./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1 --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 59df1758127560236621fddca0cfb7b951a4ad9d8bd949539c1385f0c08fd544 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:15:43,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:15:43,368 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:15:43,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:15:43,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:15:43,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:15:43,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:15:43,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:15:43,398 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:15:43,398 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:15:43,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:15:43,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:15:43,399 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:15:43,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:15:43,399 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:15:43,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:15:43,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:15:43,399 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:15:43,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:15:43,399 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:15:43,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:15:43,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:15:43,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:15:43,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:15:43,400 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:15:43,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:15:43,400 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:15:43,400 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:15:43,400 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:15:43,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:15:43,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:15:43,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:15:43,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:15:43,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:15:43,401 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:15:43,401 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:15:43,401 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:15:43,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:15:43,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:15:43,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:15:43,401 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:15:43,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:15:43,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:15:43,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:15:43,402 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:15:43,402 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:15:43,402 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:15:43,402 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:15:43,402 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_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1 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 -> 59df1758127560236621fddca0cfb7b951a4ad9d8bd949539c1385f0c08fd544 [2024-12-02 10:15:43,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:15:43,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:15:43,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:15:43,645 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:15:43,646 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:15:43,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2024-12-02 10:15:46,319 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/data/190dd5732/e1305cbad9d64a8183f8b769ac9c5c4b/FLAG087ce1988 [2024-12-02 10:15:46,547 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:15:46,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2024-12-02 10:15:46,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/data/190dd5732/e1305cbad9d64a8183f8b769ac9c5c4b/FLAG087ce1988 [2024-12-02 10:15:46,866 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/data/190dd5732/e1305cbad9d64a8183f8b769ac9c5c4b [2024-12-02 10:15:46,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:15:46,870 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:15:46,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:15:46,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:15:46,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:15:46,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:15:46" (1/1) ... [2024-12-02 10:15:46,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db255d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:46, skipping insertion in model container [2024-12-02 10:15:46,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:15:46" (1/1) ... [2024-12-02 10:15:46,910 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:15:47,138 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_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10527,10540] [2024-12-02 10:15:47,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:15:47,199 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:15:47,270 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_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10527,10540] [2024-12-02 10:15:47,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:15:47,321 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:15:47,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47 WrapperNode [2024-12-02 10:15:47,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:15:47,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:15:47,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:15:47,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:15:47,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,365 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 919 [2024-12-02 10:15:47,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:15:47,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:15:47,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:15:47,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:15:47,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,376 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,392 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]. [2024-12-02 10:15:47,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,404 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,405 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,414 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:15:47,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:15:47,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:15:47,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:15:47,429 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (1/1) ... [2024-12-02 10:15:47,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:15:47,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:47,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:15:47,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:15:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:15:47,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:15:47,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:15:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:15:47,596 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:15:47,597 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:15:48,269 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-12-02 10:15:48,269 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:15:48,282 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:15:48,283 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 10:15:48,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:15:48 BoogieIcfgContainer [2024-12-02 10:15:48,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:15:48,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:15:48,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:15:48,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:15:48,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:15:46" (1/3) ... [2024-12-02 10:15:48,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7115593a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:15:48, skipping insertion in model container [2024-12-02 10:15:48,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:47" (2/3) ... [2024-12-02 10:15:48,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7115593a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:15:48, skipping insertion in model container [2024-12-02 10:15:48,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:15:48" (3/3) ... [2024-12-02 10:15:48,292 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2024-12-02 10:15:48,306 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:15:48,309 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c that has 1 procedures, 202 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 10:15:48,364 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:15:48,374 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;@6e4c8db4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:15:48,374 