./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 680347fc0ab3969916196edd845410ec8bd6ad683a6867b166f5af5e8c328a99 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:22:38,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:22:38,217 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:22:38,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:22:38,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:22:38,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:22:38,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:22:38,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:22:38,264 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:22:38,265 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:22:38,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:22:38,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:22:38,267 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:22:38,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:22:38,268 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:22:38,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:22:38,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:22:38,272 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:22:38,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:22:38,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:22:38,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:22:38,277 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:22:38,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:22:38,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:22:38,279 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:22:38,279 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:22:38,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:22:38,280 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:22:38,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:22:38,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:22:38,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:22:38,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:22:38,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:22:38,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:22:38,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:22:38,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:22:38,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:22:38,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:22:38,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:22:38,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:22:38,287 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:22:38,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:22:38,288 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_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 680347fc0ab3969916196edd845410ec8bd6ad683a6867b166f5af5e8c328a99 [2024-11-08 17:22:38,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:22:38,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:22:38,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:22:38,770 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:22:38,771 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:22:38,772 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label09.c Unable to find full path for "g++" [2024-11-08 17:22:41,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:22:42,136 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:22:42,138 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label09.c [2024-11-08 17:22:42,201 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/data/a686a62cb/f7980d11039f4cd1b47370a043d1bf95/FLAG2a168aa64 [2024-11-08 17:22:42,458 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/data/a686a62cb/f7980d11039f4cd1b47370a043d1bf95 [2024-11-08 17:22:42,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:22:42,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:22:42,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:22:42,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:22:42,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:22:42,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:22:42" (1/1) ... [2024-11-08 17:22:42,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51af01a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:42, skipping insertion in model container [2024-11-08 17:22:42,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:22:42" (1/1) ... [2024-11-08 17:22:42,718 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:22:43,375 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label09.c[20426,20439] [2024-11-08 17:22:43,482 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label09.c[28174,28187] [2024-11-08 17:22:44,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:22:44,724 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:22:44,844 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label09.c[20426,20439] [2024-11-08 17:22:44,862 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label09.c[28174,28187] [2024-11-08 17:22:45,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:22:45,649 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:22:45,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45 WrapperNode [2024-11-08 17:22:45,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:22:45,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:22:45,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:22:45,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:22:45,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:45,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:46,240 INFO L138 Inliner]: procedures = 38, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5219 [2024-11-08 17:22:46,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:22:46,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:22:46,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:22:46,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:22:46,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:46,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:46,445 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:46,634 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 17:22:46,634 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:46,635 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:46,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:46,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:46,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:46,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:47,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:22:47,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:22:47,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:22:47,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:22:47,033 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (1/1) ... [2024-11-08 17:22:47,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:22:47,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:22:47,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:22:47,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30434090-e99f-4a16-a1d0-e4581278ee10/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:22:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:22:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:22:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:22:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:22:47,330 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:22:47,334 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:22:54,959 INFO L? ?]: Removed 755 outVars from TransFormulas that were not future-live. [2024-11-08 17:22:54,959 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:22:55,018 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:22:55,022 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:22:55,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:22:55 BoogieIcfgContainer [2024-11-08 17:22:55,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:22:55,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:22:55,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:22:55,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:22:55,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:22:42" (1/3) ... [2024-11-08 17:22:55,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acd87b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:22:55, skipping insertion in model container [2024-11-08 17:22:55,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:22:45" (2/3) ... [2024-11-08 17:22:55,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acd87b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:22:55, skipping insertion in model container [2024-11-08 17:22:55,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:22:55" (3/3) ... [2024-11-08 17:22:55,039 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label09.c [2024-11-08 17:22:55,064 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:22:55,064 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:22:55,179 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:22:55,188 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@57f6d88d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:22:55,188 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:22:55,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 931 states, 928 states have (on average 1.9030172413793103) internal successors, (1766), 930 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:22:55,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 