./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/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_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/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 32bit --witnessprinter.graph.data.programhash e88e261bdd8209c6645351b9246697a266f2a89be3660180d29cb5cfb2f2528f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:58:35,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:58:35,734 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 02:58:35,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:58:35,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:58:35,763 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:58:35,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:58:35,764 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:58:35,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:58:35,765 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:58:35,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:58:35,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:58:35,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:58:35,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:58:35,768 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:58:35,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:58:35,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:58:35,770 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:58:35,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:58:35,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:58:35,771 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:58:35,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:58:35,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:58:35,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:58:35,773 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:58:35,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:58:35,774 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:58:35,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:58:35,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:58:35,776 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:58:35,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:58:35,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:58:35,777 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:58:35,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:58:35,778 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:58:35,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:58:35,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:58:35,783 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:58:35,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:58:35,784 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:58:35,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:58:35,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:58:35,785 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_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e88e261bdd8209c6645351b9246697a266f2a89be3660180d29cb5cfb2f2528f [2023-11-29 02:58:36,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:58:36,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:58:36,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:58:36,049 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:58:36,050 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:58:36,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2023-11-29 02:58:38,805 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:58:39,113 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:58:39,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2023-11-29 02:58:39,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya/data/a106c0d2c/7267445cda344db7b351a1ea19831cd8/FLAGf69c8f1e0 [2023-11-29 02:58:39,145 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya/data/a106c0d2c/7267445cda344db7b351a1ea19831cd8 [2023-11-29 02:58:39,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:58:39,149 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:58:39,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:58:39,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:58:39,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:58:39,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:39,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522b4073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39, skipping insertion in model container [2023-11-29 02:58:39,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:39,239 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:58:39,552 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_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[22673,22686] [2023-11-29 02:58:39,680 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:58:39,699 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:58:39,812 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_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[22673,22686] [2023-11-29 02:58:39,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:58:39,921 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:58:39,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39 WrapperNode [2023-11-29 02:58:39,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:58:39,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:58:39,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:58:39,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:58:39,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:39,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:40,109 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2906 [2023-11-29 02:58:40,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:58:40,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:58:40,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:58:40,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:58:40,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:40,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:40,132 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:40,166 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 02:58:40,166 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:40,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:40,198 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:40,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:40,227 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:40,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:40,248 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:58:40,249 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:58:40,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:58:40,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:58:40,250 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (1/1) ... [2023-11-29 02:58:40,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:58:40,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:40,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:40,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7133ae3-41dc-4774-a1e1-a6d26b54ccfa/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:58:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:58:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:58:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:58:40,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:58:40,524 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:58:40,526 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:58:42,319 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:58:42,390 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:58:42,391 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 02:58:42,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:58:42 BoogieIcfgContainer [2023-11-29 02:58:42,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:58:42,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:58:42,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:58:42,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:58:42,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:58:39" (1/3) ... [2023-11-29 02:58:42,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff43fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:58:42, skipping insertion in model container [2023-11-29 02:58:42,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:39" (2/3) ... [2023-11-29 02:58:42,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff43fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:58:42, skipping insertion in model container [2023-11-29 02:58:42,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:58:42" (3/3) ... [2023-11-29 02:58:42,400 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2023-11-29 02:58:42,419 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:58:42,419 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:58:42,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:58:42,495 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;@7b3c05e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:58:42,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:58:42,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 746 states have (on average 1.8351206434316354) internal successors, (1369), 755 states have internal predecessors, (1369), 0 states have call successors, (0), 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 02:58:42,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 02:58:42,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:42,533 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] [2023-11-29 02:58:42,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:42,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:42,540 INFO L85 PathProgramCache]: Analyzing trace with hash 938918786, now seen corresponding path program 1 times [2023-11-29 02:58:42,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:42,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061926467] [2023-11-29 02:58:42,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:42,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:43,132 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 02:58:43,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:43,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061926467] [2023-11-29 02:58:43,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061926467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:43,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:43,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:43,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533314308] [2023-11-29 