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:15:48,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 200 states have (on average 1.765) internal successors, (353), 201 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:48,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 10:15:48,386 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:48,387 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:48,387 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:48,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:48,392 INFO L85 PathProgramCache]: Analyzing trace with hash -2055920229, now seen corresponding path program 1 times [2024-12-02 10:15:48,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:48,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058642375] [2024-12-02 10:15:48,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:48,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:49,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:49,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:49,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058642375] [2024-12-02 10:15:49,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058642375] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:49,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:49,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:15:49,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032002088] [2024-12-02 10:15:49,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:49,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:15:49,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:49,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:15:49,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:49,077 INFO L87 Difference]: Start difference. First operand has 202 states, 200 states have (on average 1.765) internal successors, (353), 201 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:49,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:49,798 INFO L93 Difference]: Finished difference Result 1459 states and 2342 transitions. [2024-12-02 10:15:49,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:15:49,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-12-02 10:15:49,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:49,815 INFO L225 Difference]: With dead ends: 1459 [2024-12-02 10:15:49,816 INFO L226 Difference]: Without dead ends: 1333 [2024-12-02 10:15:49,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:15:49,822 INFO L435 NwaCegarLoop]: 868 mSDtfsCounter, 2676 mSDsluCounter, 6172 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 7040 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:49,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 7040 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:15:49,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2024-12-02 10:15:49,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 304. [2024-12-02 10:15:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 1.4422442244224423) internal successors, (437), 303 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:49,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 437 transitions. [2024-12-02 10:15:49,881 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 437 transitions. Word has length 108 [2024-12-02 10:15:49,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:49,881 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 437 transitions. [2024-12-02 10:15:49,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 437 transitions. [2024-12-02 10:15:49,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:15:49,883 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:49,883 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:49,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:15:49,884 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:49,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:49,884 INFO L85 PathProgramCache]: Analyzing trace with hash -924120728, now seen corresponding path program 1 times [2024-12-02 10:15:49,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:49,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970503708] [2024-12-02 10:15:49,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:49,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:50,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:50,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970503708] [2024-12-02 10:15:50,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970503708] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:50,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:50,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:15:50,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511506549] [2024-12-02 10:15:50,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:50,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:15:50,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:50,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:15:50,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:50,273 INFO L87 Difference]: Start difference. First operand 304 states and 437 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:50,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:50,700 INFO L93 Difference]: Finished difference Result 1560 states and 2419 transitions. [2024-12-02 10:15:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:15:50,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 10:15:50,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:50,706 INFO L225 Difference]: With dead ends: 1560 [2024-12-02 10:15:50,707 INFO L226 Difference]: Without dead ends: 1400 [2024-12-02 10:15:50,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:15:50,709 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 1945 mSDsluCounter, 3187 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1945 SdHoareTripleChecker+Valid, 4018 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:50,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1945 Valid, 4018 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:15:50,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-12-02 10:15:50,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 483. [2024-12-02 10:15:50,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.495850622406639) internal successors, (721), 482 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:50,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 721 transitions. [2024-12-02 10:15:50,738 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 721 transitions. Word has length 110 [2024-12-02 10:15:50,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:50,738 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 721 transitions. [2024-12-02 10:15:50,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:50,739 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 721 transitions. [2024-12-02 10:15:50,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:15:50,741 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:50,741 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:50,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:15:50,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:50,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:50,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1292919580, now seen corresponding path program 1 times [2024-12-02 10:15:50,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:50,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493360546] [2024-12-02 10:15:50,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:50,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:51,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:51,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:51,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493360546] [2024-12-02 10:15:51,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493360546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:51,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:51,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:15:51,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968299351] [2024-12-02 10:15:51,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:51,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:15:51,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:51,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:15:51,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:51,087 INFO L87 Difference]: Start difference. First operand 483 states and 721 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:51,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:51,474 INFO L93 Difference]: Finished difference Result 1739 states and 2703 transitions. [2024-12-02 10:15:51,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:15:51,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 10:15:51,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:51,480 INFO L225 Difference]: With dead ends: 1739 [2024-12-02 10:15:51,480 INFO L226 Difference]: Without dead ends: 1579 [2024-12-02 10:15:51,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:15:51,482 