./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd --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 c5f4858505c444657049a34bd1efbc3b1e97c5e32733a83c11ccaa8ea369cb2f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:13:57,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:13:57,882 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:13:57,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:13:57,889 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:13:57,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:13:57,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:13:57,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:13:57,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:13:57,956 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:13:57,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:13:57,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:13:57,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:13:57,958 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:13:57,958 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:13:57,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:13:57,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:13:57,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:13:57,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:13:57,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:13:57,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:13:57,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:13:57,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:13:57,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:13:57,964 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:13:57,964 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:13:57,964 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:13:57,965 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:13:57,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:13:57,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:13:57,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:13:57,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:13:57,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:13:57,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:13:57,966 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:13:57,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:13:57,966 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:13:57,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:13:57,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:13:57,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:13:57,967 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:13:57,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:13:57,967 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd 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 -> c5f4858505c444657049a34bd1efbc3b1e97c5e32733a83c11ccaa8ea369cb2f [2024-11-13 15:13:58,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:13:58,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:13:58,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:13:58,488 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:13:58,489 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:13:58,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c Unable to find full path for "g++" [2024-11-13 15:14:01,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:14:01,751 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:14:01,752 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2024-11-13 15:14:01,771 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/data/1bb387049/6d9d4c3b35da4135b5ea6f29d49c54b0/FLAG4fa6bf7f5 [2024-11-13 15:14:01,814 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/data/1bb387049/6d9d4c3b35da4135b5ea6f29d49c54b0 [2024-11-13 15:14:01,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:14:01,824 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:14:01,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:01,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:14:01,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:14:01,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:01" (1/1) ... [2024-11-13 15:14:01,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3545f2a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:01, skipping insertion in model container [2024-11-13 15:14:01,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:01" (1/1) ... [2024-11-13 15:14:01,941 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:14:02,355 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_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7806,7819] [2024-11-13 15:14:02,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:02,466 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:14:02,630 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_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7806,7819] [2024-11-13 15:14:02,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:02,742 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:14:02,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02 WrapperNode [2024-11-13 15:14:02,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:02,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:02,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:14:02,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:14:02,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:02,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:02,932 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 687 [2024-11-13 15:14:02,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:02,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:14:02,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:14:02,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:14:02,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:02,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:02,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:03,026 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]. [2024-11-13 15:14:03,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:03,031 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:03,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:03,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:03,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:03,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:03,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:14:03,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:14:03,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:14:03,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:14:03,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (1/1) ... [2024-11-13 15:14:03,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:14:03,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:03,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:14:03,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafced90-bfe4-41fa-9fc8-8c3e36c65be1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:14:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:14:03,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:14:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:14:03,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:14:03,493 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:14:03,497 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:14:05,180 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-13 15:14:05,181 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:14:05,211 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:14:05,213 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 15:14:05,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:05 BoogieIcfgContainer [2024-11-13 15:14:05,214 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:14:05,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:14:05,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:14:05,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:14:05,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:14:01" (1/3) ... [2024-11-13 15:14:05,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434c13c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:14:05, skipping insertion in model container [2024-11-13 15:14:05,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:02" (2/3) ... [2024-11-13 15:14:05,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434c13c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:14:05, skipping insertion in model container [2024-11-13 15:14:05,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:05" (3/3) ... [2024-11-13 15:14:05,233 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2024-11-13 15:14:05,263 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:14:05,271 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c that has 1 procedures, 149 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 15:14:05,415 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:14:05,445 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;@ff8da06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:14:05,446 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:14:05,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 147 states have (on average 1.7619047619047619) internal successors, (259), 148 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:05,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 15:14:05,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:05,479 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] [2024-11-13 15:14:05,480 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:05,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:05,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1468963440, now seen corresponding path program 1 times [2024-11-13 15:14:05,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:05,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524116304] [2024-11-13 15:14:05,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:05,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:06,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:06,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524116304] [2024-11-13 15:14:06,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524116304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:06,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:06,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:06,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758383101] [2024-11-13 15:14:06,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:06,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:06,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:06,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:06,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:06,653 INFO L87 Difference]: Start difference. First operand has 149 states, 147 states have (on average 1.7619047619047619) internal successors, (259), 148 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:06,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:06,871 INFO L93 Difference]: Finished difference Result 323 states and 547 transitions. [2024-11-13 15:14:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:06,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-13 15:14:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:06,901 INFO L225 Difference]: With dead ends: 323 [2024-11-13 15:14:06,901 INFO L226 Difference]: Without dead ends: 225 [2024-11-13 15:14:06,910 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 [2024-11-13 15:14:06,918 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 150 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:06,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 452 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:06,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-13 15:14:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2024-11-13 15:14:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 222 states have (on average 1.572072072072072) internal successors, (349), 222 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:07,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 349 transitions. [2024-11-13 15:14:07,036 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 349 transitions. Word has length 62 [2024-11-13 15:14:07,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:07,037 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 349 transitions. [2024-11-13 15:14:07,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:07,038 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 349 transitions. [2024-11-13 15:14:07,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 