02:58:43,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:43,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:43,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:43,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:43,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:43,189 INFO L87 Difference]: Start difference. First operand has 756 states, 746 states have (on average 1.8351206434316354) internal successors, (1369), 755 states have internal predecessors, (1369), 0 states have call successors, (0), 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 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 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 02:58:43,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:43,312 INFO L93 Difference]: Finished difference Result 1198 states and 2095 transitions. [2023-11-29 02:58:43,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:43,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 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 192 [2023-11-29 02:58:43,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:43,339 INFO L225 Difference]: With dead ends: 1198 [2023-11-29 02:58:43,340 INFO L226 Difference]: Without dead ends: 950 [2023-11-29 02:58:43,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:43,347 INFO L413 NwaCegarLoop]: 1361 mSDtfsCounter, 371 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:43,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 2652 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:43,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2023-11-29 02:58:43,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 948. [2023-11-29 02:58:43,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 947 states have (on average 1.7370644139387539) internal successors, (1645), 947 states have internal predecessors, (1645), 0 states have call successors, (0), 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 02:58:43,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1645 transitions. [2023-11-29 02:58:43,437 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1645 transitions. Word has length 192 [2023-11-29 02:58:43,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:43,438 INFO L495 AbstractCegarLoop]: Abstraction has 948 states and 1645 transitions. [2023-11-29 02:58:43,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 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 02:58:43,439 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1645 transitions. [2023-11-29 02:58:43,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-29 02:58:43,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:43,444 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] [2023-11-29 02:58:43,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:58:43,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:43,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:43,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1521085881, now seen corresponding path program 1 times [2023-11-29 02:58:43,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:43,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103578261] [2023-11-29 02:58:43,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:43,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:43,642 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 02:58:43,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:43,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103578261] [2023-11-29 02:58:43,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103578261] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:43,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:43,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:43,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867330227] [2023-11-29 02:58:43,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:43,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:43,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:43,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:43,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:43,647 INFO L87 Difference]: Start difference. First operand 948 states and 1645 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 02:58:43,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:43,686 INFO L93 Difference]: Finished difference Result 1766 states and 2997 transitions. [2023-11-29 02:58:43,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:43,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2023-11-29 02:58:43,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:43,695 INFO L225 Difference]: With dead ends: 1766 [2023-11-29 02:58:43,695 INFO L226 Difference]: Without dead ends: 1345 [2023-11-29 02:58:43,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:43,699 INFO L413 NwaCegarLoop]: 1307 mSDtfsCounter, 329 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:43,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 2581 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:43,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2023-11-29 02:58:43,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1343. [2023-11-29 02:58:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 1342 states have (on average 1.7108792846497765) internal successors, (2296), 1342 states have internal predecessors, (2296), 0 states have call successors, (0), 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 02:58:43,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 2296 transitions. [2023-11-29 02:58:43,733 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 2296 transitions. Word has length 196 [2023-11-29 02:58:43,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:43,733 INFO L495 AbstractCegarLoop]: Abstraction has 1343 states and 2296 transitions. [2023-11-29 02:58:43,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 02:58:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 2296 transitions. [2023-11-29 02:58:43,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-11-29 02:58:43,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:43,737 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] [2023-11-29 02:58:43,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:58:43,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:43,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:43,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1588337652, now seen corresponding path program 1 times [2023-11-29 02:58:43,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:43,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826311876] [2023-11-29 02:58:43,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:43,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:43,942 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 02:58:43,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:43,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826311876] [2023-11-29 02:58:43,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826311876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:43,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:43,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:43,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326409672] [2023-11-29 02:58:43,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:43,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:43,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:43,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:43,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:43,946 INFO L87 Difference]: Start difference. First operand 1343 states and 2296 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 02:58:43,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:43,994 INFO L93 Difference]: Finished difference Result 2927 states and 4906 transitions. [2023-11-29 02:58:43,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:43,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 200 [2023-11-29 02:58:43,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:44,005 INFO L225 Difference]: With dead ends: 2927 [2023-11-29 02:58:44,005 INFO L226 Difference]: Without dead ends: 2111 [2023-11-29 02:58:44,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:44,008 INFO L413 NwaCegarLoop]: 1307 mSDtfsCounter, 321 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:44,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 2582 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:44,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2023-11-29 02:58:44,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 2109. [2023-11-29 02:58:44,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 2108 states have (on average 1.6850094876660342) internal successors, (3552), 2108 states have internal predecessors, (3552), 0 states have call successors, (0), 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 02:58:44,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 3552 transitions. [2023-11-29 02:58:44,054 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 3552 transitions. Word has length 200 [2023-11-29 02:58:44,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:44,054 INFO L495 AbstractCegarLoop]: Abstraction has 2109 states and 3552 transitions. [2023-11-29 02:58:44,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 02:58:44,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 3552 transitions. [2023-11-29 02:58:44,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-11-29 02:58:44,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:44,059 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] [2023-11-29 02:58:44,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:58:44,059 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:44,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:44,060 INFO L85 PathProgramCache]: Analyzing trace with hash 646910929, now seen corresponding path program 1 times [2023-11-29 02:58:44,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:44,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909170273] [2023-11-29 02:58:44,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:44,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:44,210 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 02:58:44,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:44,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909170273] [2023-11-29 