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 1938 mSDsluCounter, 2650 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1938 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:51,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1938 Valid, 3372 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:51,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2024-12-02 10:15:51,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 741. [2024-12-02 10:15:51,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 740 states have (on average 1.527027027027027) internal successors, (1130), 740 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:51,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1130 transitions. [2024-12-02 10:15:51,503 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1130 transitions. Word has length 110 [2024-12-02 10:15:51,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:51,503 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 1130 transitions. [2024-12-02 10:15:51,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:51,503 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1130 transitions. [2024-12-02 10:15:51,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:15:51,505 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:51,505 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:51,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:15:51,505 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:51,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:51,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1295133060, now seen corresponding path program 1 times [2024-12-02 10:15:51,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:51,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196249639] [2024-12-02 10:15:51,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:51,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:51,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:51,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:51,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196249639] [2024-12-02 10:15:51,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196249639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:51,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:51,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:15:51,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172340750] [2024-12-02 10:15:51,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:51,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:15:51,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:51,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:15:51,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:51,754 INFO L87 Difference]: Start difference. First operand 741 states and 1130 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:52,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:52,085 INFO L93 Difference]: Finished difference Result 1913 states and 2979 transitions. [2024-12-02 10:15:52,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:15:52,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 10:15:52,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:52,090 INFO L225 Difference]: With dead ends: 1913 [2024-12-02 10:15:52,090 INFO L226 Difference]: Without dead ends: 1753 [2024-12-02 10:15:52,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:15:52,092 INFO L435 NwaCegarLoop]: 613 mSDtfsCounter, 2146 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:52,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 2706 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:52,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2024-12-02 10:15:52,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 915. [2024-12-02 10:15:52,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 914 states have (on average 1.538293216630197) internal successors, (1406), 914 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1406 transitions. [2024-12-02 10:15:52,116 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1406 transitions. Word has length 110 [2024-12-02 10:15:52,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:52,116 INFO L471 AbstractCegarLoop]: Abstraction has 915 states and 1406 transitions. [2024-12-02 10:15:52,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:52,117 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1406 transitions. [2024-12-02 10:15:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:15:52,118 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:52,118 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:52,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:15:52,118 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:52,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:52,119 INFO L85 PathProgramCache]: Analyzing trace with hash 722932112, now seen corresponding path program 1 times [2024-12-02 10:15:52,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:52,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98028562] [2024-12-02 10:15:52,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:52,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:52,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:52,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:52,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98028562] [2024-12-02 10:15:52,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98028562] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:52,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:52,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:15:52,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135949075] [2024-12-02 10:15:52,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:52,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:15:52,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:52,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:15:52,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:52,351 INFO L87 Difference]: Start difference. First operand 915 states and 1406 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:52,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:52,614 INFO L93 Difference]: Finished difference Result 2082 states and 3247 transitions. [2024-12-02 10:15:52,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:15:52,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 10:15:52,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:52,619 INFO L225 Difference]: With dead ends: 2082 [2024-12-02 10:15:52,619 INFO L226 Difference]: Without dead ends: 1922 [2024-12-02 10:15:52,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:15:52,621 INFO L435 NwaCegarLoop]: 496 mSDtfsCounter, 2346 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2346 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:52,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2346 Valid, 2685 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:52,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2024-12-02 10:15:52,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1079. [2024-12-02 10:15:52,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1078 states have (on average 1.5454545454545454) internal successors, (1666), 1078 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:52,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1666 transitions. [2024-12-02 10:15:52,644 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1666 transitions. Word has length 110 [2024-12-02 10:15:52,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:52,644 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1666 transitions. [2024-12-02 10:15:52,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:52,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1666 transitions. [2024-12-02 10:15:52,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:15:52,645 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:52,645 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:52,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:15:52,645 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:52,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:52,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1525369156, now seen corresponding path program 1 times [2024-12-02 10:15:52,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:52,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886748237] [2024-12-02 10:15:52,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:52,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:52,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:52,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:52,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886748237] [2024-12-02 10:15:52,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886748237] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:52,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:52,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:15:52,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318937357] [2024-12-02 10:15:52,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:52,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:15:52,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:52,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:15:52,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:52,832 