17:22:55,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:22:55,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:22:55,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:22:55,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:22:55,228 INFO L85 PathProgramCache]: Analyzing trace with hash -691461076, now seen corresponding path program 1 times [2024-11-08 17:22:55,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:22:55,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748652296] [2024-11-08 17:22:55,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:22:55,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:22:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:22:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:22:55,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:22:55,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748652296] [2024-11-08 17:22:55,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748652296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:22:55,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:22:55,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:22:55,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310938623] [2024-11-08 17:22:55,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:22:55,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:22:55,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:22:55,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:22:55,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:22:55,793 INFO L87 Difference]: Start difference. First operand has 931 states, 928 states have (on average 1.9030172413793103) internal successors, (1766), 930 states have internal predecessors, (1766), 0 states have call successors, (0), 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 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:22:55,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:22:55,950 INFO L93 Difference]: Finished difference Result 1806 states and 3424 transitions. [2024-11-08 17:22:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:22:55,957 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-08 17:22:55,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:22:55,989 INFO L225 Difference]: With dead ends: 1806 [2024-11-08 17:22:55,992 INFO L226 Difference]: Without dead ends: 865 [2024-11-08 17:22:56,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:22:56,012 INFO L432 NwaCegarLoop]: 1701 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:22:56,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:22:56,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-08 17:22:56,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-08 17:22:56,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 863 states have (on average 1.8922363847045192) internal successors, (1633), 864 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:22:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1633 transitions. [2024-11-08 17:22:56,162 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1633 transitions. Word has length 29 [2024-11-08 17:22:56,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:22:56,165 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1633 transitions. [2024-11-08 17:22:56,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:22:56,165 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1633 transitions. [2024-11-08 17:22:56,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 17:22:56,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:22:56,170 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:22:56,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:22:56,174 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:22:56,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:22:56,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1798067886, now seen corresponding path program 1 times [2024-11-08 17:22:56,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:22:56,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740195107] [2024-11-08 17:22:56,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:22:56,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:22:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:22:56,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:22:56,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:22:56,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740195107] [2024-11-08 17:22:56,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740195107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:22:56,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:22:56,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:22:56,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262532695] [2024-11-08 17:22:56,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:22:56,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:22:56,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:22:56,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:22:56,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:22:56,580 INFO L87 Difference]: Start difference. First operand 865 states and 1633 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:22:56,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:22:56,858 INFO L93 Difference]: Finished difference Result 924 states and 1725 transitions. [2024-11-08 17:22:56,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:22:56,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-08 17:22:56,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:22:56,866 INFO L225 Difference]: With dead ends: 924 [2024-11-08 17:22:56,867 INFO L226 Difference]: Without dead ends: 865 [2024-11-08 17:22:56,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:22:56,870 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 0 mSDsluCounter, 4838 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6469 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:22:56,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6469 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:22:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-08 17:22:56,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-11-08 17:22:56,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 863 states have (on average 1.8342989571263035) internal successors, (1583), 864 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:22:56,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1583 transitions. [2024-11-08 17:22:56,910 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1583 transitions. Word has length 29 [2024-11-08 17:22:56,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:22:56,911 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1583 transitions. [2024-11-08 17:22:56,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:22:56,912 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1583 transitions. [2024-11-08 17:22:56,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 17:22:56,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:22:56,920 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:22:56,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:22:56,921 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:22:56,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:22:56,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1066926848, now seen corresponding path program 1 times [2024-11-08 17:22:56,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:22:56,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591834430] [2024-11-08 17:22:56,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:22:56,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:22:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:22:57,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:22:57,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:22:57,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591834430] [2024-11-08 17:22:57,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591834430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:22:57,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:22:57,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:22:57,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682566688] [2024-11-08 17:22:57,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:22:57,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:22:57,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:22:57,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:22:57,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:22:57,195 INFO L87 Difference]: Start difference. First operand 865 states and 1583 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:03,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:03,119 INFO L93 Difference]: Finished difference Result 2369 states and 4456 transitions. [2024-11-08 17:23:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:23:03,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-08 17:23:03,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:03,135 INFO L225 Difference]: With dead ends: 2369 [2024-11-08 17:23:03,136 INFO L226 Difference]: Without dead ends: 1616 [2024-11-08 17:23:03,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:03,139 INFO L432 NwaCegarLoop]: 612 mSDtfsCounter, 878 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:03,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 619 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-08 