11-08 18:29:52,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 18:29:52,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:52,034 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, 1, 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 18:29:52,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-08 18:29:52,034 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:52,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash 763218784, now seen corresponding path program 1 times [2024-11-08 18:29:52,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:52,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045427616] [2024-11-08 18:29:52,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:52,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:52,313 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 18:29:52,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:52,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045427616] [2024-11-08 18:29:52,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045427616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:52,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:52,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:29:52,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073995840] [2024-11-08 18:29:52,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:52,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:29:52,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:52,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:29:52,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:29:52,318 INFO L87 Difference]: Start difference. First operand 5069 states and 7329 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:52,387 INFO L93 Difference]: Finished difference Result 12071 states and 17536 transitions. [2024-11-08 18:29:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:29:52,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-08 18:29:52,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:52,396 INFO L225 Difference]: With dead ends: 12071 [2024-11-08 18:29:52,397 INFO L226 Difference]: Without dead ends: 7157 [2024-11-08 18:29:52,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:29:52,403 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 115 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:52,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 584 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:29:52,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7157 states. [2024-11-08 18:29:52,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7157 to 7155. [2024-11-08 18:29:52,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7155 states, 7154 states have (on average 1.4439474419904947) internal successors, (10330), 7154 states have internal predecessors, (10330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7155 states to 7155 states and 10330 transitions. [2024-11-08 18:29:52,511 INFO L78 Accepts]: Start accepts. Automaton has 7155 states and 10330 transitions. Word has length 125 [2024-11-08 18:29:52,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:52,512 INFO L471 AbstractCegarLoop]: Abstraction has 7155 states and 10330 transitions. [2024-11-08 18:29:52,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:52,512 INFO L276 IsEmpty]: Start isEmpty. Operand 7155 states and 10330 transitions. [2024-11-08 18:29:52,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 18:29:52,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:52,513 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, 1, 1, 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 18:29:52,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-08 18:29:52,514 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:52,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:52,514 INFO L85 PathProgramCache]: Analyzing trace with hash 855829807, now seen corresponding path program 1 times [2024-11-08 18:29:52,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:52,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591177808] [2024-11-08 18:29:52,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:52,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:53,638 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 18:29:53,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:53,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591177808] [2024-11-08 18:29:53,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591177808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:53,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:53,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 18:29:53,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866517179] [2024-11-08 18:29:53,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:53,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 18:29:53,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:53,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 18:29:53,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:29:53,641 INFO L87 Difference]: Start difference. First operand 7155 states and 10330 transitions. Second operand has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:54,662 INFO L93 Difference]: Finished difference Result 15880 states and 22995 transitions. [2024-11-08 18:29:54,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:29:54,662 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-11-08 18:29:54,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:54,677 INFO L225 Difference]: With dead ends: 15880 [2024-11-08 18:29:54,677 INFO L226 Difference]: Without dead ends: 14155 [2024-11-08 18:29:54,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-08 18:29:54,683 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 852 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:54,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 2581 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:29:54,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14155 states. [2024-11-08 18:29:54,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14155 to 7123. [2024-11-08 18:29:54,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7123 states, 7122 states have (on average 1.4448188711036225) internal successors, (10290), 7122 states have internal predecessors, (10290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:54,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7123 states to 7123 states and 10290 transitions. [2024-11-08 18:29:54,827 INFO L78 Accepts]: Start accepts. Automaton has 7123 states and 10290 transitions. Word has length 126 [2024-11-08 18:29:54,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:54,828 INFO L471 AbstractCegarLoop]: Abstraction has 7123 states and 10290 transitions. [2024-11-08 18:29:54,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:54,828 INFO L276 IsEmpty]: Start isEmpty. Operand 7123 states and 10290 transitions. [2024-11-08 18:29:54,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 18:29:54,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:54,832 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:54,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-08 18:29:54,832 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:54,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:54,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1992589041, now seen corresponding path program 1 times [2024-11-08 18:29:54,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:54,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97160349] [2024-11-08 18:29:54,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:54,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:29:55,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:55,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97160349] [2024-11-08 