INFO L87 Difference]: Start difference. First operand 1079 states and 1666 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:53,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:53,113 INFO L93 Difference]: Finished difference Result 2241 states and 3499 transitions. [2024-12-02 10:15:53,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:15:53,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 10:15:53,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:53,120 INFO L225 Difference]: With dead ends: 2241 [2024-12-02 10:15:53,120 INFO L226 Difference]: Without dead ends: 2081 [2024-12-02 10:15:53,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:15:53,122 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 2847 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2847 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:53,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2847 Valid, 2592 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:53,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2024-12-02 10:15:53,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 1238. [2024-12-02 10:15:53,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 1.5505254648342766) internal successors, (1918), 1237 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:53,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1918 transitions. [2024-12-02 10:15:53,158 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1918 transitions. Word has length 110 [2024-12-02 10:15:53,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:53,158 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1918 transitions. [2024-12-02 10:15:53,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:53,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1918 transitions. [2024-12-02 10:15:53,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:15:53,160 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:53,160 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:53,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:15:53,160 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:53,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:53,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1186267839, now seen corresponding path program 1 times [2024-12-02 10:15:53,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:53,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896813498] [2024-12-02 10:15:53,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:53,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:53,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:53,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:53,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896813498] [2024-12-02 10:15:53,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896813498] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:53,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:53,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:15:53,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272187801] [2024-12-02 10:15:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:53,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:15:53,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:53,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:15:53,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:53,645 INFO L87 Difference]: Start difference. First operand 1238 states and 1918 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:54,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:54,021 INFO L93 Difference]: Finished difference Result 2269 states and 3552 transitions. [2024-12-02 10:15:54,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:15:54,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 10:15:54,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:54,026 INFO L225 Difference]: With dead ends: 2269 [2024-12-02 10:15:54,026 INFO L226 Difference]: Without dead ends: 1240 [2024-12-02 10:15:54,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:15:54,027 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 656 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:54,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1235 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:54,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2024-12-02 10:15:54,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1238. [2024-12-02 10:15:54,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 1.5448666127728374) internal successors, (1911), 1237 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1911 transitions. [2024-12-02 10:15:54,054 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1911 transitions. Word has length 110 [2024-12-02 10:15:54,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:54,055 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1911 transitions. [2024-12-02 10:15:54,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:54,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1911 transitions. [2024-12-02 10:15:54,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:15:54,056 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:54,056 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:54,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:15:54,056 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:54,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:54,057 INFO L85 PathProgramCache]: Analyzing trace with hash 943143488, now seen corresponding path program 1 times [2024-12-02 10:15:54,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:54,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248415129] [2024-12-02 10:15:54,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:54,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:54,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:54,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:54,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248415129] [2024-12-02 10:15:54,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248415129] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:54,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:54,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:15:54,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093040209] [2024-12-02 10:15:54,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:54,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:15:54,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:54,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:15:54,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:15:54,150 INFO L87 Difference]: Start difference. First operand 1238 states and 1911 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:54,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:54,179 INFO L93 Difference]: Finished difference Result 3212 states and 5022 transitions. [2024-12-02 10:15:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:15:54,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 10:15:54,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:54,185 INFO L225 Difference]: With dead ends: 3212 [2024-12-02 10:15:54,185 INFO L226 Difference]: Without dead ends: 2183 [2024-12-02 10:15:54,186 INFO L434 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 [2024-12-02 10:15:54,187 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 115 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:54,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 640 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:15:54,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2024-12-02 10:15:54,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 2181. [2024-12-02 10:15:54,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.5454128440366972) internal successors, (3369), 2180 states have internal predecessors, (3369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:54,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3369 transitions. [2024-12-02 10:15:54,234 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3369 transitions. Word has length 110 [2024-12-02 10:15:54,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:54,234 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3369 transitions. [2024-12-02 10:15:54,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:54,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3369 transitions. [2024-12-02 10:15:54,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:15:54,236 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:54,236 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:54,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:15:54,236 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:54,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:54,236 INFO L85 PathProgramCache]: Analyzing trace with hash 2091479554, now seen corresponding path program 1 times [2024-12-02 10:15:54,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:54,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789032899] [2024-12-02 