./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal8.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya --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 64bit --witnessprinter.graph.data.programhash d82959c62cace714afaf213af74bee360c622cff96341a6c72954e4dbd868971 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:30:49,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:30:49,799 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 02:30:49,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:30:49,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:30:49,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:30:49,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:30:49,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:30:49,828 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:30:49,828 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:30:49,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:30:49,830 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:30:49,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:30:49,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:30:49,831 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:30:49,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:30:49,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:30:49,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:30:49,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:30:49,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:30:49,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:30:49,836 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:30:49,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:30:49,837 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:30:49,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:30:49,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:30:49,838 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:30:49,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:30:49,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:30:49,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:30:49,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:30:49,840 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:30:49,840 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:30:49,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:30:49,841 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:30:49,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:30:49,841 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:30:49,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:30:49,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:30:49,842 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_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d82959c62cace714afaf213af74bee360c622cff96341a6c72954e4dbd868971 [2023-11-29 02:30:50,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:30:50,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:30:50,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:30:50,087 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:30:50,087 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:30:50,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal8.c [2023-11-29 02:30:52,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:30:53,129 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:30:53,129 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal8.c [2023-11-29 02:30:53,148 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/data/788bc8317/c366ebbc88a047c3829f6916d3230f46/FLAG5027ee47d [2023-11-29 02:30:53,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/data/788bc8317/c366ebbc88a047c3829f6916d3230f46 [2023-11-29 02:30:53,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:30:53,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:30:53,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:30:53,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:30:53,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:30:53,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:53,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@afb5c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53, skipping insertion in model container [2023-11-29 02:30:53,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:53,234 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:30:53,388 WARN L240 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_f41a5110-a059-4a14-b15f-a4fec5f2f275/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal8.c[1244,1257] [2023-11-29 02:30:53,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:30:53,666 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:30:53,675 WARN L240 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_f41a5110-a059-4a14-b15f-a4fec5f2f275/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal8.c[1244,1257] [2023-11-29 02:30:53,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:30:53,820 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:30:53,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53 WrapperNode [2023-11-29 02:30:53,820 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:30:53,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:30:53,822 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:30:53,822 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:30:53,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:53,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:54,364 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4215 [2023-11-29 02:30:54,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:30:54,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:30:54,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:30:54,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:30:54,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:54,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:54,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:54,523 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2023-11-29 02:30:54,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:54,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:54,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:54,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:54,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:54,703 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:54,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:30:54,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:30:54,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:30:54,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:30:54,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (1/1) ... [2023-11-29 02:30:54,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:30:54,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:30:54,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:30:54,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41a5110-a059-4a14-b15f-a4fec5f2f275/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:30:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:30:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:30:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 02:30:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:30:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:30:55,146 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:30:55,148 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:30:57,960 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:30:58,051 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:30:58,051 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:30:58,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:30:58 BoogieIcfgContainer [2023-11-29 02:30:58,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:30:58,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:30:58,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:30:58,057 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:30:58,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:30:53" (1/3) ... [2023-11-29 02:30:58,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71be7e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:30:58, skipping insertion in model container [2023-11-29 02:30:58,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:30:53" (2/3) ... [2023-11-29 02:30:58,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71be7e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:30:58, skipping insertion in model container [2023-11-29 02:30:58,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:30:58" (3/3) ... [2023-11-29 02:30:58,060 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal8.c [2023-11-29 02:30:58,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:30:58,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:30:58,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:30:58,143 INFO L357 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, mHoare=true, 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;@4855abae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:30:58,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:30:58,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 824 states, 822 states have (on average 1.667883211678832) internal successors, (1371), 823 states have internal predecessors, (1371), 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) [2023-11-29 02:30:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-11-29 02:30:58,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:30:58,177 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:30:58,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:30:58,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:30:58,183 INFO L85 PathProgramCache]: Analyzing trace with hash -693328762, now seen corresponding path program 1 times [2023-11-29 02:30:58,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:30:58,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548165515] [2023-11-29 02:30:58,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:30:58,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:05,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:05,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:05,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548165515] [2023-11-29 02:31:05,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548165515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:05,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:05,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:31:05,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679033531] [2023-11-29 02:31:05,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:05,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:31:05,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:05,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:31:05,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:31:05,547 INFO L87 Difference]: Start difference. First operand has 824 states, 822 states have (on average 1.667883211678832) internal successors, (1371), 823 states have internal predecessors, (1371), 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 6 states, 6 states have (on average 58.333333333333336) internal successors, (350), 5 states have internal predecessors, (350), 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) [2023-11-29 02:31:06,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:06,089 INFO L93 Difference]: Finished difference Result 2917 states and 4863 transitions. [2023-11-29 02:31:06,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:31:06,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.333333333333336) internal successors, (350), 5 states have internal predecessors, (350), 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 350 [2023-11-29 02:31:06,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:06,121 INFO L225 Difference]: With dead ends: 2917 [2023-11-29 02:31:06,121 INFO L226 Difference]: Without dead ends: 2115 [2023-11-29 02:31:06,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:31:06,131 INFO L413 NwaCegarLoop]: 2159 mSDtfsCounter, 7167 mSDsluCounter, 4042 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7167 SdHoareTripleChecker+Valid, 6201 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:06,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7167 Valid, 6201 Invalid, 88 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:31:06,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2023-11-29 02:31:06,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1316. [2023-11-29 02:31:06,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1315 states have (on average 1.6653992395437263) internal successors, (2190), 1315 states have internal predecessors, (2190), 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) [2023-11-29 02:31:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 2190 transitions. [2023-11-29 02:31:06,231 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 2190 transitions. Word has length 350 [2023-11-29 02:31:06,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:06,233 INFO L495 AbstractCegarLoop]: Abstraction has 1316 states and 2190 transitions. [2023-11-29 02:31:06,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.333333333333336) internal successors, (350), 5 states have internal predecessors, (350), 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) [2023-11-29 02:31:06,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 2190 transitions. [2023-11-29 02:31:06,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-11-29 02:31:06,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:06,243 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:06,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:31:06,243 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:06,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:06,244 INFO L85 PathProgramCache]: Analyzing trace with hash -642816443, now seen corresponding path program 1 times [2023-11-29 02:31:06,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:06,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682468454] [2023-11-29 02:31:06,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:06,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:10,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:10,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:10,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682468454] [2023-11-29 02:31:10,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682468454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:10,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:10,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:31:10,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849148657] [2023-11-29 02:31:10,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:10,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:31:10,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:10,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:31:10,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:31:10,662 INFO L87 Difference]: Start difference. First operand 1316 states and 2190 transitions. Second operand has 5 states, 5 states have (on average 70.2) internal successors, (351), 4 states have internal predecessors, (351), 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) [2023-11-29 02:31:11,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:11,108 INFO L93 Difference]: Finished difference Result 2132 states and 3545 transitions. [2023-11-29 02:31:11,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:31:11,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 4 states have internal predecessors, (351), 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 351 [2023-11-29 02:31:11,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:11,117 INFO L225 Difference]: With dead ends: 2132 [2023-11-29 02:31:11,117 INFO L226 Difference]: Without dead ends: 1324 [2023-11-29 02:31:11,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:31:11,120 INFO L413 NwaCegarLoop]: 1212 mSDtfsCounter, 1038 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:11,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 3632 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:31:11,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2023-11-29 02:31:11,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1322. [2023-11-29 02:31:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1321 states have (on average 1.6623769871309615) internal successors, (2196), 1321 states have internal predecessors, (2196), 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) [2023-11-29 02:31:11,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 2196 transitions. [2023-11-29 02:31:11,163 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 2196 transitions. Word has length 351 [2023-11-29 02:31:11,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:11,164 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 2196 transitions. [2023-11-29 02:31:11,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 4 states have internal predecessors, (351), 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) [2023-11-29 02:31:11,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 2196 transitions. [2023-11-29 02:31:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-11-29 02:31:11,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:11,171 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:11,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:31:11,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:11,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:11,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1079546550, now seen corresponding path program 1 times [2023-11-29 02:31:11,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:11,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693729437] [2023-11-29 02:31:11,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:11,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:14,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:14,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:14,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693729437] [2023-11-29 02:31:14,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693729437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:14,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:14,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:31:14,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711231646] [2023-11-29 02:31:14,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:14,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:31:14,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:14,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:31:14,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:31:14,584 INFO L87 Difference]: Start difference. First operand 1322 states and 2196 transitions. Second operand has 8 states, 8 states have (on average 44.0) internal successors, (352), 7 states have internal predecessors, (352), 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) [2023-11-29 02:31:15,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:15,492 INFO L93 Difference]: Finished difference Result 5481 states and 9077 transitions. [2023-11-29 02:31:15,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:31:15,492 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.0) internal successors, (352), 7 states have internal predecessors, (352), 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 352 [2023-11-29 02:31:15,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:15,518 INFO L225 Difference]: With dead ends: 5481 [2023-11-29 02:31:15,518 INFO L226 Difference]: Without dead ends: 4600 [2023-11-29 02:31:15,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:31:15,523 INFO L413 NwaCegarLoop]: 1873 mSDtfsCounter, 10044 mSDsluCounter, 10173 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10044 SdHoareTripleChecker+Valid, 12046 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:15,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10044 Valid, 12046 Invalid, 511 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:31:15,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4600 states. [2023-11-29 02:31:15,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4600 to 2895. [2023-11-29 02:31:15,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2894 states have (on average 1.6451278507256393) internal successors, (4761), 2894 states have internal predecessors, (4761), 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) [2023-11-29 02:31:15,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 4761 transitions. [2023-11-29 02:31:15,616 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 4761 transitions. Word has length 352 [2023-11-29 02:31:15,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:15,617 INFO L495 AbstractCegarLoop]: Abstraction has 2895 states and 4761 transitions. [2023-11-29 02:31:15,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.0) internal successors, (352), 7 states have internal predecessors, (352), 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) [2023-11-29 02:31:15,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 4761 transitions. [2023-11-29 02:31:15,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-11-29 02:31:15,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:15,626 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:15,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:31:15,626 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:15,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:15,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1443126834, now seen corresponding path program 1 times [2023-11-29 02:31:15,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:15,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272274904] [2023-11-29 02:31:15,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:15,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:17,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:17,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:17,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272274904] [2023-11-29 02:31:17,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272274904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:17,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:17,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:31:17,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558064790] [2023-11-29 02:31:17,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:17,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:31:17,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:17,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:31:17,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:31:17,071 INFO L87 Difference]: Start difference. First operand 2895 states and 4761 transitions. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 3 states have internal predecessors, (352), 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) [2023-11-29 02:31:17,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:17,350 INFO L93 Difference]: Finished difference Result 4178 states and 6887 transitions. [2023-11-29 02:31:17,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:31:17,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 3 states have internal predecessors, (352), 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 352 [2023-11-29 02:31:17,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:17,360 INFO L225 Difference]: With dead ends: 4178 [2023-11-29 02:31:17,360 INFO L226 Difference]: Without dead ends: 1992 [2023-11-29 02:31:17,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:31:17,363 INFO L413 NwaCegarLoop]: 1214 mSDtfsCounter, 1045 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:17,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 2426 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:31:17,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2023-11-29 02:31:17,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1992. [2023-11-29 02:31:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1992 states, 1991 states have (on average 1.6614766449020593) internal successors, (3308), 1991 states have internal predecessors, (3308), 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) [2023-11-29 02:31:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1992 states to 1992 states and 3308 transitions. [2023-11-29 02:31:17,399 INFO L78 Accepts]: Start accepts. Automaton has 1992 states and 3308 transitions. Word has length 352 [2023-11-29 02:31:17,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:17,400 INFO L495 AbstractCegarLoop]: Abstraction has 1992 states and 3308 transitions. [2023-11-29 02:31:17,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 3 states have internal predecessors, (352), 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) [2023-11-29 02:31:17,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1992 states and 3308 transitions. [2023-11-29 02:31:17,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 02:31:17,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:17,402 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:17,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:31:17,403 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:17,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1471160650, now seen corresponding path program 1 times [2023-11-29 02:31:17,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:17,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532799876] [2023-11-29 02:31:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:17,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:20,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:20,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:20,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532799876] [2023-11-29 02:31:20,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532799876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:20,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:20,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:31:20,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067433810] [2023-11-29 02:31:20,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:20,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:31:20,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:20,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:31:20,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:31:20,196 INFO L87 Difference]: Start difference. First operand 1992 states and 3308 transitions. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 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) [2023-11-29 02:31:20,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:20,251 INFO L93 Difference]: Finished difference Result 1996 states and 3312 transitions. [2023-11-29 02:31:20,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:31:20,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 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 354 [2023-11-29 02:31:20,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:20,264 INFO L225 Difference]: With dead ends: 1996 [2023-11-29 02:31:20,264 INFO L226 Difference]: Without dead ends: 1994 [2023-11-29 02:31:20,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:31:20,266 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 1 mSDsluCounter, 2719 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4081 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:20,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4081 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:31:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2023-11-29 02:31:20,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1994. [2023-11-29 02:31:20,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1994 states, 1993 states have (on average 1.6608128449573507) internal successors, (3310), 1993 states have internal predecessors, (3310), 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) [2023-11-29 02:31:20,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 3310 transitions. [2023-11-29 02:31:20,329 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 3310 transitions. Word has length 354 [2023-11-29 02:31:20,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:20,330 INFO L495 AbstractCegarLoop]: Abstraction has 1994 states and 3310 transitions. [2023-11-29 02:31:20,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 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) [2023-11-29 02:31:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 3310 transitions. [2023-11-29 02:31:20,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 02:31:20,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:20,336 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:20,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 02:31:20,336 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:20,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:20,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1636933067, now seen corresponding path program 1 times [2023-11-29 02:31:20,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:20,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986231279] [2023-11-29 02:31:20,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:20,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:20,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:20,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:20,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986231279] [2023-11-29 02:31:20,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986231279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:20,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:20,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:31:20,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111829280] [2023-11-29 02:31:20,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:20,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:31:20,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:20,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:31:20,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:31:20,968 INFO L87 Difference]: Start difference. First operand 1994 states and 3310 transitions. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 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) [2023-11-29 02:31:21,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:21,018 INFO L93 Difference]: Finished difference Result 3137 states and 5206 transitions. [2023-11-29 02:31:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:31:21,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 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 355 [2023-11-29 02:31:21,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:21,030 INFO L225 Difference]: With dead ends: 3137 [2023-11-29 02:31:21,030 INFO L226 Difference]: Without dead ends: 1997 [2023-11-29 02:31:21,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:31:21,034 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 1 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4079 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:21,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4079 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:31:21,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2023-11-29 02:31:21,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1996. [2023-11-29 02:31:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1996 states, 1995 states have (on average 1.6601503759398497) internal successors, (3312), 1995 states have internal predecessors, (3312), 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) [2023-11-29 02:31:21,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 3312 transitions. [2023-11-29 02:31:21,081 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 3312 transitions. Word has length 355 [2023-11-29 02:31:21,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:21,082 INFO L495 AbstractCegarLoop]: Abstraction has 1996 states and 3312 transitions. [2023-11-29 02:31:21,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 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) [2023-11-29 02:31:21,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 3312 transitions. [2023-11-29 02:31:21,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 02:31:21,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:21,086 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:21,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 02:31:21,087 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:21,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:21,087 INFO L85 PathProgramCache]: Analyzing trace with hash 584252100, now seen corresponding path program 1 times [2023-11-29 02:31:21,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:21,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125496236] [2023-11-29 02:31:21,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:21,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:23,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:23,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:23,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125496236] [2023-11-29 02:31:23,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125496236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:23,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:23,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:31:23,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079167316] [2023-11-29 02:31:23,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:23,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:31:23,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:23,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:31:23,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:31:23,485 INFO L87 Difference]: Start difference. First operand 1996 states and 3312 transitions. Second operand has 8 states, 8 states have (on average 44.5) internal successors, (356), 7 states have internal predecessors, (356), 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) [2023-11-29 02:31:24,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:24,022 INFO L93 Difference]: Finished difference Result 5414 states and 8982 transitions. [2023-11-29 02:31:24,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:31:24,023 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.5) internal successors, (356), 7 states have internal predecessors, (356), 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 356 [2023-11-29 02:31:24,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:24,040 INFO L225 Difference]: With dead ends: 5414 [2023-11-29 02:31:24,040 INFO L226 Difference]: Without dead ends: 4272 [2023-11-29 02:31:24,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:31:24,043 INFO L413 NwaCegarLoop]: 2157 mSDtfsCounter, 12142 mSDsluCounter, 8339 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12142 SdHoareTripleChecker+Valid, 10496 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:24,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12142 Valid, 10496 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:31:24,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2023-11-29 02:31:24,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 1999. [2023-11-29 02:31:24,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1998 states have (on average 1.6596596596596596) internal successors, (3316), 1998 states have internal predecessors, (3316), 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) [2023-11-29 02:31:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 3316 transitions. [2023-11-29 02:31:24,089 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 3316 transitions. Word has length 356 [2023-11-29 02:31:24,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:24,090 INFO L495 AbstractCegarLoop]: Abstraction has 1999 states and 3316 transitions. [2023-11-29 02:31:24,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.5) internal successors, (356), 7 states have internal predecessors, (356), 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) [2023-11-29 02:31:24,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 3316 transitions. [2023-11-29 02:31:24,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 02:31:24,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:24,093 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:24,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 02:31:24,093 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:24,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:24,093 INFO L85 PathProgramCache]: Analyzing trace with hash 191225090, now seen corresponding path program 1 times [2023-11-29 02:31:24,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:24,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817746426] [2023-11-29 02:31:24,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:24,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:26,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:26,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817746426] [2023-11-29 02:31:26,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817746426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:26,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:26,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:31:26,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495800849] [2023-11-29 02:31:26,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:26,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:31:26,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:26,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:31:26,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:31:26,407 INFO L87 Difference]: Start difference. First operand 1999 states and 3316 transitions. Second operand has 7 states, 7 states have (on average 50.857142857142854) internal successors, (356), 6 states have internal predecessors, (356), 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) [2023-11-29 02:31:27,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:27,167 INFO L93 Difference]: Finished difference Result 4082 states and 6757 transitions. [2023-11-29 02:31:27,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:31:27,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.857142857142854) internal successors, (356), 6 states have internal predecessors, (356), 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 356 [2023-11-29 02:31:27,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:27,182 INFO L225 Difference]: With dead ends: 4082 [2023-11-29 02:31:27,182 INFO L226 Difference]: Without dead ends: 2788 [2023-11-29 02:31:27,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:31:27,185 INFO L413 NwaCegarLoop]: 1336 mSDtfsCounter, 3908 mSDsluCounter, 5199 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3908 SdHoareTripleChecker+Valid, 6535 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:27,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3908 Valid, 6535 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:31:27,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2788 states. [2023-11-29 02:31:27,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2788 to 2001. [2023-11-29 02:31:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 2000 states have (on average 1.659) internal successors, (3318), 2000 states have internal predecessors, (3318), 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) [2023-11-29 02:31:27,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 3318 transitions. [2023-11-29 02:31:27,234 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 3318 transitions. Word has length 356 [2023-11-29 02:31:27,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:27,235 INFO L495 AbstractCegarLoop]: Abstraction has 2001 states and 3318 transitions. [2023-11-29 02:31:27,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.857142857142854) internal successors, (356), 6 states have internal predecessors, (356), 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) [2023-11-29 02:31:27,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 3318 transitions. [2023-11-29 02:31:27,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 02:31:27,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:27,239 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:27,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 02:31:27,239 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:27,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:27,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1456137852, now seen corresponding path program 1 times [2023-11-29 02:31:27,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:27,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155517784] [2023-11-29 02:31:27,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:27,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:30,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:30,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:30,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155517784] [2023-11-29 02:31:30,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155517784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:30,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:30,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:31:30,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911225777] [2023-11-29 02:31:30,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:30,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:31:30,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:30,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:31:30,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:31:30,530 INFO L87 Difference]: Start difference. First operand 2001 states and 3318 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-11-29 02:31:30,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:30,608 INFO L93 Difference]: Finished difference Result 3227 states and 5345 transitions. [2023-11-29 02:31:30,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:31:30,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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 356 [2023-11-29 02:31:30,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:30,620 INFO L225 Difference]: With dead ends: 3227 [2023-11-29 02:31:30,620 INFO L226 Difference]: Without dead ends: 2001 [2023-11-29 02:31:30,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:31:30,623 INFO L413 NwaCegarLoop]: 2037 mSDtfsCounter, 2418 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2418 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:30,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2418 Valid, 2897 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:31:30,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2023-11-29 02:31:30,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 2001. [2023-11-29 02:31:30,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 2000 states have (on average 1.658) internal successors, (3316), 2000 states have internal predecessors, (3316), 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) [2023-11-29 02:31:30,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 3316 transitions. [2023-11-29 02:31:30,669 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 3316 transitions. Word has length 356 [2023-11-29 02:31:30,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:30,669 INFO L495 AbstractCegarLoop]: Abstraction has 2001 states and 3316 transitions. [2023-11-29 02:31:30,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-11-29 02:31:30,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 3316 transitions. [2023-11-29 02:31:30,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 02:31:30,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:30,674 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:30,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 02:31:30,674 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:30,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:30,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1062228305, now seen corresponding path program 1 times [2023-11-29 02:31:30,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:30,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495402734] [2023-11-29 02:31:30,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:30,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:33,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:33,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:33,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495402734] [2023-11-29 02:31:33,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495402734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:33,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:33,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:31:33,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369959565] [2023-11-29 02:31:33,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:33,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:31:33,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:33,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:31:33,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:31:33,290 INFO L87 Difference]: Start difference. First operand 2001 states and 3316 transitions. Second operand has 7 states, 7 states have (on average 51.0) internal successors, (357), 6 states have internal predecessors, (357), 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) [2023-11-29 02:31:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:34,303 INFO L93 Difference]: Finished difference Result 3232 states and 5349 transitions. [2023-11-29 02:31:34,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:31:34,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.0) internal successors, (357), 6 states have internal predecessors, (357), 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 357 [2023-11-29 02:31:34,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:34,308 INFO L225 Difference]: With dead ends: 3232 [2023-11-29 02:31:34,309 INFO L226 Difference]: Without dead ends: 2009 [2023-11-29 02:31:34,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:31:34,311 INFO L413 NwaCegarLoop]: 1689 mSDtfsCounter, 2509 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2509 SdHoareTripleChecker+Valid, 5796 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:34,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2509 Valid, 5796 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:31:34,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2023-11-29 02:31:34,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 2007. [2023-11-29 02:31:34,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 2006 states have (on average 1.6560319042871385) internal successors, (3322), 2006 states have internal predecessors, (3322), 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) [2023-11-29 02:31:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 3322 transitions. [2023-11-29 02:31:34,356 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 3322 transitions. Word has length 357 [2023-11-29 02:31:34,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:34,357 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 3322 transitions. [2023-11-29 02:31:34,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.0) internal successors, (357), 6 states have internal predecessors, (357), 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) [2023-11-29 02:31:34,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 3322 transitions. [2023-11-29 02:31:34,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 02:31:34,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:34,361 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:34,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 02:31:34,362 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:34,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:34,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1546559153, now seen corresponding path program 1 times [2023-11-29 02:31:34,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:34,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13619610] [2023-11-29 02:31:34,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:34,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:36,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:36,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:36,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13619610] [2023-11-29 