15:14:07,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:07,045 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] [2024-11-13 15:14:07,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:14:07,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:07,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:07,051 INFO L85 PathProgramCache]: Analyzing trace with hash -240910223, now seen corresponding path program 1 times [2024-11-13 15:14:07,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:07,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721141158] [2024-11-13 15:14:07,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:07,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:07,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:07,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:07,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721141158] [2024-11-13 15:14:07,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721141158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:07,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:07,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:07,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59946999] [2024-11-13 15:14:07,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:07,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:07,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:07,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:07,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:07,470 INFO L87 Difference]: Start difference. First operand 223 states and 349 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:07,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:07,564 INFO L93 Difference]: Finished difference Result 539 states and 869 transitions. [2024-11-13 15:14:07,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:07,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-13 15:14:07,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:07,569 INFO L225 Difference]: With dead ends: 539 [2024-11-13 15:14:07,569 INFO L226 Difference]: Without dead ends: 373 [2024-11-13 15:14:07,570 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 [2024-11-13 15:14:07,572 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 125 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:07,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 415 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:07,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-13 15:14:07,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 371. [2024-11-13 15:14:07,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 370 states have (on average 1.6) internal successors, (592), 370 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:07,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 592 transitions. [2024-11-13 15:14:07,615 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 592 transitions. Word has length 64 [2024-11-13 15:14:07,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:07,616 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 592 transitions. [2024-11-13 15:14:07,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:07,617 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 592 transitions. [2024-11-13 15:14:07,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 15:14:07,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:07,621 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] [2024-11-13 15:14:07,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:14:07,622 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:07,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:07,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1851209774, now seen corresponding path program 1 times [2024-11-13 15:14:07,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:07,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036908841] [2024-11-13 15:14:07,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:07,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:08,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:08,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036908841] [2024-11-13 15:14:08,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036908841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:08,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:08,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:08,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732541934] [2024-11-13 15:14:08,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:08,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:08,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:08,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:08,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:08,097 INFO L87 Difference]: Start difference. First operand 371 states and 592 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:08,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:08,200 INFO L93 Difference]: Finished difference Result 967 states and 1570 transitions. [2024-11-13 15:14:08,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:08,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-13 15:14:08,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:08,211 INFO L225 Difference]: With dead ends: 967 [2024-11-13 15:14:08,215 INFO L226 Difference]: Without dead ends: 653 [2024-11-13 15:14:08,218 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 [2024-11-13 15:14:08,223 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 119 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:08,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 416 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:08,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-11-13 15:14:08,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 651. [2024-11-13 15:14:08,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 650 states have (on average 1.6123076923076922) internal successors, (1048), 650 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:08,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 1048 transitions. [2024-11-13 15:14:08,328 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 1048 transitions. Word has length 66 [2024-11-13 15:14:08,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:08,329 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 1048 transitions. [2024-11-13 15:14:08,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:08,332 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 1048 transitions. [2024-11-13 15:14:08,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 15:14:08,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:08,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:08,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:14:08,341 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:08,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:08,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1666116403, now seen corresponding path program 1 times [2024-11-13 15:14:08,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:08,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405592469] [2024-11-13 15:14:08,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:08,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:08,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:08,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405592469] [2024-11-13 15:14:08,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405592469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:08,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:08,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:14:08,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42587660] [2024-11-13 15:14:08,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:08,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:14:08,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:08,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:14:08,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:08,899 INFO L87 Difference]: Start difference. First operand 651 states and 1048 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:09,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:09,445 INFO L93 Difference]: Finished difference Result 2807 states and 4618 transitions. [2024-11-13 15:14:09,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:14:09,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-13 15:14:09,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:09,465 INFO L225 Difference]: With dead ends: 2807 [2024-11-13 15:14:09,465 INFO L226 Difference]: Without dead ends: 2213 [2024-11-13 15:14:09,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:14:09,471 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 857 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:09,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1617 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:14:09,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2213 states. [2024-11-13 15:14:09,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2213 to 1170. [2024-11-13 15:14:09,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 1169 states have (on average 1.6236099230111207) internal successors, (1898), 1169 states have internal predecessors, (1898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:09,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1898 transitions. [2024-11-13 15:14:09,582 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1898 transitions. Word has length 68 [2024-11-13 15:14:09,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:09,584 INFO L471 AbstractCegarLoop]: Abstraction has 1170 states and 1898 transitions. [2024-11-13 15:14:09,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:09,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1898 transitions. [2024-11-13 15:14:09,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:14:09,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:09,589 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] [2024-11-13 15:14:09,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:14:09,590 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:09,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:09,591 INFO L85 PathProgramCache]: Analyzing trace with hash 47496755, now seen corresponding path program 1 times [2024-11-13 15:14:09,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:09,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237602990] [2024-11-13 15:14:09,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:09,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:09,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:09,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237602990] [2024-11-13 15:14:09,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237602990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:09,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:09,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:14:09,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331700882] [2024-11-13 15:14:09,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:09,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:14:09,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:09,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:14:09,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:09,971 INFO L87 Difference]: Start difference. First operand 1170 states and 1898 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:10,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:10,217 INFO L93 Difference]: Finished difference Result 3409 states and 5599 transitions. [2024-11-13 15:14:10,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:14:10,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-13 15:14:10,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:10,234 INFO L225 Difference]: With dead ends: 3409 [2024-11-13 15:14:10,234 INFO L226 Difference]: Without dead ends: 2296 [2024-11-13 15:14:10,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:10,238 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 430 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:10,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 755 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:14:10,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2024-11-13 15:14:10,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 1724. [2024-11-13 15:14:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1723 states have (on average 1.6297156123041208) internal successors, (2808), 1723 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2808 transitions. [2024-11-13 15:14:10,355 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2808 