18:29:55,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97160349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:55,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:55,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:29:55,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026468870] [2024-11-08 18:29:55,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:55,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:29:55,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:55,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:29:55,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:29:55,093 INFO L87 Difference]: Start difference. First operand 7123 states and 10290 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:55,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:55,168 INFO L93 Difference]: Finished difference Result 14789 states and 21409 transitions. [2024-11-08 18:29:55,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:29:55,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2024-11-08 18:29:55,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:55,182 INFO L225 Difference]: With dead ends: 14789 [2024-11-08 18:29:55,182 INFO L226 Difference]: Without dead ends: 9875 [2024-11-08 18:29:55,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:29:55,191 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 109 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:55,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 536 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:29:55,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9875 states. [2024-11-08 18:29:55,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9875 to 9597. [2024-11-08 18:29:55,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9596 states have (on average 1.4417465610671112) internal successors, (13835), 9596 states have internal predecessors, (13835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:55,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 13835 transitions. [2024-11-08 18:29:55,358 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 13835 transitions. Word has length 161 [2024-11-08 18:29:55,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:55,359 INFO L471 AbstractCegarLoop]: Abstraction has 9597 states and 13835 transitions. [2024-11-08 18:29:55,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 13835 transitions. [2024-11-08 18:29:55,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 18:29:55,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:55,362 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:55,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-08 18:29:55,362 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:55,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:55,363 INFO L85 PathProgramCache]: Analyzing trace with hash -577623344, now seen corresponding path program 1 times [2024-11-08 18:29:55,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:55,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584410168] [2024-11-08 18:29:55,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:55,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:29:55,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:55,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584410168] [2024-11-08 18:29:55,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584410168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:55,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:55,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:29:55,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222205409] [2024-11-08 18:29:55,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:55,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:29:55,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:55,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:29:55,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:29:55,732 INFO L87 Difference]: Start difference. First operand 9597 states and 13835 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:56,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:56,256 INFO L93 Difference]: Finished difference Result 40933 states and 59573 transitions. [2024-11-08 18:29:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:29:56,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-11-08 18:29:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:56,288 INFO L225 Difference]: With dead ends: 40933 [2024-11-08 18:29:56,288 INFO L226 Difference]: Without dead ends: 31469 [2024-11-08 18:29:56,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:29:56,302 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 1417 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:56,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 486 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:29:56,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31469 states. [2024-11-08 18:29:56,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31469 to 20379. [2024-11-08 18:29:56,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20379 states, 20378 states have (on average 1.4416036902541958) internal successors, (29377), 20378 states have internal predecessors, (29377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:56,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20379 states to 20379 states and 29377 transitions. [2024-11-08 18:29:56,578 INFO L78 Accepts]: Start accepts. Automaton has 20379 states and 29377 transitions. Word has length 163 [2024-11-08 18:29:56,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:56,579 INFO L471 AbstractCegarLoop]: Abstraction has 20379 states and 29377 transitions. [2024-11-08 18:29:56,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:56,579 INFO L276 IsEmpty]: Start isEmpty. Operand 20379 states and 29377 transitions. [2024-11-08 18:29:56,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 18:29:56,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:56,581 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:56,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-08 18:29:56,582 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:56,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:56,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1124611644, now seen corresponding path program 1 times [2024-11-08 18:29:56,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:56,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094805740] [2024-11-08 18:29:56,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:56,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:29:56,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:56,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094805740] [2024-11-08 18:29:56,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094805740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:56,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:56,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:29:56,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285953758] [2024-11-08 18:29:56,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:56,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:29:56,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:56,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:29:56,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:29:56,885 INFO L87 Difference]: Start difference. First operand 20379 states and 29377 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:57,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:57,512 INFO L93 Difference]: Finished difference Result 80407 states and 116627 transitions. [2024-11-08 18:29:57,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:29:57,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-11-08 18:29:57,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:57,730 INFO L225 Difference]: With dead ends: 80407 [2024-11-08 18:29:57,730 INFO L226 Difference]: Without dead ends: 60161 [2024-11-08 18:29:57,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:29:57,745 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 1332 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:57,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 484 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:29:57,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60161 states. [2024-11-08 18:29:58,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60161 to 43263. [2024-11-08 18:29:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43263 states, 43262 states have (on average 1.4402709074938744) internal successors, (62309), 43262 states have internal predecessors, (62309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43263 states to 43263 states and 62309 transitions. [2024-11-08 18:29:58,641 INFO L78 Accepts]: Start accepts. Automaton has 43263 states and 62309 transitions. Word has length 163 [2024-11-08 18:29:58,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:58,642 INFO L471 AbstractCegarLoop]: Abstraction has 43263 states and 62309 transitions. [2024-11-08 18:29:58,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:58,642 INFO L276 IsEmpty]: Start isEmpty. Operand 43263 states and 62309 transitions. [2024-11-08 18:29:58,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 18:29:58,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:58,646 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:58,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-08 18:29:58,647 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:58,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:58,648 INFO L85 PathProgramCache]: Analyzing trace with hash -960554568, now seen corresponding path program 1 times [2024-11-08 18:29:58,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:58,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038584021] [2024-11-08 18:29:58,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:58,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:59,141 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:29:59,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:59,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038584021] [2024-11-08 18:29:59,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038584021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:59,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:59,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:29:59,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790845241] [2024-11-08 18:29:59,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:59,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:29:59,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:59,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:29:59,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:29:59,144 INFO L87 Difference]: Start difference. First operand 43263 states and 62309 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:00,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:00,248 INFO L93 Difference]: Finished difference Result 158035 states and 228359 transitions. [2024-11-08 18:30:00,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:30:00,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-11-08 18:30:00,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:00,555 INFO L225 Difference]: With dead ends: 158035 [2024-11-08 18:30:00,555 INFO L226 Difference]: Without dead ends: 114905 [2024-11-08 18:30:00,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:30:00,615 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 1247 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:00,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 482 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:30:00,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114905 states. [2024-11-08 18:30:01,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114905 to 91671. [2024-11-08 18:30:02,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91671 states, 91670 states have (on average 1.4385185993236609) internal successors, (131869), 91670 states have internal predecessors, (131869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:02,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91671 states to 91671 states and 131869 transitions. [2024-11-08 18:30:02,444 INFO L78 Accepts]: Start accepts. Automaton has 91671 states and 131869 transitions. Word has length 163 [2024-11-08 18:30:02,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:02,444 INFO L471 AbstractCegarLoop]: Abstraction has 91671 states and 131869 transitions. [2024-11-08 18:30:02,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:02,445 INFO L276 IsEmpty]: Start isEmpty. Operand 91671 states and 131869 transitions. [2024-11-08 18:30:02,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 18:30:02,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:02,449 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:30:02,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-08 18:30:02,449 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:02,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:02,450 INFO L85 PathProgramCache]: Analyzing trace with hash 821175401, now seen corresponding path program 1 times [2024-11-08 18:30:02,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:02,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102893096] [2024-11-08 18:30:02,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:02,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:03,104 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:03,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:03,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102893096] [2024-11-08 18:30:03,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102893096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:03,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:30:03,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:30:03,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507976849] [2024-11-08 18:30:03,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:03,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:30:03,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:03,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:30:03,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:30:03,112 INFO L87 Difference]: Start difference. First operand 91671 states and 131869 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:04,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:04,949 INFO L93 Difference]: Finished difference Result 310651 states and 447071 transitions. [2024-11-08 18:30:04,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:30:04,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-11-08 18:30:04,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:05,247 INFO L225 Difference]: With dead ends: 310651 [2024-11-08 18:30:05,247 INFO L226 Difference]: Without dead ends: 219113 [2024-11-08 18:30:05,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:30:05,310 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 1162 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:05,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 480 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:30:05,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219113 states. [2024-11-08 18:30:08,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219113 to 193767. [2024-11-08 18:30:08,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193767 states, 193766 states have (on average 1.4366865187907063) internal successors, (278381), 193766 states have internal predecessors, (278381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:09,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193767 states to 193767 states