02:31:36,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13619610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:36,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:36,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:31:36,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298774659] [2023-11-29 02:31:36,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:36,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:31:36,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:36,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:31:36,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:31:36,619 INFO L87 Difference]: Start difference. First operand 2007 states and 3322 transitions. Second operand has 8 states, 8 states have (on average 44.625) internal successors, (357), 7 states have internal predecessors, (357), 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) [2023-11-29 02:31:36,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:36,866 INFO L93 Difference]: Finished difference Result 7233 states and 11984 transitions. [2023-11-29 02:31:36,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:31:36,867 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.625) internal successors, (357), 7 states have internal predecessors, (357), 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 357 [2023-11-29 02:31:36,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:36,874 INFO L225 Difference]: With dead ends: 7233 [2023-11-29 02:31:36,874 INFO L226 Difference]: Without dead ends: 5416 [2023-11-29 02:31:36,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:31:36,878 INFO L413 NwaCegarLoop]: 2035 mSDtfsCounter, 6034 mSDsluCounter, 9186 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6034 SdHoareTripleChecker+Valid, 11221 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:36,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6034 Valid, 11221 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:31:36,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5416 states. [2023-11-29 02:31:36,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5416 to 3465. [2023-11-29 02:31:36,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 3464 states have (on average 1.6581986143187066) internal successors, (5744), 3464 states have internal predecessors, (5744), 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) [2023-11-29 02:31:36,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 5744 transitions. [2023-11-29 02:31:36,933 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 5744 transitions. Word has length 357 [2023-11-29 02:31:36,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:36,934 INFO L495 AbstractCegarLoop]: Abstraction has 3465 states and 5744 transitions. [2023-11-29 02:31:36,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.625) internal successors, (357), 7 states have internal predecessors, (357), 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) [2023-11-29 02:31:36,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 5744 transitions. [2023-11-29 02:31:36,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-11-29 02:31:36,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:36,938 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:36,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 02:31:36,938 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:36,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:36,939 INFO L85 PathProgramCache]: Analyzing trace with hash 469254092, now seen corresponding path program 1 times [2023-11-29 02:31:36,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:36,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992113234] [2023-11-29 02:31:36,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:36,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:40,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:40,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:40,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992113234] [2023-11-29 02:31:40,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992113234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:40,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:40,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:31:40,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819462996] [2023-11-29 02:31:40,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:40,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:31:40,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:40,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:31:40,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:31:40,024 INFO L87 Difference]: Start difference. First operand 3465 states and 5744 transitions. Second operand has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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) [2023-11-29 02:31:40,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:40,133 INFO L93 Difference]: Finished difference Result 5399 states and 8944 transitions. [2023-11-29 02:31:40,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:31:40,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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 358 [2023-11-29 02:31:40,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:40,138 INFO L225 Difference]: With dead ends: 5399 [2023-11-29 02:31:40,138 INFO L226 Difference]: Without dead ends: 3465 [2023-11-29 02:31:40,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:31:40,141 INFO L413 NwaCegarLoop]: 2067 mSDtfsCounter, 5050 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5050 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:40,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5050 Valid, 3685 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:31:40,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2023-11-29 02:31:40,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3465. [2023-11-29 02:31:40,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 3464 states have (on average 1.657621247113164) internal successors, (5742), 3464 states have internal predecessors, (5742), 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) [2023-11-29 02:31:40,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 5742 transitions. [2023-11-29 02:31:40,199 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 5742 transitions. Word has length 358 [2023-11-29 02:31:40,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:40,199 INFO L495 AbstractCegarLoop]: Abstraction has 3465 states and 5742 transitions. [2023-11-29 02:31:40,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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) [2023-11-29 02:31:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 5742 transitions. [2023-11-29 02:31:40,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2023-11-29 02:31:40,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:40,205 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:40,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 02:31:40,206 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:40,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:40,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1557315223, now seen corresponding path program 1 times [2023-11-29 02:31:40,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:40,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740005468] [2023-11-29 02:31:40,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:40,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:43,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:43,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740005468] [2023-11-29 02:31:43,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740005468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:43,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:43,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:31:43,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921942289] [2023-11-29 02:31:43,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:43,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:31:43,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:43,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:31:43,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:31:43,329 INFO L87 Difference]: Start difference. First operand 3465 states and 5742 transitions. Second operand has 9 states, 9 states have (on average 39.888888888888886) internal successors, (359), 8 states have internal predecessors, (359), 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) [2023-11-29 02:31:44,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:44,132 INFO L93 Difference]: Finished difference Result 9080 states and 15049 transitions. [2023-11-29 02:31:44,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:31:44,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 39.888888888888886) internal successors, (359), 8 states have internal predecessors, (359), 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 359 [2023-11-29 02:31:44,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:44,145 INFO L225 Difference]: With dead ends: 9080 [2023-11-29 02:31:44,146 INFO L226 Difference]: Without dead ends: 7205 [2023-11-29 02:31:44,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:31:44,150 INFO L413 NwaCegarLoop]: 3448 mSDtfsCounter, 9778 mSDsluCounter, 12527 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9778 SdHoareTripleChecker+Valid, 15975 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:44,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9778 Valid, 15975 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:31:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7205 states. [2023-11-29 02:31:44,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7205 to 3468. [2023-11-29 02:31:44,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3468 states, 3467 states have (on average 1.657340640323046) internal successors, (5746), 3467 states have internal predecessors, (5746), 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) [2023-11-29 02:31:44,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 5746 transitions. [2023-11-29 02:31:44,227 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 5746 transitions. Word has length 359 [2023-11-29 02:31:44,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:44,228 INFO L495 AbstractCegarLoop]: Abstraction has 3468 states and 5746 transitions. [2023-11-29 02:31:44,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 39.888888888888886) internal successors, (359), 8 states have internal predecessors, (359), 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) [2023-11-29 02:31:44,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 5746 transitions. [2023-11-29 02:31:44,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2023-11-29 02:31:44,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:44,234 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:44,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 02:31:44,234 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:44,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:44,235 INFO L85 PathProgramCache]: Analyzing trace with hash -962644711, now seen corresponding path program 1 times [2023-11-29 02:31:44,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:44,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326501796] [2023-11-29 02:31:44,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:44,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:48,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:48,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:48,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326501796] [2023-11-29 02:31:48,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326501796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:48,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:48,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 02:31:48,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933105028] [2023-11-29 02:31:48,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:48,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:31:48,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:48,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:31:48,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:31:48,652 INFO L87 Difference]: Start difference. First operand 3468 states and 5746 transitions. Second operand has 10 states, 10 states have (on average 35.9) internal successors, (359), 9 states have internal predecessors, (359), 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) [2023-11-29 02:31:49,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:49,290 INFO L93 Difference]: Finished difference Result 15280 states and 25254 transitions. [2023-11-29 02:31:49,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:31:49,291 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 35.9) internal successors, (359), 9 states have internal predecessors, (359), 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 359 [2023-11-29 02:31:49,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:49,304 INFO L225 Difference]: With dead ends: 15280 [2023-11-29 02:31:49,305 INFO L226 Difference]: Without dead ends: 9864 [2023-11-29 02:31:49,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:31:49,310 INFO L413 NwaCegarLoop]: 1351 mSDtfsCounter, 4847 mSDsluCounter, 9127 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4847 SdHoareTripleChecker+Valid, 10478 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:49,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4847 Valid, 10478 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:31:49,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9864 states. [2023-11-29 02:31:49,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9864 to 4008. [2023-11-29 02:31:49,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 4007 states have (on average 1.6566009483404043) internal successors, (6638), 4007 states have internal predecessors, (6638), 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) [2023-11-29 02:31:49,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 6638 transitions. [2023-11-29 02:31:49,375 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 6638 transitions. Word has length 359 [2023-11-29 02:31:49,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:49,375 INFO L495 AbstractCegarLoop]: Abstraction has 4008 states and 6638 transitions. [2023-11-29 02:31:49,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.9) internal successors, (359), 9 states have internal predecessors, (359), 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) [2023-11-29 02:31:49,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 6638 transitions. [2023-11-29 02:31:49,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2023-11-29 02:31:49,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:49,379 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:49,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 02:31:49,379 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:49,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:49,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1073808886, now seen corresponding path program 1 times [2023-11-29 02:31:49,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:49,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016087228] [2023-11-29 02:31:49,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:49,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:52,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:52,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016087228] [2023-11-29 02:31:52,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016087228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:52,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:52,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:31:52,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089285505] [2023-11-29 02:31:52,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:52,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:31:52,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:52,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:31:52,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:31:52,236 INFO L87 Difference]: Start difference. First operand 4008 states and 6638 transitions. Second operand has 9 states, 9 states have (on average 40.0) internal successors, (360), 8 states have internal predecessors, (360), 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) [2023-11-29 02:31:52,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:52,917 INFO L93 Difference]: Finished difference Result 6220 states and 10294 transitions. [2023-11-29 02:31:52,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:31:52,917 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 40.0) internal successors, (360), 8 states have internal predecessors, (360), 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 360 [2023-11-29 02:31:52,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:52,922 INFO L225 Difference]: With dead ends: 6220 [2023-11-29 02:31:52,922 INFO L226 Difference]: Without dead ends: 4016 [2023-11-29 02:31:52,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:31:52,924 INFO L413 NwaCegarLoop]: 1883 mSDtfsCounter, 6121 mSDsluCounter, 5246 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6121 SdHoareTripleChecker+Valid, 7129 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:52,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6121 Valid, 7129 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:31:52,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2023-11-29 02:31:52,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 4012. [2023-11-29 02:31:52,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4012 states, 4011 states have (on average 1.6559461480927449) internal successors, (6642), 4011 states have internal predecessors, (6642), 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) [2023-11-29 02:31:52,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4012 states to 4012 states and 6642 transitions. [2023-11-29 02:31:52,984 INFO L78 Accepts]: Start accepts. Automaton has 4012 states and 6642 transitions. Word has length 360 [2023-11-29 02:31:52,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:52,984 INFO L495 AbstractCegarLoop]: Abstraction has 4012 states and 6642 transitions. [2023-11-29 02:31:52,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.0) internal successors, (360), 8 states have internal predecessors, (360), 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) [2023-11-29 02:31:52,985 INFO L276 IsEmpty]: Start isEmpty. Operand 4012 states and 6642 transitions. [2023-11-29 02:31:52,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2023-11-29 02:31:52,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:52,991 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:52,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 02:31:52,991 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:52,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:52,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1089327604, now seen corresponding path program 1 times [2023-11-29 02:31:52,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:52,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780772988] [2023-11-29 02:31:52,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:52,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:55,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:55,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:55,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780772988] [2023-11-29 02:31:55,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780772988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:55,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:55,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:31:55,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553413337] [2023-11-29 02:31:55,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:55,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:31:55,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:55,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:31:55,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:31:55,037 INFO L87 Difference]: Start difference. First operand 4012 states and 6642 transitions. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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) [2023-11-29 02:31:55,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:55,092 INFO L93 Difference]: Finished difference Result 8433 states and 13946 transitions. [2023-11-29 02:31:55,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:31:55,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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 360 [2023-11-29 02:31:55,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:55,099 INFO L225 Difference]: With dead ends: 8433 [2023-11-29 02:31:55,099 INFO L226 Difference]: Without dead ends: 6224 [2023-11-29 02:31:55,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:31:55,103 INFO L413 NwaCegarLoop]: 2089 mSDtfsCounter, 1323 mSDsluCounter, 3441 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 5530 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:55,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 5530 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:31:55,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6224 states. [2023-11-29 02:31:55,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6224 to 4018. [2023-11-29 02:31:55,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4018 states, 4017 states have (on average 1.6549663928304705) internal successors, (6648), 4017 states have internal predecessors, (6648), 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) [2023-11-29 02:31:55,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 6648 transitions. [2023-11-29 02:31:55,157 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 6648 transitions. Word has length 360 [2023-11-29 02:31:55,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:55,158 INFO L495 AbstractCegarLoop]: Abstraction has 4018 states and 6648 transitions. [2023-11-29 02:31:55,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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) [2023-11-29 02:31:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 6648 transitions. [2023-11-29 02:31:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2023-11-29 02:31:55,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:55,164 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:55,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 02:31:55,164 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:55,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:55,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1524133187, now seen corresponding path program 1 times [2023-11-29 02:31:55,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:55,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917608525] [2023-11-29 02:31:55,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:55,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:31:57,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:31:57,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:31:57,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917608525] [2023-11-29 02:31:57,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917608525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:31:57,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:31:57,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:31:57,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867255885] [2023-11-29 02:31:57,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:31:57,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:31:57,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:31:57,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:31:57,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:31:57,095 INFO L87 Difference]: Start difference. First operand 4018 states and 6648 transitions. Second operand has 5 states, 5 states have (on average 72.2) internal successors, (361), 4 states have internal predecessors, (361), 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) [2023-11-29 02:31:57,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:31:57,402 INFO L93 Difference]: Finished difference Result 6231 states and 10303 transitions. [2023-11-29 02:31:57,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:31:57,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 4 states have internal predecessors, (361), 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 361 [2023-11-29 02:31:57,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:31:57,407 INFO L225 Difference]: With dead ends: 6231 [2023-11-29 02:31:57,407 INFO L226 Difference]: Without dead ends: 4022 [2023-11-29 02:31:57,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:31:57,410 INFO L413 NwaCegarLoop]: 1242 mSDtfsCounter, 1057 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 3724 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:31:57,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 3724 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:31:57,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4022 states. [2023-11-29 02:31:57,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4022 to 4020. [2023-11-29 02:31:57,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 4019 states have (on average 1.6546404578253298) internal successors, (6650), 4019 states have internal predecessors, (6650), 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) [2023-11-29 02:31:57,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 6650 transitions. [2023-11-29 02:31:57,469 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 6650 transitions. Word has length 361 [2023-11-29 02:31:57,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:31:57,470 INFO L495 AbstractCegarLoop]: Abstraction has 4020 states and 6650 transitions. [2023-11-29 02:31:57,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 4 states have internal predecessors, (361), 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) [2023-11-29 02:31:57,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 6650 transitions. [2023-11-29 02:31:57,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2023-11-29 02:31:57,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:31:57,476 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:31:57,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 02:31:57,477 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:31:57,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:31:57,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1171044805, now seen corresponding path program 1 times [2023-11-29 02:31:57,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:31:57,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504233607] [2023-11-29 02:31:57,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:31:57,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:31:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:00,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:00,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:00,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504233607] [2023-11-29 02:32:00,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504233607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:00,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:00,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:32:00,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415791920] [2023-11-29 02:32:00,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:00,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:32:00,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:00,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:32:00,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:00,452 INFO L87 Difference]: Start difference. First operand 4020 states and 6650 transitions. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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) [2023-11-29 02:32:00,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:00,499 INFO L93 Difference]: Finished difference Result 6206 states and 10262 transitions. [2023-11-29 02:32:00,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:32:00,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 361 [2023-11-29 02:32:00,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:00,504 INFO L225 Difference]: With dead ends: 6206 [2023-11-29 02:32:00,504 INFO L226 Difference]: Without dead ends: 4020 [2023-11-29 02:32:00,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:32:00,507 INFO L413 NwaCegarLoop]: 2129 mSDtfsCounter, 2648 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2648 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:00,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2648 Valid, 3740 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:32:00,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4020 states. [2023-11-29 02:32:00,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4020 to 4020. [2023-11-29 02:32:00,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 4019 states have (on average 1.6541428215974123) internal successors, (6648), 4019 states have internal predecessors, (6648), 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) [2023-11-29 02:32:00,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 6648 transitions. [2023-11-29 02:32:00,565 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 6648 transitions. Word has length 361 [2023-11-29 02:32:00,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:00,565 INFO L495 AbstractCegarLoop]: Abstraction has 4020 states and 6648 transitions. [2023-11-29 02:32:00,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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) [2023-11-29 02:32:00,565 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 6648 transitions. [2023-11-29 02:32:00,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2023-11-29 02:32:00,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:00,569 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:00,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 02:32:00,569 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:00,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:00,569 INFO L85 PathProgramCache]: Analyzing trace with hash -171626288, now seen corresponding path program 1 times [2023-11-29 02:32:00,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:00,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242563144] [2023-11-29 02:32:00,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:00,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:02,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:02,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242563144] [2023-11-29 02:32:02,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242563144] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:02,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:02,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:32:02,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814491719] [2023-11-29 02:32:02,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:02,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:32:02,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:02,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:32:02,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:32:02,344 INFO L87 Difference]: Start difference. First operand 4020 states and 6648 transitions. Second operand has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 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) [2023-11-29 02:32:03,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:03,413 INFO L93 Difference]: Finished difference Result 6211 states and 10266 transitions. [2023-11-29 02:32:03,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:32:03,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 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 362 [2023-11-29 02:32:03,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:03,417 INFO L225 Difference]: With dead ends: 6211 [2023-11-29 02:32:03,417 INFO L226 Difference]: Without dead ends: 4028 [2023-11-29 02:32:03,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:32:03,419 INFO L413 NwaCegarLoop]: 1762 mSDtfsCounter, 3430 mSDsluCounter, 4885 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3430 SdHoareTripleChecker+Valid, 6647 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:03,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3430 Valid, 6647 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:32:03,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4028 states. [2023-11-29 02:32:03,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4028 to 4024. [2023-11-29 02:32:03,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4024 states, 4023 states have (on average 1.6534924185930897) internal successors, (6652), 4023 states have internal predecessors, (6652), 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) [2023-11-29 02:32:03,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4024 states to 4024 states and 6652 transitions. [2023-11-29 02:32:03,469 INFO L78 Accepts]: Start accepts. Automaton has 4024 states and 6652 transitions. Word has length 362 [2023-11-29 02:32:03,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:03,469 INFO L495 AbstractCegarLoop]: Abstraction has 4024 states and 6652 transitions. [2023-11-29 02:32:03,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 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) [2023-11-29 02:32:03,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states and 6652 transitions. [2023-11-29 02:32:03,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2023-11-29 02:32:03,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:03,473 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:03,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 02:32:03,473 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:03,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:03,474 INFO L85 PathProgramCache]: Analyzing trace with hash -148994034, now seen corresponding path program 1 times [2023-11-29 02:32:03,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:03,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626641113] [2023-11-29 02:32:03,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:03,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:06,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:06,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:06,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626641113] [2023-11-29 02:32:06,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626641113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:06,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:06,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:32:06,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368969775] [2023-11-29 02:32:06,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:06,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:32:06,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:06,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:32:06,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:06,808 INFO L87 Difference]: Start difference. First operand 4024 states and 6652 transitions. Second operand has 4 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 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) [2023-11-29 02:32:07,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:07,023 INFO L93 Difference]: Finished difference Result 6206 states and 10255 transitions. [2023-11-29 02:32:07,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:32:07,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 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 362 [2023-11-29 02:32:07,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:07,026 INFO L225 Difference]: With dead ends: 6206 [2023-11-29 02:32:07,026 INFO L226 Difference]: Without dead ends: 4024 [2023-11-29 02:32:07,028 INFO L412 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 [2023-11-29 02:32:07,028 INFO L413 NwaCegarLoop]: 1211 mSDtfsCounter, 1094 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:07,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 2420 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:32:07,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2023-11-29 02:32:07,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 4024. [2023-11-29 02:32:07,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4024 states, 4023 states have (on average 1.652995277156351) internal successors, (6650), 4023 states have internal predecessors, (6650), 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) [2023-11-29 02:32:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4024 states to 4024 states and 6650 transitions. [2023-11-29 02:32:07,065 INFO L78 Accepts]: Start accepts. Automaton has 4024 states and 6650 transitions. Word has length 362 [2023-11-29 02:32:07,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:07,065 INFO L495 AbstractCegarLoop]: Abstraction has 4024 states and 6650 transitions. [2023-11-29 02:32:07,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 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) [2023-11-29 02:32:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states and 6650 transitions. [2023-11-29 02:32:07,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-11-29 02:32:07,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:07,069 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:07,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 02:32:07,069 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:07,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:07,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1655385307, now seen corresponding path program 1 times [2023-11-29 02:32:07,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:07,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893020876] [2023-11-29 02:32:07,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:07,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:10,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:10,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:10,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893020876] [2023-11-29 02:32:10,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893020876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:10,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:10,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:32:10,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740927279] [2023-11-29 02:32:10,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:10,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:32:10,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:32:10,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:32:10,145 INFO L87 Difference]: Start difference. First operand 4024 states and 6650 transitions. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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) [2023-11-29 02:32:10,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:10,688 INFO L93 Difference]: Finished difference Result 12932 states and 21301 transitions. [2023-11-29 02:32:10,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:32:10,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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 363 [2023-11-29 02:32:10,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:10,695 INFO L225 Difference]: With dead ends: 12932 [2023-11-29 02:32:10,695 INFO L226 Difference]: Without dead ends: 10694 [2023-11-29 02:32:10,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:32:10,699 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 1720 mSDsluCounter, 5329 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 6741 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:10,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 6741 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:32:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10694 states. [2023-11-29 02:32:10,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10694 to 9215. [2023-11-29 02:32:10,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9215 states, 9214 states have (on average 1.6500976774473628) internal successors, (15204), 9214 states have internal predecessors, (15204), 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) [2023-11-29 02:32:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9215 states to 9215 states and 15204 transitions. [2023-11-29 02:32:10,786 INFO L78 Accepts]: Start accepts. Automaton has 9215 states and 15204 transitions. Word has length 363 [2023-11-29 02:32:10,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:10,786 INFO L495 AbstractCegarLoop]: Abstraction has 9215 states and 15204 transitions. [2023-11-29 02:32:10,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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) [2023-11-29 02:32:10,786 INFO L276 IsEmpty]: Start isEmpty. Operand 9215 states and 15204 transitions. [2023-11-29 02:32:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-11-29 02:32:10,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:10,792 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:10,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 02:32:10,792 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:10,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:10,793 INFO L85 PathProgramCache]: Analyzing trace with hash 939569788, now seen corresponding path program 1 times [2023-11-29 02:32:10,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:10,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079121146] [2023-11-29 02:32:10,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:10,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:12,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:12,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079121146] [2023-11-29 02:32:12,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079121146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:12,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:12,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:32:12,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537184418] [2023-11-29 02:32:12,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:12,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:32:12,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:12,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:32:12,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:32:12,578 INFO L87 Difference]: Start difference. First operand 9215 states and 15204 transitions. Second operand has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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) [2023-11-29 02:32:12,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:12,868 INFO L93 Difference]: Finished difference Result 15155 states and 24945 transitions. [2023-11-29 02:32:12,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:32:12,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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 363 [2023-11-29 02:32:12,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:12,875 INFO L225 Difference]: With dead ends: 15155 [2023-11-29 02:32:12,875 INFO L226 Difference]: Without dead ends: 8917 [2023-11-29 02:32:12,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:32:12,881 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1315 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 4791 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:12,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 4791 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:32:12,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8917 states. [2023-11-29 02:32:12,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8917 to 7106. [2023-11-29 02:32:12,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7106 states, 7105 states have (on average 1.652076002814919) internal successors, (11738), 7105 states have internal predecessors, (11738), 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) [2023-11-29 02:32:12,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7106 states to 7106 states and 11738 transitions. [2023-11-29 02:32:12,945 INFO L78 Accepts]: Start accepts. Automaton has 7106 states and 11738 transitions. Word has length 363 [2023-11-29 02:32:12,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:12,946 INFO L495 AbstractCegarLoop]: Abstraction has 7106 states and 11738 transitions. [2023-11-29 02:32:12,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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) [2023-11-29 02:32:12,946 INFO L276 IsEmpty]: Start isEmpty. Operand 7106 states and 11738 transitions. [2023-11-29 02:32:12,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2023-11-29 02:32:12,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:12,951 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:12,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 02:32:12,951 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:12,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:12,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1083168938, now seen corresponding path program 1 times [2023-11-29 02:32:12,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:12,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396492204] [2023-11-29 02:32:12,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:12,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:16,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:16,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:16,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396492204] [2023-11-29 02:32:16,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396492204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:16,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:16,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:32:16,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685360441] [2023-11-29 02:32:16,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:16,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:32:16,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:16,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:32:16,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:32:16,305 INFO L87 Difference]: Start difference. First operand 7106 states and 11738 transitions. Second operand has 9 states, 9 states have (on average 40.44444444444444) internal successors, (364), 8 states have internal predecessors, (364), 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) [2023-11-29 02:32:19,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:19,473 INFO L93 Difference]: Finished difference Result 28261 states and 46563 transitions. [2023-11-29 02:32:19,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:32:19,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 40.44444444444444) internal successors, (364), 8 states have internal predecessors, (364), 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 364 [2023-11-29 02:32:19,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:19,488 INFO L225 Difference]: With dead ends: 28261 [2023-11-29 02:32:19,488 INFO L226 Difference]: Without dead ends: 24491 [2023-11-29 02:32:19,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:32:19,495 INFO L413 NwaCegarLoop]: 2011 mSDtfsCounter, 6106 mSDsluCounter, 11814 mSDsCounter, 0 mSdLazyCounter, 4388 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6106 SdHoareTripleChecker+Valid, 13825 SdHoareTripleChecker+Invalid, 4446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 4388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:19,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6106 Valid, 13825 Invalid, 4446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 4388 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 02:32:19,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24491 states. [2023-11-29 02:32:19,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24491 to 15090. [2023-11-29 02:32:19,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15090 states, 15089 states have (on average 1.6494797534627874) internal successors, (24889), 15089 states have internal predecessors, (24889), 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) [2023-11-29 02:32:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15090 states to 15090 states and 24889 transitions. [2023-11-29 02:32:19,666 INFO L78 Accepts]: Start