transitions. Word has length 69 [2024-11-13 15:14:10,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:10,356 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 2808 transitions. [2024-11-13 15:14:10,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2808 transitions. [2024-11-13 15:14:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 15:14:10,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:10,360 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] [2024-11-13 15:14:10,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:14:10,360 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:10,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:10,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1156873170, now seen corresponding path program 1 times [2024-11-13 15:14:10,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:10,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11597094] [2024-11-13 15:14:10,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:10,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:10,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:10,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:10,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11597094] [2024-11-13 15:14:10,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11597094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:10,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:10,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:10,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679636593] [2024-11-13 15:14:10,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:10,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:10,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:10,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:10,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:10,692 INFO L87 Difference]: Start difference. First operand 1724 states and 2808 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:10,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:10,815 INFO L93 Difference]: Finished difference Result 3779 states and 6218 transitions. [2024-11-13 15:14:10,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:10,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-13 15:14:10,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:10,843 INFO L225 Difference]: With dead ends: 3779 [2024-11-13 15:14:10,844 INFO L226 Difference]: Without dead ends: 2591 [2024-11-13 15:14:10,849 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 [2024-11-13 15:14:10,851 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 132 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:10,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 512 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:10,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2024-11-13 15:14:10,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 2589. [2024-11-13 15:14:10,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2589 states, 2588 states have (on average 1.6333075734157652) internal successors, (4227), 2588 states have internal predecessors, (4227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:10,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2589 states to 2589 states and 4227 transitions. [2024-11-13 15:14:10,985 INFO L78 Accepts]: Start accepts. Automaton has 2589 states and 4227 transitions. Word has length 70 [2024-11-13 15:14:10,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:10,985 INFO L471 AbstractCegarLoop]: Abstraction has 2589 states and 4227 transitions. [2024-11-13 15:14:10,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:10,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2589 states and 4227 transitions. [2024-11-13 15:14:10,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 15:14:10,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:10,991 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] [2024-11-13 15:14:10,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:14:10,992 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:10,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:10,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1843763252, now seen corresponding path program 1 times [2024-11-13 15:14:10,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:10,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261798849] [2024-11-13 15:14:10,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:10,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:11,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:11,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261798849] [2024-11-13 15:14:11,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261798849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:11,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:11,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:11,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628854689] [2024-11-13 15:14:11,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:11,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:11,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:11,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:11,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:11,182 INFO L87 Difference]: Start difference. First operand 2589 states and 4227 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:11,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:11,291 INFO L93 Difference]: Finished difference Result 5033 states and 8246 transitions. [2024-11-13 15:14:11,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:11,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-13 15:14:11,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:11,317 INFO L225 Difference]: With dead ends: 5033 [2024-11-13 15:14:11,318 INFO L226 Difference]: Without dead ends: 3599 [2024-11-13 15:14:11,322 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 [2024-11-13 15:14:11,324 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 126 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:11,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 498 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:11,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3599 states. [2024-11-13 15:14:11,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3599 to 3597. [2024-11-13 15:14:11,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3597 states, 3596 states have (on average 1.628754171301446) internal successors, (5857), 3596 states have internal predecessors, (5857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:11,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3597 states to 3597 states and 5857 transitions. [2024-11-13 15:14:11,486 INFO L78 Accepts]: Start accepts. Automaton has 3597 states and 5857 transitions. Word has length 70 [2024-11-13 15:14:11,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:11,487 INFO L471 AbstractCegarLoop]: Abstraction has 3597 states and 5857 transitions. [2024-11-13 15:14:11,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:11,487 INFO L276 IsEmpty]: Start isEmpty. Operand 3597 states and 5857 transitions. [2024-11-13 15:14:11,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 15:14:11,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:11,489 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] [2024-11-13 15:14:11,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:14:11,489 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:11,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:11,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1414453242, now seen corresponding path program 1 times [2024-11-13 15:14:11,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:11,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181636681] [2024-11-13 15:14:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:11,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:11,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181636681] [2024-11-13 15:14:11,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181636681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:11,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:11,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:14:11,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333029453] [2024-11-13 15:14:11,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:11,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:14:11,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:11,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:14:11,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:11,804 INFO L87 Difference]: Start difference. First operand 3597 states and 5857 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:12,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:12,167 INFO L93 Difference]: Finished difference Result 11303 states and 18475 transitions. [2024-11-13 15:14:12,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:14:12,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-13 15:14:12,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:12,222 INFO L225 Difference]: With dead ends: 11303 [2024-11-13 15:14:12,223 INFO L226 Difference]: Without dead ends: 7781 [2024-11-13 15:14:12,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:12,232 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 429 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:12,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 747 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:14:12,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7781 states. [2024-11-13 15:14:12,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7781 to 5670. [2024-11-13 15:14:12,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5670 states, 5669 states have (on average 1.6232139707179396) internal successors, (9202), 5669 states have internal predecessors, (9202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5670 states to 5670 states and 9202 transitions. [2024-11-13 15:14:12,520 INFO L78 Accepts]: Start accepts. Automaton has 5670 states and 9202 transitions. Word has length 70 [2024-11-13 15:14:12,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:12,521 INFO L471 AbstractCegarLoop]: Abstraction has 5670 states and 9202 transitions. [2024-11-13 15:14:12,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:12,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5670 states and 9202 transitions. [2024-11-13 15:14:12,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 15:14:12,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:12,522 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] [2024-11-13 15:14:12,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:14:12,523 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:12,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:12,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1510229994, now seen corresponding path program 1 times [2024-11-13 15:14:12,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:12,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724775944] [2024-11-13 15:14:12,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:12,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:12,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:12,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:12,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724775944] [2024-11-13 15:14:12,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724775944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:12,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:12,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:12,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171459151] [2024-11-13 15:14:12,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:12,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:12,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:12,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:12,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:12,741 INFO L87 Difference]: Start difference. First operand 5670 states and 9202 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:12,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:12,877 INFO L93 Difference]: Finished difference Result 11090 states and 18039 transitions. [2024-11-13 15:14:12,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:12,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-13 15:14:12,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:12,930 INFO L225 Difference]: With dead ends: 11090 [2024-11-13 15:14:12,930 INFO L226 Difference]: Without dead ends: 7838 [2024-11-13 15:14:12,938 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 [2024-11-13 