17:23:03,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-08 17:23:03,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1616. [2024-11-08 17:23:03,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1614 states have (on average 1.587360594795539) internal successors, (2562), 1615 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:03,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2562 transitions. [2024-11-08 17:23:03,195 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2562 transitions. Word has length 67 [2024-11-08 17:23:03,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:03,196 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2562 transitions. [2024-11-08 17:23:03,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:03,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2562 transitions. [2024-11-08 17:23:03,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 17:23:03,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:03,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:23:03,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:23:03,203 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:03,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:03,204 INFO L85 PathProgramCache]: Analyzing trace with hash 155952879, now seen corresponding path program 1 times [2024-11-08 17:23:03,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:03,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030409343] [2024-11-08 17:23:03,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:03,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:23:03,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:03,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030409343] [2024-11-08 17:23:03,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030409343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:03,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:03,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:23:03,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959509132] [2024-11-08 17:23:03,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:03,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:23:03,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:03,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:23:03,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:23:03,651 INFO L87 Difference]: Start difference. First operand 1616 states and 2562 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:04,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:04,422 INFO L93 Difference]: Finished difference Result 2386 states and 3794 transitions. [2024-11-08 17:23:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:23:04,423 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-08 17:23:04,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:04,437 INFO L225 Difference]: With dead ends: 2386 [2024-11-08 17:23:04,437 INFO L226 Difference]: Without dead ends: 2331 [2024-11-08 17:23:04,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-08 17:23:04,444 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 11516 mSDsluCounter, 3602 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11516 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:04,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11516 Valid, 5181 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:23:04,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2024-11-08 17:23:04,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 1669. [2024-11-08 17:23:04,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1667 states have (on average 1.5878824235152968) internal successors, (2647), 1668 states have internal predecessors, (2647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:04,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2647 transitions. [2024-11-08 17:23:04,507 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2647 transitions. Word has length 78 [2024-11-08 17:23:04,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:04,508 INFO L471 AbstractCegarLoop]: Abstraction has 1669 states and 2647 transitions. [2024-11-08 17:23:04,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:04,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2647 transitions. [2024-11-08 17:23:04,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 17:23:04,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:04,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:23:04,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:23:04,515 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:04,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:04,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1868830113, now seen corresponding path program 1 times [2024-11-08 17:23:04,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:04,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048862757] [2024-11-08 17:23:04,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:04,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:04,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:23:04,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:04,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048862757] [2024-11-08 17:23:04,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048862757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:04,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:04,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:23:04,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085795151] [2024-11-08 17:23:04,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:04,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:23:04,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:04,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:23:04,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:04,699 INFO L87 Difference]: Start difference. First operand 1669 states and 2647 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:04,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:04,761 INFO L93 Difference]: Finished difference Result 1874 states and 2974 transitions. [2024-11-08 17:23:04,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:23:04,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-08 17:23:04,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:04,780 INFO L225 Difference]: With dead ends: 1874 [2024-11-08 17:23:04,780 INFO L226 Difference]: Without dead ends: 1766 [2024-11-08 17:23:04,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:04,786 INFO L432 NwaCegarLoop]: 1581 mSDtfsCounter, 1498 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:04,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1664 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:23:04,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-08 17:23:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1764. [2024-11-08 17:23:04,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1762 states have (on average 1.5874006810442678) internal successors, (2797), 1763 states have internal predecessors, (2797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:04,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2797 transitions. [2024-11-08 17:23:04,905 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2797 transitions. Word has length 80 [2024-11-08 17:23:04,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:04,906 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2797 transitions. [2024-11-08 17:23:04,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:04,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2797 transitions. [2024-11-08 17:23:04,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 17:23:04,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:04,911 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:23:04,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:23:04,912 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:04,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:04,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1802336601, now seen corresponding path program 1 times [2024-11-08 17:23:04,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:04,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892710157] [2024-11-08 17:23:04,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:04,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:23:05,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:05,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892710157] [2024-11-08 17:23:05,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892710157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:05,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:05,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:23:05,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616123977] [2024-11-08 17:23:05,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:05,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:23:05,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:05,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:23:05,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:23:05,632 INFO L87 Difference]: Start difference. First operand 1764 states and 2797 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:06,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:06,339 INFO L93 Difference]: Finished difference Result 1969 states and 3121 transitions. [2024-11-08 17:23:06,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:23:06,343 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-08 