accepts. Automaton has 15090 states and 24889 transitions. Word has length 364 [2023-11-29 02:32:19,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:19,667 INFO L495 AbstractCegarLoop]: Abstraction has 15090 states and 24889 transitions. [2023-11-29 02:32:19,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.44444444444444) internal successors, (364), 8 states have internal predecessors, (364), 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) [2023-11-29 02:32:19,667 INFO L276 IsEmpty]: Start isEmpty. Operand 15090 states and 24889 transitions. [2023-11-29 02:32:19,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2023-11-29 02:32:19,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:19,676 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:19,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 02:32:19,676 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:19,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:19,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1561226774, now seen corresponding path program 1 times [2023-11-29 02:32:19,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:19,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795455399] [2023-11-29 02:32:19,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:19,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:22,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:22,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795455399] [2023-11-29 02:32:22,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795455399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:22,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:22,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:32:22,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915203889] [2023-11-29 02:32:22,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:22,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:32:22,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:22,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:32:22,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:32:22,503 INFO L87 Difference]: Start difference. First operand 15090 states and 24889 transitions. Second operand has 8 states, 8 states have (on average 45.5) internal successors, (364), 7 states have internal predecessors, (364), 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) [2023-11-29 02:32:24,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:24,667 INFO L93 Difference]: Finished difference Result 30621 states and 50480 transitions. [2023-11-29 02:32:24,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:32:24,668 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.5) internal successors, (364), 7 states have internal predecessors, (364), 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 364 [2023-11-29 02:32:24,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:24,685 INFO L225 Difference]: With dead ends: 30621 [2023-11-29 02:32:24,685 INFO L226 Difference]: Without dead ends: 22391 [2023-11-29 02:32:24,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:32:24,694 INFO L413 NwaCegarLoop]: 1503 mSDtfsCounter, 5210 mSDsluCounter, 6864 mSDsCounter, 0 mSdLazyCounter, 3284 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5210 SdHoareTripleChecker+Valid, 8367 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:24,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5210 Valid, 8367 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3284 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 02:32:24,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22391 states. [2023-11-29 02:32:24,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22391 to 15104. [2023-11-29 02:32:24,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15104 states, 15103 states have (on average 1.649142554459379) internal successors, (24907), 15103 states have internal predecessors, (24907), 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) [2023-11-29 02:32:24,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15104 states to 15104 states and 24907 transitions. [2023-11-29 02:32:24,855 INFO L78 Accepts]: Start accepts. Automaton has 15104 states and 24907 transitions. Word has length 364 [2023-11-29 02:32:24,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:24,855 INFO L495 AbstractCegarLoop]: Abstraction has 15104 states and 24907 transitions. [2023-11-29 02:32:24,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.5) internal successors, (364), 7 states have internal predecessors, (364), 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) [2023-11-29 02:32:24,855 INFO L276 IsEmpty]: Start isEmpty. Operand 15104 states and 24907 transitions. [2023-11-29 02:32:24,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2023-11-29 02:32:24,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:24,868 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:24,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 02:32:24,868 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:24,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:24,869 INFO L85 PathProgramCache]: Analyzing trace with hash -685207768, now seen corresponding path program 1 times [2023-11-29 02:32:24,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:24,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42876785] [2023-11-29 02:32:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:24,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:28,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:28,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:28,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42876785] [2023-11-29 02:32:28,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42876785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:28,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:28,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:32:28,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190164577] [2023-11-29 02:32:28,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:28,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:32:28,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:28,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:32:28,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:32:28,504 INFO L87 Difference]: Start difference. First operand 15104 states and 24907 transitions. Second operand has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 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) [2023-11-29 02:32:28,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:28,807 INFO L93 Difference]: Finished difference Result 47632 states and 78565 transitions. [2023-11-29 02:32:28,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:32:28,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 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 364 [2023-11-29 02:32:28,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:28,833 INFO L225 Difference]: With dead ends: 47632 [2023-11-29 02:32:28,834 INFO L226 Difference]: Without dead ends: 38884 [2023-11-29 02:32:28,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:32:28,841 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 6872 mSDsluCounter, 5094 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6872 SdHoareTripleChecker+Valid, 7056 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:28,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6872 Valid, 7056 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:28,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38884 states. [2023-11-29 02:32:29,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38884 to 25132. [2023-11-29 02:32:29,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25132 states, 25131 states have (on average 1.651466316501532) internal successors, (41503), 25131 states have internal predecessors, (41503), 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) [2023-11-29 02:32:29,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25132 states to 25132 states and 41503 transitions. [2023-11-29 02:32:29,089 INFO L78 Accepts]: Start accepts. Automaton has 25132 states and 41503 transitions. Word has length 364 [2023-11-29 02:32:29,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:29,090 INFO L495 AbstractCegarLoop]: Abstraction has 25132 states and 41503 transitions. [2023-11-29 02:32:29,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 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) [2023-11-29 02:32:29,090 INFO L276 IsEmpty]: Start isEmpty. Operand 25132 states and 41503 transitions. [2023-11-29 02:32:29,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-29 02:32:29,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:29,106 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:29,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 02:32:29,107 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:29,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash 811024239, now seen corresponding path program 1 times [2023-11-29 02:32:29,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:29,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928156323] [2023-11-29 02:32:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:29,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:32,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:32,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928156323] [2023-11-29 02:32:32,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928156323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:32,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:32,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:32:32,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808310908] [2023-11-29 02:32:32,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:32,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:32:32,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:32,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:32:32,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:32:32,738 INFO L87 Difference]: Start difference. First operand 25132 states and 41503 transitions. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 02:32:33,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:33,311 INFO L93 Difference]: Finished difference Result 39773 states and 65594 transitions. [2023-11-29 02:32:33,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:32:33,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 5 states have internal predecessors, (365), 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 365 [2023-11-29 02:32:33,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:33,328 INFO L225 Difference]: With dead ends: 39773 [2023-11-29 02:32:33,328 INFO L226 Difference]: Without dead ends: 26484 [2023-11-29 02:32:33,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:32:33,338 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 2382 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 4969 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:33,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2382 Valid, 4969 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:32:33,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26484 states. [2023-11-29 02:32:33,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26484 to 25138. [2023-11-29 02:32:33,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25138 states, 25137 states have (on average 1.6513108167243506) internal successors, (41509), 25137 states have internal predecessors, (41509), 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) [2023-11-29 02:32:33,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25138 states to 25138 states and 41509 transitions. [2023-11-29 02:32:33,604 INFO L78 Accepts]: Start accepts. Automaton has 25138 states and 41509 transitions. Word has length 365 [2023-11-29 02:32:33,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:33,605 INFO L495 AbstractCegarLoop]: Abstraction has 25138 states and 41509 transitions. [2023-11-29 02:32:33,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 02:32:33,605 INFO L276 IsEmpty]: Start isEmpty. Operand 25138 states and 41509 transitions. [2023-11-29 02:32:33,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-29 02:32:33,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:33,614 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:33,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 02:32:33,614 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:33,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:33,614 INFO L85 PathProgramCache]: Analyzing trace with hash 393627633, now seen corresponding path program 1 times [2023-11-29 02:32:33,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:33,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499242084] [2023-11-29 02:32:33,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:33,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:35,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:35,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499242084] [2023-11-29 02:32:35,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499242084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:35,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:35,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:32:35,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989668341] [2023-11-29 02:32:35,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:35,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:32:35,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:35,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:32:35,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:32:35,915 INFO L87 Difference]: Start difference. First operand 25138 states and 41509 transitions. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 02:32:36,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:36,632 INFO L93 Difference]: Finished difference Result 51494 states and 85007 transitions. [2023-11-29 02:32:36,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:32:36,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 5 states have internal predecessors, (365), 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 365 [2023-11-29 02:32:36,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:36,655 INFO L225 Difference]: With dead ends: 51494 [2023-11-29 02:32:36,655 INFO L226 Difference]: Without dead ends: 38328 [2023-11-29 02:32:36,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:32:36,667 INFO L413 NwaCegarLoop]: 1894 mSDtfsCounter, 2889 mSDsluCounter, 4984 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2889 SdHoareTripleChecker+Valid, 6878 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:36,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2889 Valid, 6878 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:32:36,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38328 states. [2023-11-29 02:32:36,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38328 to 25194. [2023-11-29 02:32:36,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25194 states, 25193 states have (on average 1.6503393799865043) internal successors, (41577), 25193 states have internal predecessors, (41577), 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) [2023-11-29 02:32:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25194 states to 25194 states and 41577 transitions. [2023-11-29 02:32:36,920 INFO L78 Accepts]: Start accepts. Automaton has 25194 states and 41577 transitions. Word has length 365 [2023-11-29 02:32:36,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:36,921 INFO L495 AbstractCegarLoop]: Abstraction has 25194 states and 41577 transitions. [2023-11-29 02:32:36,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 02:32:36,921 INFO L276 IsEmpty]: Start isEmpty. Operand 25194 states and 41577 transitions. [2023-11-29 02:32:36,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-29 02:32:36,929 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:36,930 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:36,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 02:32:36,930 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:36,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:36,930 INFO L85 PathProgramCache]: Analyzing trace with hash 455667247, now seen corresponding path program 1 times [2023-11-29 02:32:36,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:36,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608572998] [2023-11-29 02:32:36,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:36,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:40,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:40,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:40,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608572998] [2023-11-29 02:32:40,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608572998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:40,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:40,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 02:32:40,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319791436] [2023-11-29 02:32:40,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:40,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:32:40,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:40,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:32:40,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:32:40,867 INFO L87 Difference]: Start difference. First operand 25194 states and 41577 transitions. Second operand has 11 states, 11 states have (on average 33.18181818181818) internal successors, (365), 11 states have internal predecessors, (365), 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) [2023-11-29 02:32:44,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:44,300 INFO L93 Difference]: Finished difference Result 109146 states and 179515 transitions. [2023-11-29 02:32:44,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 02:32:44,301 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 33.18181818181818) internal successors, (365), 11 states have internal predecessors, (365), 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 365 [2023-11-29 02:32:44,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:44,358 INFO L225 Difference]: With dead ends: 109146 [2023-11-29 02:32:44,358 INFO L226 Difference]: Without dead ends: 91320 [2023-11-29 02:32:44,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=327, Invalid=795, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:32:44,382 INFO L413 NwaCegarLoop]: 4034 mSDtfsCounter, 12732 mSDsluCounter, 17146 mSDsCounter, 0 mSdLazyCounter, 3024 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12732 SdHoareTripleChecker+Valid, 21180 SdHoareTripleChecker+Invalid, 3184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 3024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:44,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12732 Valid, 21180 Invalid, 3184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [160 Valid, 3024 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 02:32:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91320 states. [2023-11-29 02:32:44,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91320 to 43973. [2023-11-29 02:32:44,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43973 states, 43972 states have (on average 1.649231329027563) internal successors, (72520), 43972 states have internal predecessors, (72520), 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) [2023-11-29 02:32:44,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43973 states to 43973 states and 72520 transitions. [2023-11-29 02:32:44,896 INFO L78 Accepts]: Start accepts. Automaton has 43973 states and 72520 transitions. Word has length 365 [2023-11-29 02:32:44,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:44,897 INFO L495 AbstractCegarLoop]: Abstraction has 43973 states and 72520 transitions. [2023-11-29 02:32:44,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 33.18181818181818) internal successors, (365), 11 states have internal predecessors, (365), 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) [2023-11-29 02:32:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 43973 states and 72520 transitions. [2023-11-29 02:32:45,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-29 02:32:45,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:45,080 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:45,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 02:32:45,080 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:45,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:45,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1941803283, now seen corresponding path program 1 times [2023-11-29 02:32:45,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:45,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747111230] [2023-11-29 02:32:45,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:45,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:48,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:48,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:48,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747111230] [2023-11-29 02:32:48,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747111230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:48,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:48,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:32:48,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761109532] [2023-11-29 02:32:48,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:48,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:32:48,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:48,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:32:48,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:32:48,893 INFO L87 Difference]: Start difference. First operand 43973 states and 72520 transitions. Second operand has 5 states, 5 states have (on average 73.0) internal successors, (365), 4 states have internal predecessors, (365), 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) [2023-11-29 02:32:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:49,724 INFO L93 Difference]: Finished difference Result 90514 states and 149051 transitions. [2023-11-29 02:32:49,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:32:49,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 4 states have internal predecessors, (365), 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 365 [2023-11-29 02:32:49,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:49,768 INFO L225 Difference]: With dead ends: 90514 [2023-11-29 02:32:49,768 INFO L226 Difference]: Without dead ends: 67298 [2023-11-29 02:32:49,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:32:49,788 INFO L413 NwaCegarLoop]: 1645 mSDtfsCounter, 3121 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3121 SdHoareTripleChecker+Valid, 4396 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:49,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3121 Valid, 4396 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:32:49,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67298 states. [2023-11-29 02:32:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67298 to 44133. [2023-11-29 02:32:50,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44133 states, 44132 states have (on average 1.6474213722468958) internal successors, (72704), 44132 states have internal predecessors, (72704), 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) [2023-11-29 02:32:50,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44133 states to 44133 states and 72704 transitions. [2023-11-29 02:32:50,280 INFO L78 Accepts]: Start accepts. Automaton has 44133 states and 72704 transitions. Word has length 365 [2023-11-29 02:32:50,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:50,280 INFO L495 AbstractCegarLoop]: Abstraction has 44133 states and 72704 transitions. [2023-11-29 02:32:50,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 4 states have internal predecessors, (365), 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) [2023-11-29 02:32:50,281 INFO L276 IsEmpty]: Start isEmpty. Operand 44133 states and 72704 transitions. [2023-11-29 02:32:50,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-29 02:32:50,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:50,296 