15:14:12,939 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 120 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:12,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 475 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:12,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7838 states. [2024-11-13 15:14:13,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7838 to 7836. [2024-11-13 15:14:13,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7836 states, 7835 states have (on average 1.61531589023612) internal successors, (12656), 7835 states have internal predecessors, (12656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:13,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7836 states to 7836 states and 12656 transitions. [2024-11-13 15:14:13,400 INFO L78 Accepts]: Start accepts. Automaton has 7836 states and 12656 transitions. Word has length 70 [2024-11-13 15:14:13,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:13,401 INFO L471 AbstractCegarLoop]: Abstraction has 7836 states and 12656 transitions. [2024-11-13 15:14:13,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:13,402 INFO L276 IsEmpty]: Start isEmpty. Operand 7836 states and 12656 transitions. [2024-11-13 15:14:13,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 15:14:13,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:13,408 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] [2024-11-13 15:14:13,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:14:13,408 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:13,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:13,409 INFO L85 PathProgramCache]: Analyzing trace with hash 844989402, now seen corresponding path program 1 times [2024-11-13 15:14:13,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:13,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086711742] [2024-11-13 15:14:13,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:13,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:13,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:13,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:13,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086711742] [2024-11-13 15:14:13,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086711742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:13,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:13,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:14:13,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641722089] [2024-11-13 15:14:13,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:13,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:14:13,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:13,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:14:13,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:13,728 INFO L87 Difference]: Start difference. First operand 7836 states and 12656 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:14,084 INFO L93 Difference]: Finished difference Result 24465 states and 39613 transitions. [2024-11-13 15:14:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:14:14,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-13 15:14:14,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:14,172 INFO L225 Difference]: With dead ends: 24465 [2024-11-13 15:14:14,172 INFO L226 Difference]: Without dead ends: 16720 [2024-11-13 15:14:14,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:14,189 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 427 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:14,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 749 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:14:14,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16720 states. [2024-11-13 15:14:14,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16720 to 12235. [2024-11-13 15:14:14,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12235 states, 12234 states have (on average 1.607242112146477) internal successors, (19663), 12234 states have internal predecessors, (19663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:14,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12235 states to 12235 states and 19663 transitions. [2024-11-13 15:14:14,742 INFO L78 Accepts]: Start accepts. Automaton has 12235 states and 19663 transitions. Word has length 71 [2024-11-13 15:14:14,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:14,742 INFO L471 AbstractCegarLoop]: Abstraction has 12235 states and 19663 transitions. [2024-11-13 15:14:14,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:14,743 INFO L276 IsEmpty]: Start isEmpty. Operand 12235 states and 19663 transitions. [2024-11-13 15:14:14,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-13 15:14:14,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:14,744 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] [2024-11-13 15:14:14,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:14:14,745 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:14,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:14,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1231314837, now seen corresponding path program 1 times [2024-11-13 15:14:14,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:14,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348928742] [2024-11-13 15:14:14,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:14,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:15,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:15,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:15,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348928742] [2024-11-13 15:14:15,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348928742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:15,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:15,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:14:15,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928798380] [2024-11-13 15:14:15,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:15,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:14:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:15,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:14:15,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:15,554 INFO L87 Difference]: Start difference. First operand 12235 states and 19663 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:15,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:15,898 INFO L93 Difference]: Finished difference Result 24381 states and 39202 transitions. [2024-11-13 15:14:15,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:14:15,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-13 15:14:15,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:15,956 INFO L225 Difference]: With dead ends: 24381 [2024-11-13 15:14:15,956 INFO L226 Difference]: Without dead ends: 12237 [2024-11-13 15:14:15,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:14:15,983 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 120 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:15,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 801 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:14:16,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12237 states. [2024-11-13 15:14:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12237 to 12235. [2024-11-13 15:14:16,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12235 states, 12234 states have (on average 1.5970246853032533) internal successors, (19538), 12234 states have internal predecessors, (19538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:16,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12235 states to 12235 states and 19538 transitions. [2024-11-13 15:14:16,507 INFO L78 Accepts]: Start accepts. Automaton has 12235 states and 19538 transitions. Word has length 73 [2024-11-13 15:14:16,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:16,509 INFO L471 AbstractCegarLoop]: Abstraction has 12235 states and 19538 transitions. [2024-11-13 15:14:16,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:16,511 INFO L276 IsEmpty]: Start isEmpty. Operand 12235 states and 19538 transitions. [2024-11-13 15:14:16,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-13 15:14:16,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:16,513 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:16,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:14:16,513 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:16,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:16,514 INFO L85 PathProgramCache]: Analyzing trace with hash -833180180, now seen corresponding path program 1 times [2024-11-13 15:14:16,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:16,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364879442] [2024-11-13 15:14:16,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:16,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:17,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:17,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:17,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364879442] [2024-11-13 15:14:17,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364879442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:17,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:17,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:14:17,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467214823] [2024-11-13 15:14:17,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:17,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:14:17,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:17,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:14:17,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:17,200 INFO L87 Difference]: Start difference. First operand 12235 states and 19538 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:17,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:17,577 INFO L93 Difference]: Finished difference Result 35013 states and 56062 transitions. [2024-11-13 15:14:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:14:17,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-13 15:14:17,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:17,679 INFO L225 Difference]: With dead ends: 35013 [2024-11-13 15:14:17,679 INFO L226 Difference]: Without dead ends: 22869 [2024-11-13 15:14:17,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:14:17,708 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 352 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:17,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 612 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:17,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22869 states. [2024-11-13 15:14:18,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22869 to 22867. [2024-11-13 15:14:18,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22867 states, 22866 states have (on average 1.585716784745911) internal successors, (36259), 22866 states have internal predecessors, (36259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:18,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22867 states to 22867 states and 36259 transitions. [2024-11-13 15:14:18,515 INFO L78 Accepts]: Start accepts. Automaton has 22867 states and 36259 transitions. Word has length 76 [2024-11-13 15:14:18,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:18,515 INFO L471 AbstractCegarLoop]: Abstraction has 22867 states and 36259 transitions. [2024-11-13 15:14:18,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:18,516 INFO L276 IsEmpty]: Start isEmpty. Operand 22867 states and 36259 transitions. [2024-11-13 15:14:18,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 15:14:18,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:18,517 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] [2024-11-13 15:14:18,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:14:18,518 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:18,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:18,519 INFO L85 PathProgramCache]: Analyzing trace with hash -60691096, now seen corresponding path program 1 times [2024-11-13 15:14:18,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:18,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75400842] [2024-11-13 15:14:18,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:18,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:19,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:19,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75400842] [2024-11-13 15:14:19,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75400842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:19,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:19,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:14:19,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559092490] [2024-11-13 