17:23:06,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:06,353 INFO L225 Difference]: With dead ends: 1969 [2024-11-08 17:23:06,354 INFO L226 Difference]: Without dead ends: 1766 [2024-11-08 17:23:06,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:23:06,356 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 9054 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9054 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:06,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9054 Valid, 2084 Invalid, 115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:23:06,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-08 17:23:06,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1764. [2024-11-08 17:23:06,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1762 states have (on average 1.5862656072644723) internal successors, (2795), 1763 states have internal predecessors, (2795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:06,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2795 transitions. [2024-11-08 17:23:06,411 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2795 transitions. Word has length 80 [2024-11-08 17:23:06,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:06,412 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2795 transitions. [2024-11-08 17:23:06,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:06,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2795 transitions. [2024-11-08 17:23:06,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 17:23:06,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:06,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:23:06,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:23:06,414 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:06,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:06,415 INFO L85 PathProgramCache]: Analyzing trace with hash -452582696, now seen corresponding path program 1 times [2024-11-08 17:23:06,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:06,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142268542] [2024-11-08 17:23:06,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:06,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:06,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:23:06,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:06,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142268542] [2024-11-08 17:23:06,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142268542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:06,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:06,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:23:06,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096712066] [2024-11-08 17:23:06,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:06,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:23:06,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:06,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:23:06,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:23:06,927 INFO L87 Difference]: Start difference. First operand 1764 states and 2795 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:07,070 INFO L93 Difference]: Finished difference Result 1772 states and 2804 transitions. [2024-11-08 17:23:07,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:23:07,071 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-08 17:23:07,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:07,079 INFO L225 Difference]: With dead ends: 1772 [2024-11-08 17:23:07,079 INFO L226 Difference]: Without dead ends: 1770 [2024-11-08 17:23:07,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:23:07,082 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 0 mSDsluCounter, 9449 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11026 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:07,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11026 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:23:07,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-11-08 17:23:07,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1770. [2024-11-08 17:23:07,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1768 states have (on average 1.583710407239819) internal successors, (2800), 1769 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2800 transitions. [2024-11-08 17:23:07,139 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2800 transitions. Word has length 81 [2024-11-08 17:23:07,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:07,140 INFO L471 AbstractCegarLoop]: Abstraction has 1770 states and 2800 transitions. [2024-11-08 17:23:07,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2800 transitions. [2024-11-08 17:23:07,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 17:23:07,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:07,142 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:23:07,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:23:07,143 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:07,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:07,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1418268327, now seen corresponding path program 1 times [2024-11-08 17:23:07,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:07,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5429232] [2024-11-08 17:23:07,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:07,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:23:07,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:07,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5429232] [2024-11-08 17:23:07,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5429232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:07,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:07,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:23:07,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857069637] [2024-11-08 17:23:07,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:07,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:23:07,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:07,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:23:07,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:07,246 INFO L87 Difference]: Start difference. First operand 1770 states and 2800 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:07,308 INFO L93 Difference]: Finished difference Result 1993 states and 3146 transitions. [2024-11-08 17:23:07,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:23:07,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-08 17:23:07,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:07,317 INFO L225 Difference]: With dead ends: 1993 [2024-11-08 17:23:07,318 INFO L226 Difference]: Without dead ends: 1879 [2024-11-08 17:23:07,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:07,320 INFO L432 NwaCegarLoop]: 1655 mSDtfsCounter, 1516 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:07,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1744 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:23:07,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2024-11-08 17:23:07,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1877. [2024-11-08 17:23:07,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1875 states have (on average 1.5808) internal successors, (2964), 1876 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2964 transitions. [2024-11-08 17:23:07,383 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2964 transitions. Word has length 82 [2024-11-08 17:23:07,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:07,384 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2964 transitions. [2024-11-08 17:23:07,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2964 transitions. [2024-11-08 17:23:07,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 17:23:07,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:07,386 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:23:07,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:23:07,386 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:07,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:07,387 INFO L85 PathProgramCache]: Analyzing trace with hash -934629465, now seen corresponding path program 1 times [2024-11-08 17:23:07,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:07,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12890317] [2024-11-08 17:23:07,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:07,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:23:07,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:07,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12890317] [2024-11-08 17:23:07,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12890317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:07,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:07,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:23:07,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674366434] [2024-11-08 17:23:07,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:07,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:23:07,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:07,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:23:07,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:07,488 INFO L87 Difference]: Start difference. First operand 1877 states and 2964 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:07,554 INFO L93 Difference]: Finished difference Result 2479 states and 3896 transitions. [2024-11-08 