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:50,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 02:32:50,296 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:50,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:50,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1689127069, now seen corresponding path program 1 times [2023-11-29 02:32:50,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:50,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070791350] [2023-11-29 02:32:50,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:50,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:52,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:52,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070791350] [2023-11-29 02:32:52,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070791350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:52,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:52,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:32:52,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008438742] [2023-11-29 02:32:52,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:52,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:32:52,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:52,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:32:52,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:52,852 INFO L87 Difference]: Start difference. First operand 44133 states and 72704 transitions. Second operand has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2023-11-29 02:32:53,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:53,159 INFO L93 Difference]: Finished difference Result 113172 states and 186421 transitions. [2023-11-29 02:32:53,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:32:53,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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 365 [2023-11-29 02:32:53,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:53,225 INFO L225 Difference]: With dead ends: 113172 [2023-11-29 02:32:53,225 INFO L226 Difference]: Without dead ends: 84828 [2023-11-29 02:32:53,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:32:53,254 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 1321 mSDsluCounter, 2879 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 4410 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:53,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 4410 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:32:53,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84828 states. [2023-11-29 02:32:53,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84828 to 44253. [2023-11-29 02:32:53,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44253 states, 44252 states have (on average 1.6465696465696467) internal successors, (72864), 44252 states have internal predecessors, (72864), 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) [2023-11-29 02:32:53,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44253 states to 44253 states and 72864 transitions. [2023-11-29 02:32:53,758 INFO L78 Accepts]: Start accepts. Automaton has 44253 states and 72864 transitions. Word has length 365 [2023-11-29 02:32:53,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:53,758 INFO L495 AbstractCegarLoop]: Abstraction has 44253 states and 72864 transitions. [2023-11-29 02:32:53,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2023-11-29 02:32:53,758 INFO L276 IsEmpty]: Start isEmpty. Operand 44253 states and 72864 transitions. [2023-11-29 02:32:53,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-29 02:32:53,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:53,773 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:53,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 02:32:53,773 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:32:53,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:53,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1075810974, now seen corresponding path program 1 times [2023-11-29 02:32:53,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:53,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376590234] [2023-11-29 02:32:53,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:53,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:57,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:57,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:57,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376590234] [2023-11-29 02:32:57,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376590234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:57,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:57,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:32:57,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097975338] [2023-11-29 02:32:57,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:57,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:32:57,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:57,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:32:57,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:32:57,498 INFO L87 Difference]: Start difference. First operand 44253 states and 72864 transitions. Second operand has 8 states, 8 states have (on average 45.625) internal successors, (365), 7 states have internal predecessors, (365), 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) [2023-11-29 02:32:59,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:59,340 INFO L93 Difference]: Finished difference Result 139222 states and 229289 transitions. [2023-11-29 02:32:59,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:32:59,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.625) internal successors, (365), 7 states have internal predecessors, (365), 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 365 [2023-11-29 02:32:59,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:59,415 INFO L225 Difference]: With dead ends: 139222 [2023-11-29 02:32:59,415 INFO L226 Difference]: Without dead ends: 103777 [2023-11-29 02:32:59,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:32:59,445 INFO L413 NwaCegarLoop]: 3309 mSDtfsCounter, 5240 mSDsluCounter, 9981 mSDsCounter, 0 mSdLazyCounter, 2798 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5240 SdHoareTripleChecker+Valid, 13290 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:59,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5240 Valid, 13290 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2798 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 02:32:59,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103777 states. [2023-11-29 02:33:00,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103777 to 44253. [2023-11-29 02:33:00,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44253 states, 44252 states have (on average 1.6465696465696467) internal successors, (72864), 44252 states have internal predecessors, (72864), 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) [2023-11-29 02:33:00,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44253 states to 44253 states and 72864 transitions. [2023-11-29 02:33:00,129 INFO L78 Accepts]: Start accepts. Automaton has 44253 states and 72864 transitions. Word has length 365 [2023-11-29 02:33:00,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:00,130 INFO L495 AbstractCegarLoop]: Abstraction has 44253 states and 72864 transitions. [2023-11-29 02:33:00,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.625) internal successors, (365), 7 states have internal predecessors, (365), 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) [2023-11-29 02:33:00,130 INFO L276 IsEmpty]: Start isEmpty. Operand 44253 states and 72864 transitions. [2023-11-29 02:33:00,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-29 02:33:00,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:00,144 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:33:00,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 02:33:00,144 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:33:00,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:00,144 INFO L85 PathProgramCache]: Analyzing trace with hash -377575716, now seen corresponding path program 1 times [2023-11-29 02:33:00,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:33:00,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761360514] [2023-11-29 02:33:00,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:00,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:33:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:04,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:33:04,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:33:04,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761360514] [2023-11-29 02:33:04,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761360514] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:04,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:04,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:33:04,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869595581] [2023-11-29 02:33:04,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:04,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:33:04,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:33:04,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:33:04,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:33:04,255 INFO L87 Difference]: Start difference. First operand 44253 states and 72864 transitions. Second operand has 8 states, 8 states have (on average 45.625) internal successors, (365), 8 states have internal predecessors, (365), 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) [2023-11-29 02:33:06,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:33:06,133 INFO L93 Difference]: Finished difference Result 150700 states and 248303 transitions. [2023-11-29 02:33:06,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:33:06,133 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 45.625) internal successors, (365), 8 states have internal predecessors, (365), 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 365 [2023-11-29 02:33:06,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:33:06,210 INFO L225 Difference]: With dead ends: 150700 [2023-11-29 02:33:06,210 INFO L226 Difference]: Without dead ends: 126989 [2023-11-29 02:33:06,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:33:06,231 INFO L413 NwaCegarLoop]: 1687 mSDtfsCounter, 8104 mSDsluCounter, 6428 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8104 SdHoareTripleChecker+Valid, 8115 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:33:06,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8104 Valid, 8115 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 02:33:06,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126989 states. [2023-11-29 02:33:06,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126989 to 44285. [2023-11-29 02:33:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44285 states, 44284 states have (on average 1.646463734080029) internal successors, (72912), 44284 states have internal predecessors, (72912), 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) [2023-11-29 02:33:06,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44285 states to 44285 states and 72912 transitions. [2023-11-29 02:33:06,855 INFO L78 Accepts]: Start accepts. Automaton has 44285 states and 72912 transitions. Word has length 365 [2023-11-29 02:33:06,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:06,856 INFO L495 AbstractCegarLoop]: Abstraction has 44285 states and 72912 transitions. [2023-11-29 02:33:06,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.625) internal successors, (365), 8 states have internal predecessors, (365), 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) [2023-11-29 02:33:06,856 INFO L276 IsEmpty]: Start isEmpty. Operand 44285 states and 72912 transitions. [2023-11-29 02:33:06,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2023-11-29 02:33:06,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:06,870 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:33:06,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 02:33:06,870 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:33:06,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:06,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1787018078, now seen corresponding path program 1 times [2023-11-29 02:33:06,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:33:06,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522697669] [2023-11-29 02:33:06,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:06,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:33:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:09,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:33:09,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:33:09,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522697669] [2023-11-29 02:33:09,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522697669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:09,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:09,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:33:09,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228596542] [2023-11-29 02:33:09,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:09,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:33:09,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:33:09,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:33:09,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:33:09,825 INFO L87 Difference]: Start difference. First operand 44285 states and 72912 transitions. Second operand has 5 states, 5 states have (on average 73.2) internal successors, (366), 4 states have internal predecessors, (366), 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) [2023-11-29 02:33:10,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:33:10,442 INFO L93 Difference]: Finished difference Result 67642 states and 111291 transitions. [2023-11-29 02:33:10,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:33:10,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 4 states have internal predecessors, (366), 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 366 [2023-11-29 02:33:10,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:33:10,474 INFO L225 Difference]: With dead ends: 67642 [2023-11-29 02:33:10,474 INFO L226 Difference]: Without dead ends: 44397 [2023-11-29 02:33:10,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:33:10,490 INFO L413 NwaCegarLoop]: 1109 mSDtfsCounter, 1094 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:33:10,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 3323 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:33:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44397 states. [2023-11-29 02:33:10,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44397 to 44381. [2023-11-29 02:33:10,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44381 states, 44380 states have (on average 1.6457863902658856) internal successors, (73040), 44380 states have internal predecessors, (73040), 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) [2023-11-29 02:33:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44381 states to 44381 states and 73040 transitions. [2023-11-29 02:33:10,854 INFO L78 Accepts]: Start accepts. Automaton has 44381 states and 73040 transitions. Word has length 366 [2023-11-29 02:33:10,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:10,855 INFO L495 AbstractCegarLoop]: Abstraction has 44381 states and 73040 transitions. [2023-11-29 02:33:10,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 4 states have internal predecessors, (366), 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) [2023-11-29 02:33:10,855 INFO L276 IsEmpty]: Start isEmpty. Operand 44381 states and 73040 transitions. [2023-11-29 02:33:10,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2023-11-29 02:33:10,869 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:10,869 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:33:10,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 02:33:10,870 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:33:10,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:10,870 INFO L85 PathProgramCache]: Analyzing trace with hash 601545952, now seen corresponding path program 1 times [2023-11-29 02:33:10,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:33:10,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906646744] [2023-11-29 02:33:10,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:10,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:33:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:33:15,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:33:15,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906646744] [2023-11-29 02:33:15,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906646744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:15,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:15,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 02:33:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440286642] [2023-11-29 02:33:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:15,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:33:15,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:33:15,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:33:15,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:33:15,978 INFO L87 Difference]: Start difference. First operand 44381 states and 73040 transitions. Second operand has 10 states, 10 states have (on average 36.6) internal successors, (366), 9 states have internal predecessors, (366), 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) [2023-11-29 02:33:18,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:33:18,435 INFO L93 Difference]: Finished difference Result 67147 states and 110510 transitions. [2023-11-29 02:33:18,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:33:18,435 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 36.6) internal successors, (366), 9 states have internal predecessors, (366), 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 366 [2023-11-29 02:33:18,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:33:18,462 INFO L225 Difference]: With dead ends: 67147 [2023-11-29 02:33:18,462 INFO L226 Difference]: Without dead ends: 43658 [2023-11-29 02:33:18,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:33:18,477 INFO L413 NwaCegarLoop]: 1534 mSDtfsCounter, 5181 mSDsluCounter, 6375 mSDsCounter, 0 mSdLazyCounter, 3025 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5181 SdHoareTripleChecker+Valid, 7909 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:33:18,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5181 Valid, 7909 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3025 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 02:33:18,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43658 states. [2023-11-29 02:33:18,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43658 to 39734. [2023-11-29 02:33:18,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39734 states, 39733 states have (on average 1.6499383384088793) internal successors, (65557), 39733 states have internal predecessors, (65557), 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) [2023-11-29 02:33:18,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39734 states to 39734 states and 65557 transitions. [2023-11-29 02:33:18,815 INFO L78 Accepts]: Start accepts. Automaton has 39734 states and 65557 transitions. Word has length 366 [2023-11-29 02:33:18,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:18,815 INFO L495 AbstractCegarLoop]: Abstraction has 39734 states and 65557 transitions. [2023-11-29 02:33:18,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 36.6) internal successors, (366), 9 states have internal predecessors, (366), 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) [2023-11-29 02:33:18,815 INFO L276 IsEmpty]: Start isEmpty. Operand 39734 states and 65557 transitions. [2023-11-29 02:33:18,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-11-29 02:33:18,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:18,828 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:33:18,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 02:33:18,829 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:33:18,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:18,829 INFO L85 PathProgramCache]: Analyzing trace with hash -677854239, now seen corresponding path program 1 times [2023-11-29 02:33:18,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:33:18,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699863184] [2023-11-29 02:33:18,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:18,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:33:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:20,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:33:20,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:33:20,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699863184] [2023-11-29 02:33:20,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699863184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:20,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:20,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:33:20,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861676059] [2023-11-29 02:33:20,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:20,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:33:20,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:33:20,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:33:20,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:33:20,661 INFO L87 Difference]: Start difference. First operand 39734 states and 65557 transitions. Second operand has 5 states, 5 states have (on average 73.4) internal successors, (367), 4 states have internal predecessors, (367), 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) [2023-11-29 02:33:21,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:33:21,271 INFO L93 Difference]: Finished difference Result 60242 states and 99370 transitions. [2023-11-29 02:33:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:33:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 4 states have internal predecessors, (367), 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 367 [2023-11-29 02:33:21,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:33:21,297 INFO L225 Difference]: With dead ends: 60242 [2023-11-29 02:33:21,297 INFO L226 Difference]: Without dead ends: 39766 [2023-11-29 02:33:21,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:33:21,310 INFO L413 NwaCegarLoop]: 1109 mSDtfsCounter, 1026 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 3325 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:33:21,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 3325 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:33:21,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39766 states. [2023-11-29 02:33:21,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39766 to 39758. [2023-11-29 02:33:21,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39758 states, 39757 states have (on average 1.6495459919007973) internal successors, (65581), 39757 states have internal predecessors, (65581), 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) [2023-11-29 02:33:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39758 states to 39758 states and 65581 transitions. [2023-11-29 02:33:21,762 INFO L78 Accepts]: Start accepts. Automaton has 39758 states and 65581 transitions. Word has length 367 [2023-11-29 02:33:21,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:21,763 INFO L495 AbstractCegarLoop]: Abstraction has 39758 states and 65581 transitions. [2023-11-29 02:33:21,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 4 states have internal predecessors, (367), 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) [2023-11-29 02:33:21,763 INFO L276 IsEmpty]: Start isEmpty. Operand 39758 states and 65581 transitions. [2023-11-29 02:33:21,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-11-29 02:33:21,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:21,776 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:33:21,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 02:33:21,777 