15:14:19,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:19,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:14:19,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:19,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:14:19,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:19,473 INFO L87 Difference]: Start difference. First operand 22867 states and 36259 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:19,634 INFO L93 Difference]: Finished difference Result 23593 states and 37346 transitions. [2024-11-13 15:14:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:14:19,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-13 15:14:19,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:19,726 INFO L225 Difference]: With dead ends: 23593 [2024-11-13 15:14:19,726 INFO L226 Difference]: Without dead ends: 23591 [2024-11-13 15:14:19,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:19,741 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 0 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:19,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 867 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:19,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23591 states. [2024-11-13 15:14:20,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23591 to 23591. [2024-11-13 15:14:20,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23591 states, 23590 states have (on average 1.5673590504451038) internal successors, (36974), 23590 states have internal predecessors, (36974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:20,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23591 states to 23591 states and 36974 transitions. [2024-11-13 15:14:20,563 INFO L78 Accepts]: Start accepts. Automaton has 23591 states and 36974 transitions. Word has length 77 [2024-11-13 15:14:20,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:20,564 INFO L471 AbstractCegarLoop]: Abstraction has 23591 states and 36974 transitions. [2024-11-13 15:14:20,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:20,564 INFO L276 IsEmpty]: Start isEmpty. Operand 23591 states and 36974 transitions. [2024-11-13 15:14:20,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 15:14:20,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:20,571 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:14:20,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:14:20,571 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:20,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:20,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1256747651, now seen corresponding path program 1 times [2024-11-13 15:14:20,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:20,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214067657] [2024-11-13 15:14:20,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:20,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:21,007 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:14:21,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:21,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214067657] [2024-11-13 15:14:21,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214067657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:21,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:21,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:14:21,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637168764] [2024-11-13 15:14:21,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:21,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:14:21,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:21,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:14:21,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:21,010 INFO L87 Difference]: Start difference. First operand 23591 states and 36974 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 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) [2024-11-13 15:14:21,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:21,514 INFO L93 Difference]: Finished difference Result 57667 states and 90690 transitions. [2024-11-13 15:14:21,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:14:21,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 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 101 [2024-11-13 15:14:21,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:21,688 INFO L225 Difference]: With dead ends: 57667 [2024-11-13 15:14:21,688 INFO L226 Difference]: Without dead ends: 46305 [2024-11-13 15:14:21,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:14:21,717 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 551 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:21,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1021 Invalid, 68 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:21,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46305 states. [2024-11-13 15:14:22,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46305 to 36199. [2024-11-13 15:14:22,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36199 states, 36198 states have (on average 1.5652245980440909) internal successors, (56658), 36198 states have internal predecessors, (56658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:22,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36199 states to 36199 states and 56658 transitions. [2024-11-13 15:14:22,765 INFO L78 Accepts]: Start accepts. Automaton has 36199 states and 56658 transitions. Word has length 101 [2024-11-13 15:14:22,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:22,765 INFO L471 AbstractCegarLoop]: Abstraction has 36199 states and 56658 transitions. [2024-11-13 15:14:22,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 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) [2024-11-13 15:14:22,766 INFO L276 IsEmpty]: Start isEmpty. Operand 36199 states and 56658 transitions. [2024-11-13 15:14:22,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 15:14:22,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:22,770 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:14:22,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:14:22,771 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:22,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:22,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1943637733, now seen corresponding path program 1 times [2024-11-13 15:14:22,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:22,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474321471] [2024-11-13 15:14:22,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:22,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 15:14:23,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:23,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474321471] [2024-11-13 15:14:23,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474321471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:23,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:23,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:14:23,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741699952] [2024-11-13 15:14:23,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:23,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:14:23,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:23,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:14:23,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:23,069 INFO L87 Difference]: Start difference. First operand 36199 states and 56658 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 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) [2024-11-13 15:14:23,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:23,657 INFO L93 Difference]: Finished difference Result 64669 states and 101702 transitions. [2024-11-13 15:14:23,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:14:23,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 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 101 [2024-11-13 15:14:23,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:24,018 INFO L225 Difference]: With dead ends: 64669 [2024-11-13 15:14:24,019 INFO L226 Difference]: Without dead ends: 53537 [2024-11-13 15:14:24,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:14:24,071 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 550 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:24,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 996 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:24,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53537 states. [2024-11-13 15:14:25,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53537 to 49019. [2024-11-13 15:14:25,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49019 states, 49018 states have (on average 1.5666489860867436) internal successors, (76794), 49018 states have internal predecessors, (76794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:25,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49019 states to 49019 states and 76794 transitions. [2024-11-13 15:14:25,656 INFO L78 Accepts]: Start accepts. Automaton has 49019 states and 76794 transitions. Word has length 101 [2024-11-13 15:14:25,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:25,656 INFO L471 AbstractCegarLoop]: Abstraction has 49019 states and 76794 transitions. [2024-11-13 15:14:25,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 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) [2024-11-13 15:14:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 49019 states and 76794 transitions. [2024-11-13 15:14:25,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 15:14:25,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:25,661 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:14:25,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:14:25,662 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:25,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:25,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1410355513, now seen corresponding path program 1 times [2024-11-13 15:14:25,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:25,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65347605] [2024-11-13 15:14:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:25,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:26,227 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 15:14:26,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:26,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65347605] [2024-11-13 15:14:26,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65347605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:26,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:26,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:14:26,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351807573] [2024-11-13 15:14:26,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:26,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:14:26,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:26,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:14:26,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:26,231 INFO L87 Difference]: Start difference. First operand 49019 states and 76794 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:26,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:26,870 INFO L93 Difference]: Finished difference Result 69089 states and 108650 transitions. [2024-11-13 15:14:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:14:26,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 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 101 [2024-11-13 15:14:26,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:27,062 INFO L225 Difference]: With dead ends: 69089 [2024-11-13 15:14:27,063 INFO L226 Difference]: Without dead ends: 57957 [2024-11-13 15:14:27,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:14:27,083 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 558 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:27,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1024 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:14:27,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57957 states. [2024-11-13 15:14:28,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57957 to 56159. [2024-11-13 15:14:28,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56159 states, 56158 states have (on average 1.5682538551942733) internal successors, (88070), 56158 states have internal predecessors, (88070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:28,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56159 states to 56159 states and 88070 transitions. [2024-11-13 