02:58:44,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909170273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:44,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:44,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:44,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301780529] [2023-11-29 02:58:44,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:44,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:44,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:44,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:44,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:44,213 INFO L87 Difference]: Start difference. First operand 2109 states and 3552 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 02:58:44,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:44,282 INFO L93 Difference]: Finished difference Result 5177 states and 8586 transitions. [2023-11-29 02:58:44,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:44,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 204 [2023-11-29 02:58:44,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:44,299 INFO L225 Difference]: With dead ends: 5177 [2023-11-29 02:58:44,299 INFO L226 Difference]: Without dead ends: 3595 [2023-11-29 02:58:44,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:44,303 INFO L413 NwaCegarLoop]: 1307 mSDtfsCounter, 313 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:44,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 2583 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:44,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2023-11-29 02:58:44,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3593. [2023-11-29 02:58:44,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3593 states, 3592 states have (on average 1.6625835189309577) internal successors, (5972), 3592 states have internal predecessors, (5972), 0 states have call successors, (0), 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 02:58:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 5972 transitions. [2023-11-29 02:58:44,381 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 5972 transitions. Word has length 204 [2023-11-29 02:58:44,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:44,382 INFO L495 AbstractCegarLoop]: Abstraction has 3593 states and 5972 transitions. [2023-11-29 02:58:44,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 02:58:44,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 5972 transitions. [2023-11-29 02:58:44,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 02:58:44,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:44,387 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] [2023-11-29 02:58:44,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:58:44,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:44,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:44,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1479277718, now seen corresponding path program 1 times [2023-11-29 02:58:44,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:44,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878649390] [2023-11-29 02:58:44,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:44,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:44,526 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 02:58:44,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:44,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878649390] [2023-11-29 02:58:44,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878649390] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:44,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:44,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:44,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585045277] [2023-11-29 02:58:44,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:44,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:44,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:44,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:44,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:44,530 INFO L87 Difference]: Start difference. First operand 3593 states and 5972 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 02:58:44,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:44,603 INFO L93 Difference]: Finished difference Result 9533 states and 15670 transitions. [2023-11-29 02:58:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:44,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 208 [2023-11-29 02:58:44,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:44,631 INFO L225 Difference]: With dead ends: 9533 [2023-11-29 02:58:44,631 INFO L226 Difference]: Without dead ends: 6467 [2023-11-29 02:58:44,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:44,636 INFO L413 NwaCegarLoop]: 1307 mSDtfsCounter, 305 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:44,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 2584 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6467 states. [2023-11-29 02:58:44,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6467 to 6465. [2023-11-29 02:58:44,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6465 states, 6464 states have (on average 1.6441831683168318) internal successors, (10628), 6464 states have internal predecessors, (10628), 0 states have call successors, (0), 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 02:58:44,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6465 states to 6465 states and 10628 transitions. [2023-11-29 02:58:44,789 INFO L78 Accepts]: Start accepts. Automaton has 6465 states and 10628 transitions. Word has length 208 [2023-11-29 02:58:44,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:44,790 INFO L495 AbstractCegarLoop]: Abstraction has 6465 states and 10628 transitions. [2023-11-29 02:58:44,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 02:58:44,790 INFO L276 IsEmpty]: Start isEmpty. Operand 6465 states and 10628 transitions. [2023-11-29 02:58:44,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 02:58:44,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:44,795 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] [2023-11-29 02:58:44,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 02:58:44,795 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:44,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:44,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1890289317, now seen corresponding path program 1 times [2023-11-29 02:58:44,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:44,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898571280] [2023-11-29 02:58:44,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:44,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:45,050 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 02:58:45,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:45,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898571280] [2023-11-29 02:58:45,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898571280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:45,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:45,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:58:45,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013121112] [2023-11-29 02:58:45,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:45,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:58:45,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:45,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:58:45,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:58:45,053 INFO L87 Difference]: Start difference. First operand 6465 states and 10628 transitions. Second operand has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 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 02:58:45,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:45,683 INFO L93 Difference]: Finished difference Result 39885 states and 65470 transitions. [2023-11-29 02:58:45,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:58:45,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2023-11-29 02:58:45,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:45,797 INFO L225 Difference]: With dead ends: 39885 [2023-11-29 02:58:45,797 INFO L226 Difference]: Without dead ends: 33891 [2023-11-29 02:58:45,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:58:45,815 INFO L413 NwaCegarLoop]: 1303 mSDtfsCounter, 4494 mSDsluCounter, 9942 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4494 SdHoareTripleChecker+Valid, 11245 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:45,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4494 Valid, 11245 Invalid, 149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:45,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33891 states. [2023-11-29 02:58:46,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33891 to 12064. [2023-11-29 02:58:46,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12064 states, 12063 states have (on average 1.6442841747492332) internal successors, (19835), 12063 states have internal predecessors, (19835), 0 states have call successors, (0), 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 02:58:46,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12064 states to 12064 states and 19835 transitions. [2023-11-29 02:58:46,323 INFO L78 Accepts]: Start accepts. Automaton has 12064 states and 19835 transitions. Word has length 212 [2023-11-29 02:58:46,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:46,324 INFO L495 AbstractCegarLoop]: Abstraction has 12064 states and 19835 transitions. [2023-11-29 02:58:46,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 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 02:58:46,324 INFO L276 IsEmpty]: Start isEmpty. Operand 12064 states and 19835 transitions. [2023-11-29 02:58:46,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-29 02:58:46,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:46,334 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] [2023-11-29 02:58:46,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 02:58:46,335 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:46,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:46,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1458953532, now seen corresponding path program 1 times [2023-11-29 02:58:46,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:46,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805667677] [2023-11-29 02:58:46,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:46,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:46,648 