17:23:07,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:23:07,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-08 17:23:07,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:07,565 INFO L225 Difference]: With dead ends: 2479 [2024-11-08 17:23:07,565 INFO L226 Difference]: Without dead ends: 2166 [2024-11-08 17:23:07,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:07,568 INFO L432 NwaCegarLoop]: 1657 mSDtfsCounter, 1514 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:07,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:23:07,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2024-11-08 17:23:07,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 2164. [2024-11-08 17:23:07,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2162 states have (on average 1.5735430157261794) internal successors, (3402), 2163 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 3402 transitions. [2024-11-08 17:23:07,642 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 3402 transitions. Word has length 82 [2024-11-08 17:23:07,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:07,643 INFO L471 AbstractCegarLoop]: Abstraction has 2164 states and 3402 transitions. [2024-11-08 17:23:07,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 3402 transitions. [2024-11-08 17:23:07,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 17:23:07,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:07,644 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:23:07,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:23:07,645 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:07,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash -771714905, now seen corresponding path program 1 times [2024-11-08 17:23:07,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:07,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252905344] [2024-11-08 17:23:07,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:07,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:07,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:23:07,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:07,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252905344] [2024-11-08 17:23:07,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252905344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:07,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:07,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:23:07,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297913996] [2024-11-08 17:23:07,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:07,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:23:07,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:07,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:23:07,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:07,759 INFO L87 Difference]: Start difference. First operand 2164 states and 3402 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:07,844 INFO L93 Difference]: Finished difference Result 3316 states and 5168 transitions. [2024-11-08 17:23:07,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:23:07,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-08 17:23:07,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:07,857 INFO L225 Difference]: With dead ends: 3316 [2024-11-08 17:23:07,857 INFO L226 Difference]: Without dead ends: 2716 [2024-11-08 17:23:07,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:07,860 INFO L432 NwaCegarLoop]: 1655 mSDtfsCounter, 1512 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:07,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:23:07,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2024-11-08 17:23:07,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 2714. [2024-11-08 17:23:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2714 states, 2712 states have (on average 1.5597345132743363) internal successors, (4230), 2713 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 4230 transitions. [2024-11-08 17:23:07,958 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 4230 transitions. Word has length 82 [2024-11-08 17:23:07,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:07,958 INFO L471 AbstractCegarLoop]: Abstraction has 2714 states and 4230 transitions. [2024-11-08 17:23:07,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:07,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 4230 transitions. [2024-11-08 17:23:07,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 17:23:07,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:07,960 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:23:07,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:23:07,961 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:07,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:07,961 INFO L85 PathProgramCache]: Analyzing trace with hash -507858521, now seen corresponding path program 1 times [2024-11-08 17:23:07,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:07,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285006053] [2024-11-08 17:23:07,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:07,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:08,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:23:08,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:08,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285006053] [2024-11-08 17:23:08,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285006053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:08,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:08,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:23:08,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783681140] [2024-11-08 17:23:08,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:08,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:23:08,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:08,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:23:08,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:08,074 INFO L87 Difference]: Start difference. First operand 2714 states and 4230 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:08,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:08,184 INFO L93 Difference]: Finished difference Result 4918 states and 7568 transitions. [2024-11-08 17:23:08,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:23:08,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-08 17:23:08,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:08,201 INFO L225 Difference]: With dead ends: 4918 [2024-11-08 17:23:08,201 INFO L226 Difference]: Without dead ends: 3768 [2024-11-08 17:23:08,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:08,296 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 1510 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:08,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1754 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:23:08,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2024-11-08 17:23:08,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3766. [2024-11-08 17:23:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3766 states, 3764 states have (on average 1.5382571732199788) internal successors, (5790), 3765 states have internal predecessors, (5790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:08,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 5790 transitions. [2024-11-08 17:23:08,491 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 5790 transitions. Word has length 82 [2024-11-08 17:23:08,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:08,492 INFO L471 AbstractCegarLoop]: Abstraction has 3766 states and 5790 transitions. [2024-11-08 17:23:08,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:08,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 5790 transitions. [2024-11-08 17:23:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 17:23:08,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:08,494 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:23:08,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:23:08,495 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:08,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:08,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1485065305, now seen corresponding path program 1 times [2024-11-08 17:23:08,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:08,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451146658] [2024-11-08 17:23:08,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:08,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:08,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:23:08,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:08,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451146658] [2024-11-08 17:23:08,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451146658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:08,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:08,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:23:08,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975835374] [2024-11-08 17:23:08,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:08,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:23:08,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:08,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:23:08,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:08,638 INFO L87 Difference]: Start difference. First operand 3766 states and 5790 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:08,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:08,844 