15:14:28,423 INFO L78 Accepts]: Start accepts. Automaton has 56159 states and 88070 transitions. Word has length 101 [2024-11-13 15:14:28,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:28,423 INFO L471 AbstractCegarLoop]: Abstraction has 56159 states and 88070 transitions. [2024-11-13 15:14:28,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:28,424 INFO L276 IsEmpty]: Start isEmpty. Operand 56159 states and 88070 transitions. [2024-11-13 15:14:28,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 15:14:28,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:28,427 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:14:28,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:14:28,427 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:28,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:28,428 INFO L85 PathProgramCache]: Analyzing trace with hash -366975703, now seen corresponding path program 1 times [2024-11-13 15:14:28,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:28,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55390834] [2024-11-13 15:14:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:28,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:28,932 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:14:28,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:28,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55390834] [2024-11-13 15:14:28,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55390834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:28,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:28,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:14:28,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645255309] [2024-11-13 15:14:28,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:28,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:14:28,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:28,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:14:28,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:28,935 INFO L87 Difference]: Start difference. First operand 56159 states and 88070 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:29,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:29,370 INFO L93 Difference]: Finished difference Result 91422 states and 144039 transitions. [2024-11-13 15:14:29,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:14:29,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 102 [2024-11-13 15:14:29,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:29,527 INFO L225 Difference]: With dead ends: 91422 [2024-11-13 15:14:29,528 INFO L226 Difference]: Without dead ends: 72828 [2024-11-13 15:14:29,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:29,564 INFO L432 NwaCegarLoop]: 353 mSDtfsCounter, 249 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:29,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 702 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:29,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72828 states. [2024-11-13 15:14:31,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72828 to 71032. [2024-11-13 15:14:31,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71032 states, 71031 states have (on average 1.5684419478819107) internal successors, (111408), 71031 states have internal predecessors, (111408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:31,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71032 states to 71032 states and 111408 transitions. [2024-11-13 15:14:31,580 INFO L78 Accepts]: Start accepts. Automaton has 71032 states and 111408 transitions. Word has length 102 [2024-11-13 15:14:31,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:31,581 INFO L471 AbstractCegarLoop]: Abstraction has 71032 states and 111408 transitions. [2024-11-13 15:14:31,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:31,582 INFO L276 IsEmpty]: Start isEmpty. Operand 71032 states and 111408 transitions. [2024-11-13 15:14:31,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 15:14:31,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:31,588 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:14:31,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:14:31,589 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:31,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:31,591 INFO L85 PathProgramCache]: Analyzing trace with hash -715663657, now seen corresponding path program 1 times [2024-11-13 15:14:31,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:31,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430103103] [2024-11-13 15:14:31,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:31,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:31,836 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:14:31,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:31,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430103103] [2024-11-13 15:14:31,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430103103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:31,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:31,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:31,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293622711] [2024-11-13 15:14:31,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:31,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:31,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:31,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:31,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:31,841 INFO L87 Difference]: Start difference. First operand 71032 states and 111408 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:32,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:32,822 INFO L93 Difference]: Finished difference Result 153124 states and 240888 transitions. [2024-11-13 15:14:32,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:32,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 102 [2024-11-13 15:14:32,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:33,120 INFO L225 Difference]: With dead ends: 153124 [2024-11-13 15:14:33,120 INFO L226 Difference]: Without dead ends: 119826 [2024-11-13 15:14:33,187 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 [2024-11-13 15:14:33,189 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 110 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:33,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 405 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:33,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119826 states. [2024-11-13 15:14:35,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119826 to 119548. [2024-11-13 15:14:35,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119548 states, 119547 states have (on average 1.5682451253481895) internal successors, (187479), 119547 states have internal predecessors, (187479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:36,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119548 states to 119548 states and 187479 transitions. [2024-11-13 15:14:36,006 INFO L78 Accepts]: Start accepts. Automaton has 119548 states and 187479 transitions. Word has length 102 [2024-11-13 15:14:36,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:36,007 INFO L471 AbstractCegarLoop]: Abstraction has 119548 states and 187479 transitions. [2024-11-13 15:14:36,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:36,007 INFO L276 IsEmpty]: Start isEmpty. Operand 119548 states and 187479 transitions. [2024-11-13 15:14:36,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 15:14:36,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:36,011 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:36,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 15:14:36,011 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:36,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:36,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1807507562, now seen corresponding path program 1 times [2024-11-13 15:14:36,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:36,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180834325] [2024-11-13 15:14:36,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:36,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:36,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:36,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180834325] [2024-11-13 15:14:36,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180834325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:36,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:36,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:36,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276001278] [2024-11-13 15:14:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:36,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:36,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:36,226 INFO L87 Difference]: Start difference. First operand 119548 states and 187479 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:37,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:37,772 INFO L93 Difference]: Finished difference Result 220888 states and 346711 transitions. [2024-11-13 15:14:37,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:37,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-13 15:14:37,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:37,984 INFO L225 Difference]: With dead ends: 220888 [2024-11-13 15:14:37,985 INFO L226 Difference]: Without dead ends: 101431 [2024-11-13 15:14:38,073 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 [2024-11-13 15:14:38,074 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 94 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:38,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 494 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:38,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101431 states. [2024-11-13 15:14:39,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101431 to 101201. [2024-11-13 15:14:39,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101201 states, 101200 states have (on average 1.5622727272727273) internal successors, (158102), 101200 states have internal predecessors, (158102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:40,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101201 states to 101201 states and 158102 transitions. [2024-11-13 15:14:40,067 INFO L78 Accepts]: Start accepts. Automaton has 101201 states and 158102 transitions. Word has length 103 [2024-11-13 15:14:40,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:40,067 INFO L471 AbstractCegarLoop]: Abstraction has 101201 states and 158102 transitions. [2024-11-13 15:14:40,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:40,071 INFO L276 IsEmpty]: Start isEmpty. Operand 101201 states and 158102 transitions. [2024-11-13 15:14:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 15:14:40,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:40,078 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:40,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 15:14:40,078 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:40,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:40,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1546485684, now seen corresponding path program 1 times [2024-11-13 15:14:40,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:40,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834237651] [2024-11-13 15:14:40,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:40,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:40,332 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:40,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:40,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834237651] [2024-11-13 15:14:40,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834237651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:40,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:40,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:40,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483266559] [2024-11-13 15:14:40,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:40,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:40,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:40,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:40,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:40,336 INFO L87 Difference]: Start difference. First operand 101201 states and 158102 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:41,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:41,362 INFO L93 Difference]: Finished difference Result 143673 states and 224582 transitions. [2024-11-13 