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 02:58:46,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:46,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805667677] [2023-11-29 02:58:46,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805667677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:46,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:46,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:58:46,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785892077] [2023-11-29 02:58:46,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:46,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:58:46,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:46,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:58:46,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:58:46,651 INFO L87 Difference]: Start difference. First operand 12064 states and 19835 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 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 02:58:46,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:46,842 INFO L93 Difference]: Finished difference Result 35495 states and 58283 transitions. [2023-11-29 02:58:46,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:58:46,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2023-11-29 02:58:46,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:46,878 INFO L225 Difference]: With dead ends: 35495 [2023-11-29 02:58:46,878 INFO L226 Difference]: Without dead ends: 23958 [2023-11-29 02:58:46,894 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 02:58:46,895 INFO L413 NwaCegarLoop]: 1306 mSDtfsCounter, 1057 mSDsluCounter, 2918 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:46,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 4224 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:46,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23958 states. [2023-11-29 02:58:47,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23958 to 17963. [2023-11-29 02:58:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17963 states, 17962 states have (on average 1.640964257877742) internal successors, (29475), 17962 states have internal predecessors, (29475), 0 states have call successors, (0), 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 02:58:47,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17963 states to 17963 states and 29475 transitions. [2023-11-29 02:58:47,250 INFO L78 Accepts]: Start accepts. Automaton has 17963 states and 29475 transitions. Word has length 213 [2023-11-29 02:58:47,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:47,251 INFO L495 AbstractCegarLoop]: Abstraction has 17963 states and 29475 transitions. [2023-11-29 02:58:47,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 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 02:58:47,252 INFO L276 IsEmpty]: Start isEmpty. Operand 17963 states and 29475 transitions. [2023-11-29 02:58:47,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 02:58:47,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:47,264 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] [2023-11-29 02:58:47,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 02:58:47,264 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:47,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:47,264 INFO L85 PathProgramCache]: Analyzing trace with hash -790637102, now seen corresponding path program 1 times [2023-11-29 02:58:47,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:47,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731761338] [2023-11-29 02:58:47,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:47,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:47,438 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 02:58:47,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:47,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731761338] [2023-11-29 02:58:47,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731761338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:47,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:47,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:47,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694928543] [2023-11-29 02:58:47,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:47,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:47,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:47,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:47,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:47,441 INFO L87 Difference]: Start difference. First operand 17963 states and 29475 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 02:58:47,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:47,648 INFO L93 Difference]: Finished difference Result 34687 states and 56854 transitions. [2023-11-29 02:58:47,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:47,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2023-11-29 02:58:47,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:47,705 INFO L225 Difference]: With dead ends: 34687 [2023-11-29 02:58:47,706 INFO L226 Difference]: Without dead ends: 25525 [2023-11-29 02:58:47,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:47,721 INFO L413 NwaCegarLoop]: 1469 mSDtfsCounter, 322 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2723 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:47,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 2723 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:47,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25525 states. [2023-11-29 02:58:48,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25525 to 25523. [2023-11-29 02:58:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25523 states, 25522 states have (on average 1.6350599482799153) internal successors, (41730), 25522 states have internal predecessors, (41730), 0 states have call successors, (0), 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 02:58:48,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25523 states to 25523 states and 41730 transitions. [2023-11-29 02:58:48,283 INFO L78 Accepts]: Start accepts. Automaton has 25523 states and 41730 transitions. Word has length 214 [2023-11-29 02:58:48,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:48,283 INFO L495 AbstractCegarLoop]: Abstraction has 25523 states and 41730 transitions. [2023-11-29 02:58:48,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 02:58:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 25523 states and 41730 transitions. [2023-11-29 02:58:48,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 02:58:48,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:48,291 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] [2023-11-29 02:58:48,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 02:58:48,292 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:48,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:48,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1621773826, now seen corresponding path program 1 times [2023-11-29 02:58:48,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:48,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706532263] [2023-11-29 02:58:48,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:48,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:48,480 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 02:58:48,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:48,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706532263] [2023-11-29 02:58:48,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706532263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:48,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:48,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:48,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568549155] [2023-11-29 02:58:48,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:48,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:48,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:48,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:48,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:48,482 INFO L87 Difference]: Start difference. First operand 25523 states and 41730 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 02:58:48,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:48,771 INFO L93 Difference]: Finished difference Result 49441 states and 80786 transitions. [2023-11-29 02:58:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:48,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2023-11-29 02:58:48,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:48,854 INFO L225 Difference]: With dead ends: 49441 [2023-11-29 02:58:48,855 INFO L226 Difference]: Without dead ends: 36467 [2023-11-29 02:58:48,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:48,875 INFO L413 NwaCegarLoop]: 1358 mSDtfsCounter, 306 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2614 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:48,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 2614 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:58:48,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36467 states. [2023-11-29 02:58:49,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36467 to 36465. [2023-11-29 02:58:49,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36465 states, 36464 states have (on average 1.6290587977182975) internal successors, (59402), 36464 states have internal predecessors, (59402), 0 states have call successors, (0), 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 02:58:49,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36465 states to 36465 states and 59402 transitions. [2023-11-29 02:58:49,428 INFO L78 Accepts]: Start accepts. Automaton has 36465 states and 59402 transitions. Word has length 214 [2023-11-29 02:58:49,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:49,429 INFO L495 AbstractCegarLoop]: Abstraction has 36465 states and 59402 transitions. [2023-11-29 02:58:49,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 02:58:49,429 INFO L276 IsEmpty]: Start isEmpty. Operand 36465 states and 59402 transitions. [2023-11-29 02:58:49,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 02:58:49,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:49,435 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] [2023-11-29 02:58:49,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 02:58:49,436 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:49,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:49,436 