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:33:21,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:21,777 INFO L85 PathProgramCache]: Analyzing trace with hash 708349155, now seen corresponding path program 1 times [2023-11-29 02:33:21,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:33:21,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449027512] [2023-11-29 02:33:21,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:21,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:33:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:28,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:33:28,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:33:28,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449027512] [2023-11-29 02:33:28,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449027512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:28,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:28,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 02:33:28,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894014879] [2023-11-29 02:33:28,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:28,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 02:33:28,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:33:28,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 02:33:28,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:33:28,082 INFO L87 Difference]: Start difference. First operand 39758 states and 65581 transitions. Second operand has 17 states, 17 states have (on average 21.58823529411765) internal successors, (367), 16 states have internal predecessors, (367), 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) [2023-11-29 02:33:34,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:33:34,880 INFO L93 Difference]: Finished difference Result 134418 states and 221787 transitions. [2023-11-29 02:33:34,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 02:33:34,880 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 21.58823529411765) internal successors, (367), 16 states have internal predecessors, (367), 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 367 [2023-11-29 02:33:34,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:33:34,960 INFO L225 Difference]: With dead ends: 134418 [2023-11-29 02:33:34,960 INFO L226 Difference]: Without dead ends: 113923 [2023-11-29 02:33:34,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=603, Invalid=2049, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 02:33:34,990 INFO L413 NwaCegarLoop]: 2191 mSDtfsCounter, 23485 mSDsluCounter, 25508 mSDsCounter, 0 mSdLazyCounter, 7397 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23485 SdHoareTripleChecker+Valid, 27699 SdHoareTripleChecker+Invalid, 7411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 7397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:33:34,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23485 Valid, 27699 Invalid, 7411 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 7397 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-29 02:33:35,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113923 states. [2023-11-29 02:33:35,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113923 to 49214. [2023-11-29 02:33:35,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49214 states, 49213 states have (on average 1.6498282974010932) internal successors, (81193), 49213 states have internal predecessors, (81193), 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) [2023-11-29 02:33:35,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49214 states to 49214 states and 81193 transitions. [2023-11-29 02:33:35,765 INFO L78 Accepts]: Start accepts. Automaton has 49214 states and 81193 transitions. Word has length 367 [2023-11-29 02:33:35,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:35,766 INFO L495 AbstractCegarLoop]: Abstraction has 49214 states and 81193 transitions. [2023-11-29 02:33:35,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 21.58823529411765) internal successors, (367), 16 states have internal predecessors, (367), 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) [2023-11-29 02:33:35,766 INFO L276 IsEmpty]: Start isEmpty. Operand 49214 states and 81193 transitions. [2023-11-29 02:33:35,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-11-29 02:33:35,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:35,782 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:33:35,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 02:33:35,782 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:33:35,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1799525727, now seen corresponding path program 1 times [2023-11-29 02:33:35,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:33:35,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4190445] [2023-11-29 02:33:35,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:35,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:33:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:33:44,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:33:44,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4190445] [2023-11-29 02:33:44,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4190445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:44,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:44,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 02:33:44,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088125438] [2023-11-29 02:33:44,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:44,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 02:33:44,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:33:44,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 02:33:44,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:33:44,661 INFO L87 Difference]: Start difference. First operand 49214 states and 81193 transitions. Second operand has 15 states, 15 states have (on average 24.466666666666665) internal successors, (367), 14 states have internal predecessors, (367), 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) [2023-11-29 02:33:46,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:33:46,559 INFO L93 Difference]: Finished difference Result 337650 states and 555818 transitions. [2023-11-29 02:33:46,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 02:33:46,559 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 24.466666666666665) internal successors, (367), 14 states have internal predecessors, (367), 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 367 [2023-11-29 02:33:46,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:33:46,794 INFO L225 Difference]: With dead ends: 337650 [2023-11-29 02:33:46,795 INFO L226 Difference]: Without dead ends: 309908 [2023-11-29 02:33:46,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=388, Invalid=1334, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 02:33:46,863 INFO L413 NwaCegarLoop]: 1876 mSDtfsCounter, 20351 mSDsluCounter, 20174 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20351 SdHoareTripleChecker+Valid, 22050 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:33:46,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20351 Valid, 22050 Invalid, 609 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:33:47,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309908 states. [2023-11-29 02:33:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309908 to 91518. [2023-11-29 02:33:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91518 states, 91517 states have (on average 1.6493656916201362) internal successors, (150945), 91517 states have internal predecessors, (150945), 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) [2023-11-29 02:33:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91518 states to 91518 states and 150945 transitions. [2023-11-29 02:33:48,801 INFO L78 Accepts]: Start accepts. Automaton has 91518 states and 150945 transitions. Word has length 367 [2023-11-29 02:33:48,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:48,802 INFO L495 AbstractCegarLoop]: Abstraction has 91518 states and 150945 transitions. [2023-11-29 02:33:48,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 24.466666666666665) internal successors, (367), 14 states have internal predecessors, (367), 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) [2023-11-29 02:33:48,802 INFO L276 IsEmpty]: Start isEmpty. Operand 91518 states and 150945 transitions. [2023-11-29 02:33:48,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-29 02:33:48,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:48,849 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:33:48,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 02:33:48,849 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:33:48,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:48,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1575787254, now seen corresponding path program 1 times [2023-11-29 02:33:48,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:33:48,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915518876] [2023-11-29 02:33:48,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:48,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:33:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:02,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:34:02,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:34:02,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915518876] [2023-11-29 02:34:02,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915518876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:02,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:02,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-11-29 02:34:02,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991168752] [2023-11-29 02:34:02,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:02,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 02:34:02,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:34:02,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 02:34:02,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:34:02,423 INFO L87 Difference]: Start difference. First operand 91518 states and 150945 transitions. Second operand has 23 states, 23 states have (on average 16.0) internal successors, (368), 22 states have internal predecessors, (368), 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) [2023-11-29 02:34:20,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:20,137 INFO L93 Difference]: Finished difference Result 968230 states and 1589356 transitions. [2023-11-29 02:34:20,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2023-11-29 02:34:20,138 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 16.0) internal successors, (368), 22 states have internal predecessors, (368), 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 368 [2023-11-29 02:34:20,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:20,991 INFO L225 Difference]: With dead ends: 968230 [2023-11-29 02:34:20,991 INFO L226 Difference]: Without dead ends: 903920 [2023-11-29 02:34:21,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9693 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=4076, Invalid=21046, Unknown=0, NotChecked=0, Total=25122 [2023-11-29 02:34:21,120 INFO L413 NwaCegarLoop]: 1903 mSDtfsCounter, 62907 mSDsluCounter, 48386 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62907 SdHoareTripleChecker+Valid, 50289 SdHoareTripleChecker+Invalid, 2845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:21,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62907 Valid, 50289 Invalid, 2845 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [177 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-29 02:34:21,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903920 states. [2023-11-29 02:34:25,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903920 to 170983. [2023-11-29 02:34:25,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170983 states, 170982 states have (on average 1.6316746792059984) internal successors, (278987), 170982 states have internal predecessors, (278987), 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) [2023-11-29 02:34:26,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170983 states to 170983 states and 278987 transitions. [2023-11-29 02:34:26,045 INFO L78 Accepts]: Start accepts. Automaton has 170983 states and 278987 transitions. Word has length 368 [2023-11-29 02:34:26,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:26,045 INFO L495 AbstractCegarLoop]: Abstraction has 170983 states and 278987 transitions. [2023-11-29 02:34:26,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 16.0) internal successors, (368), 22 states have internal predecessors, (368), 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) [2023-11-29 02:34:26,046 INFO L276 IsEmpty]: Start isEmpty. Operand 170983 states and 278987 transitions. [2023-11-29 02:34:26,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-29 02:34:26,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:26,113 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:26,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-11-29 02:34:26,113 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:34:26,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:26,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1203898806, now seen corresponding path program 1 times [2023-11-29 02:34:26,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:34:26,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5964372] [2023-11-29 02:34:26,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:26,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:34:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:32,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:34:32,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:34:32,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5964372] [2023-11-29 02:34:32,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5964372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:32,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:32,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-29 02:34:32,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828956485] [2023-11-29 02:34:32,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:32,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:34:32,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:34:32,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:34:32,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:34:32,419 INFO L87 Difference]: Start difference. First operand 170983 states and 278987 transitions. Second operand has 16 states, 16 states have (on average 23.0) internal successors, (368), 15 states have internal predecessors, (368), 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) [2023-11-29 02:34:37,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:37,725 INFO L93 Difference]: Finished difference Result 386990 states and 631473 transitions. [2023-11-29 02:34:37,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 02:34:37,726 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 23.0) internal successors, (368), 15 states have internal predecessors, (368), 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 368 [2023-11-29 02:34:37,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:37,907 INFO L225 Difference]: With dead ends: 386990 [2023-11-29 02:34:37,908 INFO L226 Difference]: Without dead ends: 263224 [2023-11-29 02:34:37,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=252, Invalid=740, Unknown=0, NotChecked=0, Total=992 [2023-11-29 02:34:37,980 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 12309 mSDsluCounter, 13280 mSDsCounter, 0 mSdLazyCounter, 5719 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12309 SdHoareTripleChecker+Valid, 14778 SdHoareTripleChecker+Invalid, 5730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 5719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:37,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12309 Valid, 14778 Invalid, 5730 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 5719 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 02:34:38,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263224 states. [2023-11-29 02:34:40,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263224 to 185293. [2023-11-29 02:34:40,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185293 states, 185292 states have (on average 1.6349599550978995) internal successors, (302945), 185292 states have internal predecessors, (302945), 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) [2023-11-29 02:34:40,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185293 states to 185293 states and 302945 transitions. [2023-11-29 02:34:40,785 INFO L78 Accepts]: Start accepts. Automaton has 185293 states and 302945 transitions. Word has length 368 [2023-11-29 02:34:40,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:40,785 INFO L495 AbstractCegarLoop]: Abstraction has 185293 states and 302945 transitions. [2023-11-29 02:34:40,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 23.0) internal successors, (368), 15 states have internal predecessors, (368), 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) [2023-11-29 02:34:40,786 INFO L276 IsEmpty]: Start isEmpty. Operand 185293 states and 302945 transitions. [2023-11-29 02:34:40,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-29 02:34:40,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:40,844 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:40,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-29 02:34:40,844 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:34:40,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:40,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1810204700, now seen corresponding path program 1 times [2023-11-29 02:34:40,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:34:40,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702176751] [2023-11-29 02:34:40,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:40,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:34:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:44,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:34:44,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:34:44,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702176751] [2023-11-29 02:34:44,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702176751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:44,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:44,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:34:44,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426384026] [2023-11-29 02:34:44,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:44,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:34:44,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:34:44,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:34:44,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:34:44,609 INFO L87 Difference]: Start difference. First operand 185293 states and 302945 transitions. Second operand has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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) [2023-11-29 02:34:46,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:46,480 INFO L93 Difference]: Finished difference Result 422375 states and 686103 transitions. [2023-11-29 02:34:46,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:34:46,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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 368 [2023-11-29 02:34:46,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:46,694 INFO L225 Difference]: With dead ends: 422375 [2023-11-29 02:34:46,694 INFO L226 Difference]: Without dead ends: 306338 [2023-11-29 02:34:46,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:34:46,764 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 3215 mSDsluCounter, 5885 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3215 SdHoareTripleChecker+Valid, 7481 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:46,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3215 Valid, 7481 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:34:46,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306338 states. [2023-11-29 02:34:49,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306338 to 189933. [2023-11-29 02:34:49,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189933 states, 189932 states have (on average 1.6243339721584567) internal successors, (308513), 189932 states have internal predecessors, (308513), 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) [2023-11-29 02:34:49,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189933 states to 189933 states and 308513 transitions. [2023-11-29 02:34:49,703 INFO L78 Accepts]: Start accepts. Automaton has 189933 states and 308513 transitions. Word has length 368 [2023-11-29 02:34:49,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:49,704 INFO L495 AbstractCegarLoop]: Abstraction has 189933 states and 308513 transitions. [2023-11-29 02:34:49,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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) [2023-11-29 02:34:49,704 INFO L276 IsEmpty]: Start isEmpty. Operand 189933 states and 308513 transitions. [2023-11-29 02:34:49,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-29 02:34:49,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:49,769 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:49,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-29 02:34:49,769 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:34:49,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:49,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1027228076, now seen corresponding path program 1 times [2023-11-29 02:34:49,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:34:49,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407087910] [2023-11-29 02:34:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:49,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:34:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:54,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:34:54,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:34:54,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407087910] [2023-11-29 02:34:54,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407087910] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:54,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:54,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:34:54,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174763776] [2023-11-29 02:34:54,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:54,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:34:54,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:34:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:34:54,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:34:54,490 INFO L87 Difference]: Start difference. First operand 189933 states and 308513 transitions. Second operand has 8 states, 8 states have (on average 46.0) internal successors, (368), 7 states have internal predecessors, (368), 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) [2023-11-29 02:34:56,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:56,590 INFO L93 Difference]: Finished difference Result 460521 states and 746326 transitions. [2023-11-29 02:34:56,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:34:56,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 7 states have internal predecessors, (368), 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 368 [2023-11-29 02:34:56,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:56,823 INFO L225 Difference]: With dead ends: 460521 [2023-11-29 02:34:56,823 INFO L226 Difference]: Without dead ends: 311260 [2023-11-29 02:34:56,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:34:56,898 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 4213 mSDsluCounter, 7369 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4213 SdHoareTripleChecker+Valid, 8922 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:56,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4213 Valid, 8922 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:34:57,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311260 states. [2023-11-29 