and 278381 transitions. [2024-11-08 18:30:09,646 INFO L78 Accepts]: Start accepts. Automaton has 193767 states and 278381 transitions. Word has length 163 [2024-11-08 18:30:09,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:09,646 INFO L471 AbstractCegarLoop]: Abstraction has 193767 states and 278381 transitions. [2024-11-08 18:30:09,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:09,647 INFO L276 IsEmpty]: Start isEmpty. Operand 193767 states and 278381 transitions. [2024-11-08 18:30:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 18:30:09,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:09,653 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:30:09,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-08 18:30:09,654 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:09,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:09,654 INFO L85 PathProgramCache]: Analyzing trace with hash 482784995, now seen corresponding path program 1 times [2024-11-08 18:30:09,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:09,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709194173] [2024-11-08 18:30:09,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:09,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:09,930 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:09,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:09,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709194173] [2024-11-08 18:30:09,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709194173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:09,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757869418] [2024-11-08 18:30:09,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:09,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:09,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:09,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:09,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:30:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:10,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:30:10,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:11,115 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:30:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:11,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757869418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:30:11,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:30:11,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-08 18:30:11,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70099741] [2024-11-08 18:30:11,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:30:11,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:30:11,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:11,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:30:11,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:30:11,504 INFO L87 Difference]: Start difference. First operand 193767 states and 278381 transitions. Second operand has 11 states, 11 states have (on average 26.454545454545453) internal successors, (291), 10 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:14,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:14,810 INFO L93 Difference]: Finished difference Result 610603 states and 874991 transitions. [2024-11-08 18:30:14,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:30:14,811 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 26.454545454545453) internal successors, (291), 10 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-11-08 18:30:14,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:15,521 INFO L225 Difference]: With dead ends: 610603 [2024-11-08 18:30:15,521 INFO L226 Difference]: Without dead ends: 416969 [2024-11-08 18:30:15,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 316 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:30:15,674 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 701 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:15,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 689 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:30:15,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416969 states. [2024-11-08 18:30:22,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416969 to 406407. [2024-11-08 18:30:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406407 states, 406406 states have (on average 1.4267825770288824) internal successors, (579853), 406406 states have internal predecessors, (579853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:24,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406407 states to 406407 states and 579853 transitions. [2024-11-08 18:30:24,698 INFO L78 Accepts]: Start accepts. Automaton has 406407 states and 579853 transitions. Word has length 163 [2024-11-08 18:30:24,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:24,698 INFO L471 AbstractCegarLoop]: Abstraction has 406407 states and 579853 transitions. [2024-11-08 18:30:24,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 26.454545454545453) internal successors, (291), 10 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:24,698 INFO L276 IsEmpty]: Start isEmpty. Operand 406407 states and 579853 transitions. [2024-11-08 18:30:24,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 18:30:24,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:24,702 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:30:24,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:30:24,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6c42d7-c70d-4284-8b5a-65f88ea803d3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-08 18:30:24,903 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:24,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:24,905 INFO L85 PathProgramCache]: Analyzing trace with hash 882545537, now seen corresponding path program 1 times [2024-11-08 18:30:24,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:24,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205939735] [2024-11-08 18:30:24,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:24,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:25,277 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:25,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:25,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205939735] [2024-11-08 18:30:25,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205939735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:25,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:30:25,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:30:25,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286830971] [2024-11-08 18:30:25,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:25,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:30:25,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:25,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:30:25,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:30:25,281 INFO L87 Difference]: Start difference. First operand 406407 states and 579853 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:30,361 INFO L93 Difference]: Finished difference Result 920222 states and 1314533 transitions. [2024-11-08 18:30:30,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:30:30,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-11-08 18:30:30,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:31,093 INFO L225 Difference]: With dead ends: 920222 [2024-11-08 18:30:31,093 INFO L226 Difference]: Without dead ends: 513948 [2024-11-08 18:30:31,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:30:31,291 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1241 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:31,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 552 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:30:32,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513948 states.