INFO L85 PathProgramCache]: Analyzing trace with hash 2049773352, now seen corresponding path program 1 times [2023-11-29 02:58:49,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:49,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638313968] [2023-11-29 02:58:49,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:49,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:49,580 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 02:58:49,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:49,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638313968] [2023-11-29 02:58:49,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638313968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:49,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:49,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:49,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835011186] [2023-11-29 02:58:49,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:49,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:49,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:49,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:49,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:49,583 INFO L87 Difference]: Start difference. First operand 36465 states and 59402 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 02:58:49,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:49,867 INFO L93 Difference]: Finished difference Result 68977 states and 112324 transitions. [2023-11-29 02:58:49,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:49,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2023-11-29 02:58:49,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:50,108 INFO L225 Difference]: With dead ends: 68977 [2023-11-29 02:58:50,108 INFO L226 Difference]: Without dead ends: 50523 [2023-11-29 02:58:50,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:50,158 INFO L413 NwaCegarLoop]: 1425 mSDtfsCounter, 314 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:50,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 2680 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:50,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50523 states. [2023-11-29 02:58:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50523 to 50521. [2023-11-29 02:58:50,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50521 states, 50520 states have (on average 1.6228820269200317) internal successors, (81988), 50520 states have internal predecessors, (81988), 0 states have call successors, (0), 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 02:58:50,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50521 states to 50521 states and 81988 transitions. [2023-11-29 02:58:50,800 INFO L78 Accepts]: Start accepts. Automaton has 50521 states and 81988 transitions. Word has length 214 [2023-11-29 02:58:50,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:50,801 INFO L495 AbstractCegarLoop]: Abstraction has 50521 states and 81988 transitions. [2023-11-29 02:58:50,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 02:58:50,801 INFO L276 IsEmpty]: Start isEmpty. Operand 50521 states and 81988 transitions. [2023-11-29 02:58:50,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 02:58:50,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:50,805 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] [2023-11-29 02:58:50,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 02:58:50,806 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:50,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:50,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1652622844, now seen corresponding path program 1 times [2023-11-29 02:58:50,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:50,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763313904] [2023-11-29 02:58:50,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:50,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:51,084 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 02:58:51,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:51,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763313904] [2023-11-29 02:58:51,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763313904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:51,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:51,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:51,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983449790] [2023-11-29 02:58:51,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:51,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:51,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:51,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:51,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:51,087 INFO L87 Difference]: Start difference. First operand 50521 states and 81988 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 02:58:51,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:51,318 INFO L93 Difference]: Finished difference Result 95831 states and 155484 transitions. [2023-11-29 02:58:51,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:51,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2023-11-29 02:58:51,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:51,382 INFO L225 Difference]: With dead ends: 95831 [2023-11-29 02:58:51,382 INFO L226 Difference]: Without dead ends: 69700 [2023-11-29 02:58:51,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:51,403 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 330 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:51,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 2789 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:51,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69700 states. [2023-11-29 02:58:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69700 to 69698. [2023-11-29 02:58:52,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69698 states, 69697 states have (on average 1.6166262536407592) internal successors, (112674), 69697 states have internal predecessors, (112674), 0 states have call successors, (0), 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 02:58:52,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69698 states to 69698 states and 112674 transitions. [2023-11-29 02:58:52,410 INFO L78 Accepts]: Start accepts. Automaton has 69698 states and 112674 transitions. Word has length 214 [2023-11-29 02:58:52,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:52,410 INFO L495 AbstractCegarLoop]: Abstraction has 69698 states and 112674 transitions. [2023-11-29 02:58:52,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 02:58:52,410 INFO L276 IsEmpty]: Start isEmpty. Operand 69698 states and 112674 transitions. [2023-11-29 02:58:52,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 02:58:52,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:52,415 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] [2023-11-29 02:58:52,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 02:58:52,415 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:52,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:52,416 INFO L85 PathProgramCache]: Analyzing trace with hash -828137562, now seen corresponding path program 1 times [2023-11-29 02:58:52,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:52,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720911015] [2023-11-29 02:58:52,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:52,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:52,715 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 02:58:52,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:52,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720911015] [2023-11-29 02:58:52,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720911015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:52,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:52,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:58:52,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796918626] [2023-11-29 02:58:52,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:52,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:58:52,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:52,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:58:52,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:52,717 INFO L87 Difference]: Start difference. First operand 69698 states and 112674 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 02:58:53,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:53,211 INFO L93 Difference]: Finished difference Result 153053 states and 246883 transitions. [2023-11-29 02:58:53,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:58:53,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2023-11-29 02:58:53,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:53,344 INFO L225 Difference]: With dead ends: 153053 [2023-11-29 02:58:53,344 INFO L226 Difference]: Without dead ends: 105047 [2023-11-29 02:58:53,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:58:53,377 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 338 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:53,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 2850 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:53,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105047 states. [2023-11-29 02:58:54,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105047 to 105045. [2023-11-29 02:58:54,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105045 states, 105044 states have (on average 1.6059080004569515) internal successors, (168691), 105044 states have internal predecessors, (168691), 0 states have call successors, (0), 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 02:58:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105045 states to 105045 states and 168691 transitions. [2023-11-29 02:58:54,795 INFO L78 Accepts]: Start accepts. Automaton has 105045 states and 168691 transitions. Word has length 214 [2023-11-29 02:58:54,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:54,795 INFO L495 AbstractCegarLoop]: Abstraction has 105045 states and 168691 transitions. [2023-11-29 02:58:54,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 02:58:54,796 INFO L276 IsEmpty]: Start isEmpty. Operand 105045 states and 168691 transitions. [2023-11-29 02:58:54,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-11-29 02:58:54,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:54,797 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] [2023-11-29 02:58:54,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 02:58:54,798 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:54,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:54,798 INFO L85 PathProgramCache]: Analyzing trace with hash -877545096, now seen corresponding path program 1 times [2023-11-29 02:58:54,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:54,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493902354] [2023-11-29 02:58:54,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:54,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:55,804 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 02:58:55,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:55,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493902354] [2023-11-29 02:58:55,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493902354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:55,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:55,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:58:55,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601295614] [2023-11-29 02:58:55,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:55,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:58:55,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:55,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:58:55,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:58:55,806 INFO L87 Difference]: Start difference. First operand 105045 states and 168691 transitions. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 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 02:58:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:56,395 INFO L93 Difference]: Finished difference Result 173725 states and 277686 transitions. [2023-11-29 02:58:56,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:58:56,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 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 223 [2023-11-29 02:58:56,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:58:56,591 INFO L225 Difference]: With dead ends: 173725 [2023-11-29 02:58:56,591 INFO L226 Difference]: Without dead ends: 173723 [2023-11-29 02:58:56,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:58:56,621 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 702 mSDsluCounter, 4161 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 5706 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:58:56,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 5706 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:58:56,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173723 states. [2023-11-29 02:58:58,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173723 to 106013. [2023-11-29 02:58:58,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106013 states, 106012 states have (on average 1.5980832358600914) internal successors, (169416), 106012 states have internal predecessors, (169416), 0 states have call successors, (0), 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 02:58:58,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106013 states to 106013 states and 169416 transitions. [2023-11-29 02:58:58,505 INFO L78 Accepts]: Start accepts. Automaton has 106013 states and 169416 transitions. Word has length 223 [2023-11-29 02:58:58,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:58:58,505 INFO L495 AbstractCegarLoop]: Abstraction has 106013 states and 169416 transitions. [2023-11-29 02:58:58,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 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 02:58:58,506 INFO L276 IsEmpty]: Start isEmpty. Operand 106013 states and 169416 transitions. [2023-11-29 02:58:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-29 02:58:58,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:58:58,516 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:58,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 02:58:58,516 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:58:58,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:58,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1852927549, now seen corresponding path program 1 times [2023-11-29 02:58:58,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:58,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101549149] [2023-11-29 02:58:58,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:58,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:59,141 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 02:58:59,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:59,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101549149] [2023-11-29 02:58:59,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101549149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:59,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:59,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:58:59,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167658695] [2023-11-29 02:58:59,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:59,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:58:59,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:59,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:58:59,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:58:59,144 INFO L87 Difference]: Start difference. First operand 106013 states and 169416 transitions. Second operand has 7 states, 7 states have (on average 36.0) internal successors, (252), 7 states have internal predecessors, (252), 0 states have call successors, (0), 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 02:59:00,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:00,652 INFO L93 Difference]: Finished difference Result 437290 states and 698884 transitions. [2023-11-29 02:59:00,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:59:00,653 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.0) internal successors, (252), 7 states have internal predecessors, (252), 0 states have call successors, (0), 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 269 [2023-11-29 02:59:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:01,118 INFO L225 Difference]: With dead ends: 437290 [2023-11-29 02:59:01,118 INFO L226 Difference]: Without dead ends: 368006 [2023-11-29 02:59:01,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:59:01,181 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 3503 mSDsluCounter, 6980 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3503 SdHoareTripleChecker+Valid, 8646 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:01,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3503 Valid, 8646 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:59:01,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368006 states. [2023-11-29 02:59:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368006 to 184645. [2023-11-29 02:59:04,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184645 states, 184644 states have (on average 1.594906956088473) internal successors, (294490), 184644 states have internal predecessors, (294490), 0 states have call successors, (0), 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 02:59:04,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184645 states to 184645 states and 294490 transitions. [2023-11-29 02:59:04,865 INFO L78 Accepts]: Start accepts. Automaton has 184645 states and 294490 transitions. Word has length 269 [2023-11-29 02:59:04,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:04,865 INFO L495 AbstractCegarLoop]: Abstraction has 184645 states and 294490 transitions. [2023-11-29 02:59:04,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.0) internal successors, (252), 7 states have internal predecessors, (252), 0 states have call successors, (0), 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 02:59:04,865 INFO L276 IsEmpty]: Start isEmpty. Operand 184645 states and 294490 transitions. [2023-11-29 02:59:04,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-29 02:59:04,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:04,873 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:04,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 02:59:04,874 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:59:04,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:04,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1610903023, now seen corresponding path program 1 times [2023-11-29 02:59:04,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:04,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256630057] [2023-11-29 02:59:04,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:04,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:59:05,271 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 02:59:05,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:05,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256630057] [2023-11-29 02:59:05,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256630057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:59:05,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:59:05,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:59:05,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325110203] [2023-11-29 02:59:05,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:59:05,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:59:05,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:05,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:59:05,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:59:05,273 INFO L87 Difference]: Start difference. First operand 184645 states and 294490 transitions. Second operand has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 0 states have call successors, (0), 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 02:59:06,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:06,950 INFO L93 Difference]: Finished difference Result 490196 states and 783164 transitions. [2023-11-29 02:59:06,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:59:06,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 0 states have call successors, (0), 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 269 [2023-11-29 02:59:06,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:07,515 INFO L225 Difference]: With dead ends: 490196 [2023-11-29 02:59:07,515 INFO L226 Difference]: Without dead ends: 420912 [2023-11-29 02:59:07,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:59:07,596 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 