02:34:59,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311260 to 208469. [2023-11-29 02:34:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208469 states, 208468 states have (on average 1.6168668572634648) internal successors, (337065), 208468 states have internal predecessors, (337065), 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) [2023-11-29 02:34:59,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208469 states to 208469 states and 337065 transitions. [2023-11-29 02:34:59,627 INFO L78 Accepts]: Start accepts. Automaton has 208469 states and 337065 transitions. Word has length 368 [2023-11-29 02:34:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:59,627 INFO L495 AbstractCegarLoop]: Abstraction has 208469 states and 337065 transitions. [2023-11-29 02:34:59,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 7 states have internal predecessors, (368), 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) [2023-11-29 02:34:59,627 INFO L276 IsEmpty]: Start isEmpty. Operand 208469 states and 337065 transitions. [2023-11-29 02:35:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-29 02:35:00,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:35:00,025 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:35:00,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-11-29 02:35:00,026 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:35:00,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:35:00,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2103910264, now seen corresponding path program 1 times [2023-11-29 02:35:00,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:35:00,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183796358] [2023-11-29 02:35:00,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:35:00,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:35:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:35:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:35:04,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:35:04,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183796358] [2023-11-29 02:35:04,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183796358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:35:04,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:35:04,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:35:04,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418788814] [2023-11-29 02:35:04,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:35:04,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:35:04,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:35:04,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:35:04,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:35:04,164 INFO L87 Difference]: Start difference. First operand 208469 states and 337065 transitions. Second operand has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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) [2023-11-29 02:35:05,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:35:05,963 INFO L93 Difference]: Finished difference Result 539969 states and 867811 transitions. [2023-11-29 02:35:05,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:35:05,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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 368 [2023-11-29 02:35:05,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:35:06,253 INFO L225 Difference]: With dead ends: 539969 [2023-11-29 02:35:06,253 INFO L226 Difference]: Without dead ends: 375760 [2023-11-29 02:35:06,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:35:06,331 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 2500 mSDsluCounter, 6086 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 7706 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:35:06,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2500 Valid, 7706 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:35:06,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375760 states. [2023-11-29 02:35:09,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375760 to 213925. [2023-11-29 02:35:09,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213925 states, 213924 states have (on average 1.6063321553448888) internal successors, (343633), 213924 states have internal predecessors, (343633), 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) [2023-11-29 02:35:09,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213925 states to 213925 states and 343633 transitions. [2023-11-29 02:35:09,593 INFO L78 Accepts]: Start accepts. Automaton has 213925 states and 343633 transitions. Word has length 368 [2023-11-29 02:35:09,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:35:09,594 INFO L495 AbstractCegarLoop]: Abstraction has 213925 states and 343633 transitions. [2023-11-29 02:35:09,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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) [2023-11-29 02:35:09,594 INFO L276 IsEmpty]: Start isEmpty. Operand 213925 states and 343633 transitions. [2023-11-29 02:35:09,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-29 02:35:09,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:35:09,667 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:35:09,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-11-29 02:35:09,667 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:35:09,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:35:09,667 INFO L85 PathProgramCache]: Analyzing trace with hash 382932188, now seen corresponding path program 1 times [2023-11-29 02:35:09,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:35:09,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309919132] [2023-11-29 02:35:09,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:35:09,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:35:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:35:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:35:13,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:35:13,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309919132] [2023-11-29 02:35:13,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309919132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:35:13,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:35:13,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:35:13,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913848774] [2023-11-29 02:35:13,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:35:13,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:35:13,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:35:13,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:35:13,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:35:13,109 INFO L87 Difference]: Start difference. First operand 213925 states and 343633 transitions. Second operand has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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) [2023-11-29 02:35:14,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:35:14,573 INFO L93 Difference]: Finished difference Result 557887 states and 891399 transitions. [2023-11-29 02:35:14,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:35:14,574 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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 368 [2023-11-29 02:35:14,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:35:14,889 INFO L225 Difference]: With dead ends: 557887 [2023-11-29 02:35:14,889 INFO L226 Difference]: Without dead ends: 380042 [2023-11-29 02:35:14,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:35:14,985 INFO L413 NwaCegarLoop]: 1689 mSDtfsCounter, 3440 mSDsluCounter, 6364 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3440 SdHoareTripleChecker+Valid, 8053 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:35:14,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3440 Valid, 8053 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:35:15,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380042 states. [2023-11-29 02:35:17,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380042 to 218309. [2023-11-29 02:35:17,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218309 states, 218308 states have (on average 1.5969410191106144) internal successors, (348625), 218308 states have internal predecessors, (348625), 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) [2023-11-29 02:35:17,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218309 states to 218309 states and 348625 transitions. [2023-11-29 02:35:17,980 INFO L78 Accepts]: Start accepts. Automaton has 218309 states and 348625 transitions. Word has length 368 [2023-11-29 02:35:17,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:35:17,980 INFO L495 AbstractCegarLoop]: Abstraction has 218309 states and 348625 transitions. [2023-11-29 02:35:17,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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) [2023-11-29 02:35:17,980 INFO L276 IsEmpty]: Start isEmpty. Operand 218309 states and 348625 transitions. [2023-11-29 02:35:18,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-29 02:35:18,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:35:18,050 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:35:18,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-11-29 02:35:18,050 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:35:18,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:35:18,051 INFO L85 PathProgramCache]: Analyzing trace with hash 370098032, now seen corresponding path program 1 times [2023-11-29 02:35:18,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:35:18,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380387091] [2023-11-29 02:35:18,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:35:18,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:35:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:35:21,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:35:21,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:35:21,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380387091] [2023-11-29 02:35:21,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380387091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:35:21,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:35:21,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:35:21,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251133983] [2023-11-29 02:35:21,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:35:21,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:35:21,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:35:21,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:35:21,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:35:21,567 INFO L87 Difference]: Start difference. First operand 218309 states and 348625 transitions. Second operand has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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) [2023-11-29 02:35:22,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:35:22,995 INFO L93 Difference]: Finished difference Result 614351 states and 977567 transitions. [2023-11-29 02:35:22,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:35:22,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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 368 [2023-11-29 02:35:22,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:35:23,388 INFO L225 Difference]: With dead ends: 614351 [2023-11-29 02:35:23,388 INFO L226 Difference]: Without dead ends: 417750 [2023-11-29 02:35:23,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:35:23,492 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 3539 mSDsluCounter, 6322 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3539 SdHoareTripleChecker+Valid, 7985 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:35:23,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3539 Valid, 7985 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:35:23,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417750 states. [2023-11-29 02:35:26,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417750 to 220949. [2023-11-29 02:35:26,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220949 states, 220948 states have (on average 1.592198164273947) internal successors, (351793), 220948 states have internal predecessors, (351793), 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) [2023-11-29 02:35:26,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220949 states to 220949 states and 351793 transitions. [2023-11-29 02:35:26,914 INFO L78 Accepts]: Start accepts. Automaton has 220949 states and 351793 transitions. Word has length 368 [2023-11-29 02:35:26,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:35:26,915 INFO L495 AbstractCegarLoop]: Abstraction has 220949 states and 351793 transitions. [2023-11-29 02:35:26,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 6 states have internal predecessors, (368), 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) [2023-11-29 02:35:26,915 INFO L276 IsEmpty]: Start isEmpty. Operand 220949 states and 351793 transitions. [2023-11-29 02:35:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-29 02:35:26,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:35:26,988 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:35:26,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-11-29 02:35:26,988 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:35:26,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:35:26,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1077834935, now seen corresponding path program 1 times [2023-11-29 02:35:26,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:35:26,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159715028] [2023-11-29 02:35:26,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:35:26,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:35:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:35:35,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:35:35,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:35:35,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159715028] [2023-11-29 02:35:35,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159715028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:35:35,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:35:35,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:35:35,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746025888] [2023-11-29 02:35:35,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:35:35,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:35:35,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:35:35,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:35:35,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:35:35,481 INFO L87 Difference]: Start difference. First operand 220949 states and 351793 transitions. Second operand has 13 states, 13 states have (on average 28.307692307692307) internal successors, (368), 12 states have internal predecessors, (368), 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) [2023-11-29 02:35:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:35:38,982 INFO L93 Difference]: Finished difference Result 1031481 states and 1640941 transitions. [2023-11-29 02:35:38,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 02:35:38,983 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 28.307692307692307) internal successors, (368), 12 states have internal predecessors, (368), 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 368 [2023-11-29 02:35:38,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:35:39,709 INFO L225 Difference]: With dead ends: 1031481 [2023-11-29 02:35:39,709 INFO L226 Difference]: Without dead ends: 898426 [2023-11-29 02:35:39,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=372, Invalid=1268, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 02:35:39,810 INFO L413 NwaCegarLoop]: 1904 mSDtfsCounter, 20869 mSDsluCounter, 17174 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20869 SdHoareTripleChecker+Valid, 19078 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:35:39,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20869 Valid, 19078 Invalid, 263 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:35:40,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898426 states. [2023-11-29 02:35:44,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898426 to 239197. [2023-11-29 02:35:44,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239197 states, 239196 states have (on average 1.5913351393836017) internal successors, (380641), 239196 states have internal predecessors, (380641), 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) [2023-11-29 02:35:45,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239197 states to 239197 states and 380641 transitions. [2023-11-29 02:35:45,240 INFO L78 Accepts]: Start accepts. Automaton has 239197 states and 380641 transitions. Word has length 368 [2023-11-29 02:35:45,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:35:45,240 INFO L495 AbstractCegarLoop]: Abstraction has 239197 states and 380641 transitions. [2023-11-29 02:35:45,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 28.307692307692307) internal successors, (368), 12 states have internal predecessors, (368), 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) [2023-11-29 02:35:45,241 INFO L276 IsEmpty]: Start isEmpty. Operand 239197 states and 380641 transitions. [2023-11-29 02:35:45,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-29 02:35:45,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:35:45,333 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:35:45,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-11-29 02:35:45,333 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:35:45,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:35:45,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1258637721, now seen corresponding path program 1 times [2023-11-29 02:35:45,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:35:45,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215417628] [2023-11-29 02:35:45,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:35:45,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:35:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:35:47,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:35:47,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:35:47,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215417628] [2023-11-29 02:35:47,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215417628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:35:47,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:35:47,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:35:47,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368570888] [2023-11-29 02:35:47,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:35:47,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:35:47,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:35:47,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:35:47,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:35:47,959 INFO L87 Difference]: Start difference. First operand 239197 states and 380641 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 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) [2023-11-29 02:35:48,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:35:48,882 INFO L93 Difference]: Finished difference Result 384052 states and 610295 transitions. [2023-11-29 02:35:48,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:35:48,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 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 369 [2023-11-29 02:35:48,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:35:49,079 INFO L225 Difference]: With dead ends: 384052 [2023-11-29 02:35:49,079 INFO L226 Difference]: Without dead ends: 240125 [2023-11-29 02:35:49,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:35:49,413 INFO L413 NwaCegarLoop]: 1238 mSDtfsCounter, 1122 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:35:49,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 3710 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:35:49,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240125 states. [2023-11-29 02:35:51,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240125 to 239797. [2023-11-29 02:35:51,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239797 states, 239796 states have (on average 1.590689586148226) internal successors, (381441), 239796 states have internal predecessors, (381441), 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) [2023-11-29 02:35:52,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239797 states to 239797 states and 381441 transitions. [2023-11-29 02:35:52,028 INFO L78 Accepts]: Start accepts. Automaton has 239797 states and 381441 transitions. Word has length 369 [2023-11-29 02:35:52,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:35:52,028 INFO L495 AbstractCegarLoop]: Abstraction has 239797 states and 381441 transitions. [2023-11-29 02:35:52,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 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) [2023-11-29 02:35:52,029 INFO L276 IsEmpty]: Start isEmpty. Operand 239797 states and 381441 transitions. [2023-11-29 02:35:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-29 02:35:52,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:35:52,111 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:35:52,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-11-29 02:35:52,112 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:35:52,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:35:52,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2089291689, now seen corresponding path program 1 times [2023-11-29 02:35:52,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:35:52,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644433851] [2023-11-29 02:35:52,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:35:52,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:35:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:36:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:36:00,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:36:00,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644433851] [2023-11-29 02:36:00,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644433851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:36:00,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:36:00,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:36:00,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884429208] [2023-11-29 02:36:00,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:36:00,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:36:00,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:36:00,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:36:00,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:36:00,119 INFO L87 Difference]: Start difference. First operand 239797 states and 381441 transitions. Second operand has 11 states, 11 states have (on average 33.54545454545455) internal successors, (369), 10 states have internal predecessors, (369), 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) [2023-11-29 02:36:03,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:36:03,419 INFO L93 Difference]: Finished difference Result 862728 states and 1373574 transitions. [2023-11-29 02:36:03,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:36:03,420 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 33.54545454545455) internal successors, (369), 10 states have internal predecessors, (369), 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 369 [2023-11-29 02:36:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:36:03,972 INFO L225 Difference]: With dead ends: 862728 [2023-11-29 02:36:03,972 INFO L226 Difference]: Without dead ends: 625383 [2023-11-29 02:36:04,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:36:04,109 INFO L413 NwaCegarLoop]: 1193 mSDtfsCounter, 7493 mSDsluCounter, 9472 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7493 SdHoareTripleChecker+Valid, 10665 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:36:04,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7493 Valid, 10665 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 02:36:04,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625383 states.