15:14:41,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:41,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-13 15:14:41,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:41,452 INFO L225 Difference]: With dead ends: 143673 [2024-11-13 15:14:41,452 INFO L226 Difference]: Without dead ends: 42564 [2024-11-13 15:14:41,508 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 [2024-11-13 15:14:41,512 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 81 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:41,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 445 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42564 states. [2024-11-13 15:14:42,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42564 to 42494. [2024-11-13 15:14:42,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42494 states, 42493 states have (on average 1.5560915915562563) internal successors, (66123), 42493 states have internal predecessors, (66123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:42,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42494 states to 42494 states and 66123 transitions. [2024-11-13 15:14:42,743 INFO L78 Accepts]: Start accepts. Automaton has 42494 states and 66123 transitions. Word has length 103 [2024-11-13 15:14:42,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:42,744 INFO L471 AbstractCegarLoop]: Abstraction has 42494 states and 66123 transitions. [2024-11-13 15:14:42,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:42,744 INFO L276 IsEmpty]: Start isEmpty. Operand 42494 states and 66123 transitions. [2024-11-13 15:14:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 15:14:42,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:42,746 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:42,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 15:14:42,747 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:42,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:42,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1424886830, now seen corresponding path program 1 times [2024-11-13 15:14:42,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:42,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100802415] [2024-11-13 15:14:42,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:42,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:42,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:42,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100802415] [2024-11-13 15:14:42,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100802415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:42,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:42,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:42,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238024419] [2024-11-13 15:14:42,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:42,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:42,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:42,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:42,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:42,922 INFO L87 Difference]: Start difference. First operand 42494 states and 66123 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:43,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:43,149 INFO L93 Difference]: Finished difference Result 62280 states and 96987 transitions. [2024-11-13 15:14:43,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:43,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-13 15:14:43,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:43,186 INFO L225 Difference]: With dead ends: 62280 [2024-11-13 15:14:43,186 INFO L226 Difference]: Without dead ends: 19878 [2024-11-13 15:14:43,211 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 [2024-11-13 15:14:43,212 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 68 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:43,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 396 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:43,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19878 states. [2024-11-13 15:14:43,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19878 to 19872. [2024-11-13 15:14:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19872 states, 19871 states have (on average 1.550299431332092) internal successors, (30806), 19871 states have internal predecessors, (30806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:43,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19872 states to 19872 states and 30806 transitions. [2024-11-13 15:14:43,526 INFO L78 Accepts]: Start accepts. Automaton has 19872 states and 30806 transitions. Word has length 103 [2024-11-13 15:14:43,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:43,526 INFO L471 AbstractCegarLoop]: Abstraction has 19872 states and 30806 transitions. [2024-11-13 15:14:43,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:43,527 INFO L276 IsEmpty]: Start isEmpty. Operand 19872 states and 30806 transitions. [2024-11-13 15:14:43,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 15:14:43,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:43,528 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:43,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 15:14:43,529 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:43,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:43,529 INFO L85 PathProgramCache]: Analyzing trace with hash -242609529, now seen corresponding path program 1 times [2024-11-13 15:14:43,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:43,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269094423] [2024-11-13 15:14:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:43,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:44,008 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:14:44,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:44,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269094423] [2024-11-13 15:14:44,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269094423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:44,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:44,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:14:44,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103556909] [2024-11-13 15:14:44,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:44,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:14:44,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:44,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:14:44,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:44,012 INFO L87 Difference]: Start difference. First operand 19872 states and 30806 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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) [2024-11-13 15:14:44,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:44,563 INFO L93 Difference]: Finished difference Result 49012 states and 75988 transitions. [2024-11-13 15:14:44,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:14:44,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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 104 [2024-11-13 15:14:44,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:44,636 INFO L225 Difference]: With dead ends: 49012 [2024-11-13 15:14:44,636 INFO L226 Difference]: Without dead ends: 36548 [2024-11-13 15:14:44,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:44,657 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 409 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:44,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 634 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:44,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36548 states. [2024-11-13 15:14:45,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36548 to 31424. [2024-11-13 15:14:45,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31424 states, 31423 states have (on average 1.549279190401935) internal successors, (48683), 31423 states have internal predecessors, (48683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:45,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31424 states to 31424 states and 48683 transitions. [2024-11-13 15:14:45,450 INFO L78 Accepts]: Start accepts. Automaton has 31424 states and 48683 transitions. Word has length 104 [2024-11-13 15:14:45,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:45,450 INFO L471 AbstractCegarLoop]: Abstraction has 31424 states and 48683 transitions. [2024-11-13 15:14:45,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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) [2024-11-13 15:14:45,451 INFO L276 IsEmpty]: Start isEmpty. Operand 31424 states and 48683 transitions. [2024-11-13 15:14:45,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 15:14:45,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:45,453 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:45,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 15:14:45,453 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:45,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:45,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1432295037, now seen corresponding path program 1 times [2024-11-13 15:14:45,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:45,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603683217] [2024-11-13 15:14:45,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:45,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:46,071 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:14:46,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:46,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603683217] [2024-11-13 15:14:46,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603683217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:46,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:46,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:14:46,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053405960] [2024-11-13 15:14:46,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:46,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:14:46,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:46,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:14:46,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:14:46,073 INFO L87 Difference]: Start difference. First operand 31424 states and 48683 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:46,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:46,436 INFO L93 Difference]: Finished difference Result 75198 states and 116528 transitions. [2024-11-13 15:14:46,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:14:46,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 104 [2024-11-13 15:14:46,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:46,539 INFO L225 Difference]: With dead ends: 75198 [2024-11-13 15:14:46,540 INFO L226 Difference]: Without dead ends: 56370 [2024-11-13 15:14:46,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:14:46,567 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 420 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:46,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 626 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:46,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56370 states. [2024-11-13 15:14:47,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56370 to 49640. [2024-11-13 15:14:47,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49640 states, 49639 states have (on average 1.5488426438888776) internal successors, (76883), 49639 states have internal predecessors, (76883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49640 states to 49640 states and 76883 transitions. [2024-11-13 15:14:47,532 INFO L78 Accepts]: Start accepts. Automaton has 49640 states and 76883 transitions. Word has length 104 [2024-11-13 15:14:47,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:47,533 INFO L471 AbstractCegarLoop]: Abstraction has 49640 states and 76883 transitions. [2024-11-13 15:14:47,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:47,533 INFO L276 IsEmpty]: Start isEmpty. Operand 49640 states and 76883 transitions. [2024-11-13 15:14:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 15:14:47,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:47,535 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:47,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 15:14:47,536 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:47,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:47,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1024826191, now seen corresponding path program 1 times [2024-11-13 15:14:47,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:47,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554793493] [2024-11-13 