3369 mSDsluCounter, 6097 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3369 SdHoareTripleChecker+Valid, 7763 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:07,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3369 Valid, 7763 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:59:08,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420912 states. [2023-11-29 02:59:11,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420912 to 280197. [2023-11-29 02:59:11,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280197 states, 280196 states have (on average 1.5937557995117704) internal successors, (446564), 280196 states have internal predecessors, (446564), 0 states have call successors, (0), 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 02:59:12,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280197 states to 280197 states and 446564 transitions. [2023-11-29 02:59:12,715 INFO L78 Accepts]: Start accepts. Automaton has 280197 states and 446564 transitions. Word has length 269 [2023-11-29 02:59:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:12,715 INFO L495 AbstractCegarLoop]: Abstraction has 280197 states and 446564 transitions. [2023-11-29 02:59:12,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 0 states have call successors, (0), 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 02:59:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 280197 states and 446564 transitions. [2023-11-29 02:59:12,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-29 02:59:12,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:12,723 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:12,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 02:59:12,723 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:59:12,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:12,723 INFO L85 PathProgramCache]: Analyzing trace with hash 987482905, now seen corresponding path program 1 times [2023-11-29 02:59:12,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:12,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528866069] [2023-11-29 02:59:12,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:12,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:59:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 02:59:13,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:13,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528866069] [2023-11-29 02:59:13,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528866069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:59:13,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:59:13,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:59:13,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719751894] [2023-11-29 02:59:13,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:59:13,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:59:13,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:13,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:59:13,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:59:13,003 INFO L87 Difference]: Start difference. First operand 280197 states and 446564 transitions. Second operand has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 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 02:59:14,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:14,947 INFO L93 Difference]: Finished difference Result 529316 states and 845513 transitions. [2023-11-29 02:59:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:59:14,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 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 269 [2023-11-29 02:59:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:15,623 INFO L225 Difference]: With dead ends: 529316 [2023-11-29 02:59:15,623 INFO L226 Difference]: Without dead ends: 460032 [2023-11-29 02:59:15,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:59:15,736 INFO L413 NwaCegarLoop]: 1668 mSDtfsCounter, 3042 mSDsluCounter, 7338 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3042 SdHoareTripleChecker+Valid, 9006 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:15,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3042 Valid, 9006 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:59:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460032 states. [2023-11-29 02:59:20,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460032 to 340919. [2023-11-29 02:59:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340919 states, 340918 states have (on average 1.5937615496981679) internal successors, (543342), 340918 states have internal predecessors, (543342), 0 states have call successors, (0), 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 02:59:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340919 states to 340919 states and 543342 transitions. [2023-11-29 02:59:21,283 INFO L78 Accepts]: Start accepts. Automaton has 340919 states and 543342 transitions. Word has length 269 [2023-11-29 02:59:21,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:21,283 INFO L495 AbstractCegarLoop]: Abstraction has 340919 states and 543342 transitions. [2023-11-29 02:59:21,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 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 02:59:21,283 INFO L276 IsEmpty]: Start isEmpty. Operand 340919 states and 543342 transitions. [2023-11-29 02:59:21,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-29 02:59:21,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:21,292 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:21,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 02:59:21,292 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:59:21,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:21,293 INFO L85 PathProgramCache]: Analyzing trace with hash 590332397, now seen corresponding path program 1 times [2023-11-29 02:59:21,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:21,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472359978] [2023-11-29 02:59:21,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:21,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:59:21,673 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 02:59:21,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:21,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472359978] [2023-11-29 02:59:21,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472359978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:59:21,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:59:21,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:59:21,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064245316] [2023-11-29 02:59:21,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:59:21,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:59:21,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:21,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:59:21,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:59:21,676 INFO L87 Difference]: Start difference. First operand 340919 states and 543342 transitions. Second operand has 7 states, 7 states have (on average 37.142857142857146) internal successors, (260), 7 states have internal predecessors, (260), 0 states have call successors, (0), 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 02:59:24,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:24,120 INFO L93 Difference]: Finished difference Result 590154 states and 942545 transitions. [2023-11-29 02:59:24,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:59:24,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.142857142857146) internal successors, (260), 7 states have internal predecessors, (260), 0 states have call successors, (0), 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 269 [2023-11-29 02:59:24,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:24,865 INFO L225 Difference]: With dead ends: 590154 [2023-11-29 02:59:24,865 INFO L226 Difference]: Without dead ends: 520870 [2023-11-29 02:59:24,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:59:24,965 INFO L413 NwaCegarLoop]: 1671 mSDtfsCounter, 3030 mSDsluCounter, 6920 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3030 SdHoareTripleChecker+Valid, 8591 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:24,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3030 Valid, 8591 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:59:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520870 states. [2023-11-29 02:59:29,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520870 to 401641. [2023-11-29 02:59:30,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401641 states, 401640 states have (on average 1.5937655611990837) internal successors, (640120), 401640 states have internal predecessors, (640120), 0 states have call successors, (0), 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 02:59:31,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401641 states to 401641 states and 640120 transitions. [2023-11-29 02:59:31,571 INFO L78 Accepts]: Start accepts. Automaton has 401641 states and 640120 transitions. Word has length 269 [2023-11-29 02:59:31,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:31,572 INFO L495 AbstractCegarLoop]: Abstraction has 401641 states and 640120 transitions. [2023-11-29 02:59:31,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.142857142857146) internal successors, (260), 7 states have internal predecessors, (260), 0 states have call successors, (0), 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 02:59:31,572 INFO L276 IsEmpty]: Start isEmpty. Operand 401641 states and 640120 transitions. [2023-11-29 02:59:31,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-29 02:59:31,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:31,582 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:31,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 02:59:31,582 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:59:31,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:31,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1890428009, now seen corresponding path program 1 times [2023-11-29 02:59:31,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:31,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359352139] [2023-11-29 02:59:31,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:31,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:59:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 