INFO L93 Difference]: Finished difference Result 7978 states and 12080 transitions. [2024-11-08 17:23:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:23:08,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-08 17:23:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:08,888 INFO L225 Difference]: With dead ends: 7978 [2024-11-08 17:23:08,891 INFO L226 Difference]: Without dead ends: 5776 [2024-11-08 17:23:08,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:08,901 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 1506 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:08,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:23:08,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5776 states. [2024-11-08 17:23:09,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5776 to 5774. [2024-11-08 17:23:09,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5774 states, 5772 states have (on average 1.5103950103950103) internal successors, (8718), 5773 states have internal predecessors, (8718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:09,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5774 states to 5774 states and 8718 transitions. [2024-11-08 17:23:09,243 INFO L78 Accepts]: Start accepts. Automaton has 5774 states and 8718 transitions. Word has length 82 [2024-11-08 17:23:09,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:09,244 INFO L471 AbstractCegarLoop]: Abstraction has 5774 states and 8718 transitions. [2024-11-08 17:23:09,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:09,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5774 states and 8718 transitions. [2024-11-08 17:23:09,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 17:23:09,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:09,251 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:23:09,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:23:09,252 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:09,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:09,256 INFO L85 PathProgramCache]: Analyzing trace with hash 295867559, now seen corresponding path program 1 times [2024-11-08 17:23:09,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:09,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672318299] [2024-11-08 17:23:09,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:09,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:09,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:23:09,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:09,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672318299] [2024-11-08 17:23:09,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672318299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:09,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:09,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:23:09,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58724432] [2024-11-08 17:23:09,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:09,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:23:09,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:09,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:23:09,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:09,410 INFO L87 Difference]: Start difference. First operand 5774 states and 8718 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:09,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:09,747 INFO L93 Difference]: Finished difference Result 13810 states and 20528 transitions. [2024-11-08 17:23:09,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:23:09,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-08 17:23:09,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:09,773 INFO L225 Difference]: With dead ends: 13810 [2024-11-08 17:23:09,773 INFO L226 Difference]: Without dead ends: 9600 [2024-11-08 17:23:09,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:09,782 INFO L432 NwaCegarLoop]: 1639 mSDtfsCounter, 1504 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:09,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:23:09,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2024-11-08 17:23:10,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9598. [2024-11-08 17:23:10,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9598 states, 9596 states have (on average 1.4787411421425594) internal successors, (14190), 9597 states have internal predecessors, (14190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:10,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9598 states to 9598 states and 14190 transitions. [2024-11-08 17:23:10,171 INFO L78 Accepts]: Start accepts. Automaton has 9598 states and 14190 transitions. Word has length 82 [2024-11-08 17:23:10,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:10,172 INFO L471 AbstractCegarLoop]: Abstraction has 9598 states and 14190 transitions. [2024-11-08 17:23:10,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:10,172 INFO L276 IsEmpty]: Start isEmpty. Operand 9598 states and 14190 transitions. [2024-11-08 17:23:10,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 17:23:10,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:10,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:23:10,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:23:10,174 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:10,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:10,175 INFO L85 PathProgramCache]: Analyzing trace with hash 730403495, now seen corresponding path program 1 times [2024-11-08 17:23:10,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:10,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071300288] [2024-11-08 17:23:10,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:10,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:10,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:23:10,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:10,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071300288] [2024-11-08 17:23:10,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071300288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:10,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:10,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:23:10,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765111542] [2024-11-08 17:23:10,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:10,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:23:10,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:10,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:23:10,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:10,277 INFO L87 Difference]: Start difference. First operand 9598 states and 14190 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:10,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:10,815 INFO L93 Difference]: Finished difference Result 24898 states and 36272 transitions. [2024-11-08 17:23:10,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:23:10,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-08 17:23:10,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:10,859 INFO L225 Difference]: With dead ends: 24898 [2024-11-08 17:23:10,859 INFO L226 Difference]: Without dead ends: 16864 [2024-11-08 17:23:10,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:23:10,873 INFO L432 NwaCegarLoop]: 1651 mSDtfsCounter, 1508 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:10,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1756 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:23:10,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16864 states. [2024-11-08 17:23:11,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16864 to 16862. [2024-11-08 17:23:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16862 states, 16860 states have (on average 1.4451957295373665) internal successors, (24366), 16861 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:11,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16862 states to 16862 states and 24366 transitions. [2024-11-08 17:23:11,552 INFO L78 Accepts]: Start accepts. Automaton has 16862 states and 24366 transitions. Word has length 82 [2024-11-08 17:23:11,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:11,552 INFO L471 AbstractCegarLoop]: Abstraction has 16862 states and 24366 transitions. [2024-11-08 17:23:11,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:11,553 INFO L276 IsEmpty]: Start isEmpty. Operand 16862 states and 24366 transitions. [2024-11-08 17:23:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 17:23:11,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:11,559 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:23:11,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:23:11,560 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:11,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:11,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1168556832, now seen corresponding path program 1 times [2024-11-08 17:23:11,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:11,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649440642] [2024-11-08 17:23:11,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:11,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:11,992 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:23:11,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:11,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649440642] [2024-11-08 