15:14:47,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:47,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:47,673 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:47,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:47,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554793493] [2024-11-13 15:14:47,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554793493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:47,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:47,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:47,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764523109] [2024-11-13 15:14:47,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:47,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:47,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:47,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:47,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:47,675 INFO L87 Difference]: Start difference. First operand 49640 states and 76883 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:48,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:48,163 INFO L93 Difference]: Finished difference Result 146023 states and 225847 transitions. [2024-11-13 15:14:48,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:48,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-13 15:14:48,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:48,323 INFO L225 Difference]: With dead ends: 146023 [2024-11-13 15:14:48,324 INFO L226 Difference]: Without dead ends: 96476 [2024-11-13 15:14:48,759 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 [2024-11-13 15:14:48,760 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 171 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:48,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 543 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:14:48,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96476 states. [2024-11-13 15:14:49,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96476 to 96474. [2024-11-13 15:14:49,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96474 states, 96473 states have (on average 1.5357664838866834) internal successors, (148160), 96473 states have internal predecessors, (148160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:50,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96474 states to 96474 states and 148160 transitions. [2024-11-13 15:14:50,119 INFO L78 Accepts]: Start accepts. Automaton has 96474 states and 148160 transitions. Word has length 105 [2024-11-13 15:14:50,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:50,119 INFO L471 AbstractCegarLoop]: Abstraction has 96474 states and 148160 transitions. [2024-11-13 15:14:50,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:50,119 INFO L276 IsEmpty]: Start isEmpty. Operand 96474 states and 148160 transitions. [2024-11-13 15:14:50,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 15:14:50,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:50,121 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:50,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 15:14:50,121 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:50,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:50,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1315253317, now seen corresponding path program 1 times [2024-11-13 15:14:50,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:50,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329099992] [2024-11-13 15:14:50,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:50,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:50,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:50,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329099992] [2024-11-13 15:14:50,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329099992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:50,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:50,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:50,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68959486] [2024-11-13 15:14:50,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:50,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:50,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:50,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:50,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:50,243 INFO L87 Difference]: Start difference. First operand 96474 states and 148160 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:51,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:51,022 INFO L93 Difference]: Finished difference Result 283630 states and 434882 transitions. [2024-11-13 15:14:51,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:51,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-13 15:14:51,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:52,039 INFO L225 Difference]: With dead ends: 283630 [2024-11-13 15:14:52,039 INFO L226 Difference]: Without dead ends: 187297 [2024-11-13 15:14:52,094 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 [2024-11-13 15:14:52,094 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 152 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:52,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 514 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:52,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187297 states. [2024-11-13 15:14:54,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187297 to 187295. [2024-11-13 15:14:54,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187295 states, 187294 states have (on average 1.5219227524640404) internal successors, (285047), 187294 states have internal predecessors, (285047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:55,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187295 states to 187295 states and 285047 transitions. [2024-11-13 15:14:55,727 INFO L78 Accepts]: Start accepts. Automaton has 187295 states and 285047 transitions. Word has length 105 [2024-11-13 15:14:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:55,727 INFO L471 AbstractCegarLoop]: Abstraction has 187295 states and 285047 transitions. [2024-11-13 15:14:55,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:55,727 INFO L276 IsEmpty]: Start isEmpty. Operand 187295 states and 285047 transitions. [2024-11-13 15:14:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 15:14:55,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:55,729 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:55,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 15:14:55,729 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:55,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:55,730 INFO L85 PathProgramCache]: Analyzing trace with hash 644182188, now seen corresponding path program 1 times [2024-11-13 15:14:55,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:55,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936024713] [2024-11-13 15:14:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:55,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:55,810 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 15:14:55,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:55,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936024713] [2024-11-13 15:14:55,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936024713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:55,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:55,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:14:55,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375459321] [2024-11-13 15:14:55,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:55,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:14:55,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:55,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:55,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:55,812 INFO L87 Difference]: Start difference. First operand 187295 states and 285047 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 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) [2024-11-13 15:14:58,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:58,370 INFO L93 Difference]: Finished difference Result 463805 states and 704735 transitions. [2024-11-13 15:14:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:58,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 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 [2024-11-13 15:14:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:58,894 INFO L225 Difference]: With dead ends: 463805 [2024-11-13 15:14:58,894 INFO L226 Difference]: Without dead ends: 276785 [2024-11-13 15:14:58,986 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 [2024-11-13 15:14:58,987 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 114 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:58,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 441 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:59,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276785 states. [2024-11-13 15:15:02,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276785 to 189151. [2024-11-13 15:15:02,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189151 states, 189150 states have (on average 1.521675918583135) internal successors, (287825), 189150 states have internal predecessors, (287825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:15:03,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189151 states to 189151 states and 287825 transitions. [2024-11-13 15:15:03,266 INFO L78 Accepts]: Start accepts. Automaton has 189151 states and 287825 transitions. Word has length 106 [2024-11-13 15:15:03,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:15:03,266 INFO L471 AbstractCegarLoop]: Abstraction has 189151 states and 287825 transitions. [2024-11-13 15:15:03,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 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) [2024-11-13 15:15:03,267 INFO L276 IsEmpty]: Start isEmpty. Operand 189151 states and 287825 transitions. [2024-11-13 15:15:03,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 15:15:03,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:15:03,268 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:15:03,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 15:15:03,268 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:15:03,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:15:03,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1722028710, now seen corresponding path program 1 times [2024-11-13 15:15:03,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:15:03,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134139863] [2024-11-13 15:15:03,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:15:03,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:15:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:15:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 15:15:03,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:15:03,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134139863] [2024-11-13 15:15:03,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134139863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:15:03,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:15:03,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:15:03,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546095310] [2024-11-13 15:15:03,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:15:03,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:15:03,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:15:03,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:15:03,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:15:03,367 INFO L87 Difference]: Start difference. First operand 189151 states and 287825 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:15:05,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:15:05,718 INFO L93 Difference]: Finished difference Result 457695 states and 695683 transitions. [2024-11-13 15:15:05,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:15:05,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 [2024-11-13 15:15:05,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:15:06,081 INFO L225 Difference]: With dead ends: 457695 [2024-11-13 15:15:06,081 INFO L226 Difference]: Without dead ends: 268873 [2024-11-13 15:15:06,188 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 [2024-11-13 15:15:06,189 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 120 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:15:06,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 444 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:15:06,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268873 states.