02:59:31,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:31,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359352139] [2023-11-29 02:59:31,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359352139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:59:31,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:59:31,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:59:31,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231838546] [2023-11-29 02:59:31,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:59:31,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:59:31,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:31,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:59:31,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:59:31,913 INFO L87 Difference]: Start difference. First operand 401641 states and 640120 transitions. Second operand has 7 states, 7 states have (on average 38.285714285714285) internal successors, (268), 7 states have internal predecessors, (268), 0 states have call successors, (0), 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 02:59:33,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:33,955 INFO L93 Difference]: Finished difference Result 603405 states and 963602 transitions. [2023-11-29 02:59:33,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:59:33,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.285714285714285) internal successors, (268), 7 states have internal predecessors, (268), 0 states have call successors, (0), 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 269 [2023-11-29 02:59:33,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:35,112 INFO L225 Difference]: With dead ends: 603405 [2023-11-29 02:59:35,113 INFO L226 Difference]: Without dead ends: 560851 [2023-11-29 02:59:35,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:59:35,187 INFO L413 NwaCegarLoop]: 1650 mSDtfsCounter, 3123 mSDsluCounter, 6488 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3123 SdHoareTripleChecker+Valid, 8138 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:35,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3123 Valid, 8138 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:59:35,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560851 states. [2023-11-29 02:59:40,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560851 to 443593. [2023-11-29 02:59:40,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443593 states, 443592 states have (on average 1.5941631048350737) internal successors, (707158), 443592 states have internal predecessors, (707158), 0 states have call successors, (0), 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 02:59:41,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443593 states to 443593 states and 707158 transitions. [2023-11-29 02:59:41,882 INFO L78 Accepts]: Start accepts. Automaton has 443593 states and 707158 transitions. Word has length 269 [2023-11-29 02:59:41,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:41,883 INFO L495 AbstractCegarLoop]: Abstraction has 443593 states and 707158 transitions. [2023-11-29 02:59:41,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.285714285714285) internal successors, (268), 7 states have internal predecessors, (268), 0 states have call successors, (0), 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 02:59:41,883 INFO L276 IsEmpty]: Start isEmpty. Operand 443593 states and 707158 transitions. [2023-11-29 02:59:41,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-11-29 02:59:41,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:41,898 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:41,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 02:59:41,898 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:59:41,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:41,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1454654080, now seen corresponding path program 1 times [2023-11-29 02:59:41,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:41,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458063901] [2023-11-29 02:59:41,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:41,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:59:42,247 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 02:59:42,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:42,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458063901] [2023-11-29 02:59:42,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458063901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:59:42,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:59:42,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:59:42,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331777963] [2023-11-29 02:59:42,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:59:42,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:59:42,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:42,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:59:42,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:59:42,250 INFO L87 Difference]: Start difference. First operand 443593 states and 707158 transitions. Second operand has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 0 states have call successors, (0), 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 02:59:44,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:44,199 INFO L93 Difference]: Finished difference Result 612296 states and 977395 transitions. [2023-11-29 02:59:44,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:59:44,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 0 states have call successors, (0), 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 270 [2023-11-29 02:59:44,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:44,869 INFO L225 Difference]: With dead ends: 612296 [2023-11-29 02:59:44,869 INFO L226 Difference]: Without dead ends: 527790 [2023-11-29 02:59:44,957 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 02:59:44,958 INFO L413 NwaCegarLoop]: 1662 mSDtfsCounter, 627 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 3320 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:44,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 3320 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:59:45,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527790 states. [2023-11-29 02:59:50,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527790 to 490698. [2023-11-29 02:59:50,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490698 states, 490697 states have (on average 1.5943565988787378) internal successors, (782346), 490697 states have internal predecessors, (782346), 0 states have call successors, (0), 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 02:59:51,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490698 states to 490698 states and 782346 transitions. [2023-11-29 02:59:51,617 INFO L78 Accepts]: Start accepts. Automaton has 490698 states and 782346 transitions. Word has length 270 [2023-11-29 02:59:51,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:59:51,617 INFO L495 AbstractCegarLoop]: Abstraction has 490698 states and 782346 transitions. [2023-11-29 02:59:51,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 0 states have call successors, (0), 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 02:59:51,618 INFO L276 IsEmpty]: Start isEmpty. Operand 490698 states and 782346 transitions. [2023-11-29 02:59:51,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-11-29 02:59:51,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:59:51,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:51,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 02:59:51,628 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:59:51,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:59:51,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1333338240, now seen corresponding path program 1 times [2023-11-29 02:59:51,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:59:51,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339888708] [2023-11-29 02:59:51,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:59:51,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:59:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:59:51,805 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 02:59:51,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:59:51,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339888708] [2023-11-29 02:59:51,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339888708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:59:51,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:59:51,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:59:51,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167733515] [2023-11-29 02:59:51,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:59:51,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:59:51,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:59:51,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:59:51,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:59:51,807 INFO L87 Difference]: Start difference. First operand 490698 states and 782346 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 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 02:59:55,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:59:55,242 INFO L93 Difference]: Finished difference Result 1006658 states and 1606362 transitions. [2023-11-29 02:59:55,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:59:55,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 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 270 [2023-11-29 02:59:55,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:59:56,857 INFO L225 Difference]: With dead ends: 1006658 [2023-11-29 02:59:56,857 INFO L226 Difference]: Without dead ends: 789420 [2023-11-29 02:59:56,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:59:56,996 INFO L413 NwaCegarLoop]: 1290 mSDtfsCounter, 296 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:59:56,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 2546 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:59:57,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789420 states. [2023-11-29 03:00:05,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789420 to 788583. [2023-11-29 03:00:05,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788583 states, 788582 states have (on average 1.593815227839337) internal successors, (1256854), 788582 states have internal predecessors, (1256854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)