17:23:11,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649440642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:11,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:11,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:23:11,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938785249] [2024-11-08 17:23:11,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:11,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:23:11,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:11,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:23:11,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:23:11,995 INFO L87 Difference]: Start difference. First operand 16862 states and 24366 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:16,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:16,168 INFO L93 Difference]: Finished difference Result 122542 states and 175478 transitions. [2024-11-08 17:23:16,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:23:16,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 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 106 [2024-11-08 17:23:16,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:16,801 INFO L225 Difference]: With dead ends: 122542 [2024-11-08 17:23:16,801 INFO L226 Difference]: Without dead ends: 111788 [2024-11-08 17:23:16,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:23:16,870 INFO L432 NwaCegarLoop]: 1670 mSDtfsCounter, 9880 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9880 SdHoareTripleChecker+Valid, 4678 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:16,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9880 Valid, 4678 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:23:16,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111788 states. [2024-11-08 17:23:19,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111788 to 29918. [2024-11-08 17:23:19,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29918 states, 29916 states have (on average 1.4327450193876186) internal successors, (42862), 29917 states have internal predecessors, (42862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:19,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29918 states to 29918 states and 42862 transitions. [2024-11-08 17:23:19,624 INFO L78 Accepts]: Start accepts. Automaton has 29918 states and 42862 transitions. Word has length 106 [2024-11-08 17:23:19,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:19,624 INFO L471 AbstractCegarLoop]: Abstraction has 29918 states and 42862 transitions. [2024-11-08 17:23:19,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:19,625 INFO L276 IsEmpty]: Start isEmpty. Operand 29918 states and 42862 transitions. [2024-11-08 17:23:19,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 17:23:19,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:19,633 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:23:19,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:23:19,634 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:19,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:19,635 INFO L85 PathProgramCache]: Analyzing trace with hash 773512672, now seen corresponding path program 1 times [2024-11-08 17:23:19,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:19,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294564630] [2024-11-08 17:23:19,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:19,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:20,053 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 17:23:20,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:20,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294564630] [2024-11-08 17:23:20,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294564630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:20,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:20,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:23:20,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46349474] [2024-11-08 17:23:20,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:20,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:23:20,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:20,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:23:20,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:23:20,061 INFO L87 Difference]: Start difference. First operand 29918 states and 42862 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:24,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:24,327 INFO L93 Difference]: Finished difference Result 137838 states and 197238 transitions. [2024-11-08 17:23:24,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:23:24,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 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 106 [2024-11-08 17:23:24,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:24,722 INFO L225 Difference]: With dead ends: 137838 [2024-11-08 17:23:24,723 INFO L226 Difference]: Without dead ends: 122540 [2024-11-08 17:23:24,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:23:24,774 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 9882 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9882 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:24,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9882 Valid, 4628 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:23:24,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122540 states. [2024-11-08 17:23:27,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122540 to 50590. [2024-11-08 17:23:27,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50590 states, 50588 states have (on average 1.4254368624970348) internal successors, (72110), 50589 states have internal predecessors, (72110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:27,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50590 states to 50590 states and 72110 transitions. [2024-11-08 17:23:27,519 INFO L78 Accepts]: Start accepts. Automaton has 50590 states and 72110 transitions. Word has length 106 [2024-11-08 17:23:27,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:27,520 INFO L471 AbstractCegarLoop]: Abstraction has 50590 states and 72110 transitions. [2024-11-08 17:23:27,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 50590 states and 72110 transitions. [2024-11-08 17:23:27,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 17:23:27,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:27,530 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:23:27,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:23:27,530 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:27,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:27,531 INFO L85 PathProgramCache]: Analyzing trace with hash 936427232, now seen corresponding path program 1 times [2024-11-08 17:23:27,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:27,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837591562] [2024-11-08 17:23:27,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:27,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:28,175 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 17:23:28,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:28,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837591562] [2024-11-08 17:23:28,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837591562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:28,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:28,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:23:28,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326929624] [2024-11-08 17:23:28,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:28,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:23:28,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:28,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:23:28,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:23:28,180 INFO L87 Difference]: Start difference. First operand 50590 states and 72110 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:32,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:32,668 INFO L93 Difference]: Finished difference Result 153134 states and 218934 transitions. [2024-11-08 17:23:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:23:32,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 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 106 [2024-11-08 17:23:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:32,992 INFO L225 Difference]: With dead ends: 153134 [2024-11-08 17:23:32,992 INFO L226 Difference]: Without dead ends: 137836 [2024-11-08 17:23:33,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:23:33,091 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 9905 mSDsluCounter, 2892 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9905 SdHoareTripleChecker+Valid, 4559 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:33,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9905 Valid, 4559 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:23:33,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137836 states. [2024-11-08 17:23:36,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137836 to 65886. [2024-11-08 17:23:36,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65886 states, 65884 states have (on average 1.423805476291664) internal successors, (93806), 65885 states have internal predecessors, (93806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:36,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65886 states to 65886 states and 93806 transitions. [2024-11-08 17:23:36,714 INFO L78 Accepts]: Start accepts. Automaton has 65886 states and 93806 transitions. Word has length 106 [2024-11-08 17:23:36,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:36,717 INFO L471 AbstractCegarLoop]: Abstraction has 65886 states and 93806 transitions. [2024-11-08 17:23:36,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:36,717 INFO L276 IsEmpty]: Start isEmpty. Operand 65886 states and 93806 transitions. [2024-11-08 17:23:36,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 17:23:36,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:36,739 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:23:36,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:23:36,741 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:36,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:36,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1200283616, now seen corresponding path program 1 times [2024-11-08 17:23:36,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:36,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192593954] [2024-11-08 17:23:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:36,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:37,252 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 17:23:37,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:37,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192593954] [2024-11-08 17:23:37,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192593954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:37,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:37,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:23:37,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228844017] [2024-11-08 17:23:37,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:37,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:23:37,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:37,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:23:37,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:23:37,257 INFO L87 Difference]: Start difference. First operand 65886 states and 93806 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:43,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:43,193 INFO L93 Difference]: Finished difference Result 168430 states and 240630 transitions. [2024-11-08 17:23:43,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:23:43,194 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 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 106 [2024-11-08 17:23:43,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:43,399 INFO L225 Difference]: With dead ends: 168430 [2024-11-08 17:23:43,399 INFO L226 Difference]: Without dead ends: 153132 [2024-11-08 17:23:43,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:23:43,440 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 9996 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9996 SdHoareTripleChecker+Valid, 4523 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:43,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9996 Valid, 4523 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:23:43,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153132 states. [2024-11-08 17:23:46,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153132 to 81182. [2024-11-08 17:23:47,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81182 states, 81180 states have (on average 1.4227888642522788) internal successors, (115502), 81181 states have internal predecessors, (115502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:47,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81182 states to 81182 states and 115502 transitions. [2024-11-08 17:23:47,144 INFO L78 Accepts]: Start accepts. Automaton has 81182 states and 115502 transitions. Word has length 106 [2024-11-08 17:23:47,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:47,144 INFO L471 AbstractCegarLoop]: Abstraction has 81182 states and 115502 transitions. [2024-11-08 17:23:47,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:47,145 INFO L276 IsEmpty]: Start isEmpty. Operand 81182 states and 115502 transitions. [2024-11-08 17:23:47,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 17:23:47,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:47,391 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:23:47,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:23:47,392 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:47,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:47,393 INFO L85 PathProgramCache]: Analyzing trace with hash 223076832, now seen corresponding path program 1 times [2024-11-08 17:23:47,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:47,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986637809] [2024-11-08 17:23:47,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:47,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:47,930 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 17:23:47,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:47,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986637809] [2024-11-08 17:23:47,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986637809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:47,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:47,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:23:47,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408078939] [2024-11-08 17:23:47,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:47,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:23:47,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:47,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:23:47,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:23:47,934 INFO L87 Difference]: Start difference. First operand 81182 states and 115502 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:54,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:23:54,496 INFO L93 Difference]: Finished difference Result 183726 states and 262326 transitions. [2024-11-08 17:23:54,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:23:54,497 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 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 106 [2024-11-08 17:23:54,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:23:54,785 INFO L225 Difference]: With dead ends: 183726 [2024-11-08 17:23:54,785 INFO L226 Difference]: Without dead ends: 168428 [2024-11-08 17:23:54,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:23:54,824 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 10085 mSDsluCounter, 2878 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10085 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:23:54,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10085 Valid, 4541 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:23:54,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168428 states. [2024-11-08 17:23:59,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168428 to 96478. [2024-11-08 17:23:59,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96478 states, 96476 states have (on average 1.422094614204569) internal successors, (137198), 96477 states have internal predecessors, (137198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96478 states to 96478 states and 137198 transitions. [2024-11-08 17:23:59,325 INFO L78 Accepts]: Start accepts. Automaton has 96478 states and 137198 transitions. Word has length 106 [2024-11-08 17:23:59,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:23:59,325 INFO L471 AbstractCegarLoop]: Abstraction has 96478 states and 137198 transitions. [2024-11-08 17:23:59,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:23:59,325 INFO L276 IsEmpty]: Start isEmpty. Operand 96478 states and 137198 transitions. [2024-11-08 17:23:59,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 17:23:59,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:23:59,341 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:23:59,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:23:59,341 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:23:59,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:23:59,342 INFO L85 PathProgramCache]: Analyzing trace with hash 2004009696, now seen corresponding path program 1 times [2024-11-08 17:23:59,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:23:59,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320759553] [2024-11-08 17:23:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:23:59,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:23:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:23:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 17:23:59,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:23:59,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320759553] [2024-11-08 17:23:59,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320759553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:23:59,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:23:59,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:23:59,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672885360] [2024-11-08 17:23:59,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:23:59,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:23:59,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:23:59,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:23:59,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:23:59,788 INFO L87 Difference]: Start difference. First operand 96478 states and 137198 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)