10:15:54,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:54,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:54,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:54,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789032899] [2024-12-02 10:15:54,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789032899] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:54,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:54,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:15:54,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255448894] [2024-12-02 10:15:54,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:54,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:15:54,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:54,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:15:54,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:54,515 INFO L87 Difference]: Start difference. First operand 2181 states and 3369 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:54,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:54,831 INFO L93 Difference]: Finished difference Result 4357 states and 6769 transitions. [2024-12-02 10:15:54,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:15:54,832 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 10:15:54,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:54,844 INFO L225 Difference]: With dead ends: 4357 [2024-12-02 10:15:54,844 INFO L226 Difference]: Without dead ends: 4052 [2024-12-02 10:15:54,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:15:54,847 INFO L435 NwaCegarLoop]: 488 mSDtfsCounter, 2149 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:54,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 2975 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:54,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2024-12-02 10:15:54,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 2484. [2024-12-02 10:15:54,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 2483 states have (on average 1.5477245267821185) internal successors, (3843), 2483 states have internal predecessors, (3843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:54,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3843 transitions. [2024-12-02 10:15:54,920 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3843 transitions. Word has length 110 [2024-12-02 10:15:54,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:54,920 INFO L471 AbstractCegarLoop]: Abstraction has 2484 states and 3843 transitions. [2024-12-02 10:15:54,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:54,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3843 transitions. [2024-12-02 10:15:54,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 10:15:54,922 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:54,922 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:54,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:15:54,922 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:54,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:54,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1690423504, now seen corresponding path program 1 times [2024-12-02 10:15:54,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:54,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240849281] [2024-12-02 10:15:54,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:54,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:55,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:55,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240849281] [2024-12-02 10:15:55,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240849281] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:55,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:55,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:15:55,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647896391] [2024-12-02 10:15:55,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:55,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:15:55,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:55,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:15:55,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:15:55,199 INFO L87 Difference]: Start difference. First operand 2484 states and 3843 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:55,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:55,502 INFO L93 Difference]: Finished difference Result 4666 states and 7252 transitions. [2024-12-02 10:15:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:15:55,503 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 10:15:55,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:55,515 INFO L225 Difference]: With dead ends: 4666 [2024-12-02 10:15:55,515 INFO L226 Difference]: Without dead ends: 4361 [2024-12-02 10:15:55,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:15:55,517 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 2199 mSDsluCounter, 3271 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:55,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2199 Valid, 3676 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:55,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2024-12-02 10:15:55,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 2798. [2024-12-02 10:15:55,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 1.5495173400071505) internal successors, (4334), 2797 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:55,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4334 transitions. [2024-12-02 10:15:55,587 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4334 transitions. Word has length 110 [2024-12-02 10:15:55,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:55,588 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 4334 transitions. [2024-12-02 10:15:55,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:55,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4334 transitions. [2024-12-02 10:15:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 10:15:55,589 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:55,589 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:55,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:15:55,589 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:55,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:55,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1882311825, now seen corresponding path program 1 times [2024-12-02 10:15:55,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:55,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754030978] [2024-12-02 10:15:55,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:55,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:55,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:55,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754030978] [2024-12-02 10:15:55,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754030978] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:55,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:55,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:15:55,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245686994] [2024-12-02 10:15:55,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:55,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:15:55,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:55,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:15:55,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:55,730 INFO L87 Difference]: Start difference. First operand 2798 states and 4334 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:56,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:56,002 INFO L93 Difference]: Finished difference Result 8214 states and 12793 transitions. [2024-12-02 10:15:56,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:15:56,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-12-02 10:15:56,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:56,017 INFO L225 Difference]: With dead ends: 8214 [2024-12-02 10:15:56,018 INFO L226 Difference]: Without dead ends: 5473 [2024-12-02 10:15:56,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:56,022 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 1078 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:56,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 237 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:56,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2024-12-02 10:15:56,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 5471. [2024-12-02 10:15:56,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 1.5504570383912248) internal successors, (8481), 5470 states have internal predecessors, (8481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:56,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 8481 transitions. [2024-12-02 10:15:56,120 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 8481 transitions. Word has length 111 [2024-12-02 10:15:56,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:56,120 INFO L471 AbstractCegarLoop]: Abstraction has 5471 states and 8481 transitions. [2024-12-02 10:15:56,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:56,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 8481 transitions. [2024-12-02 10:15:56,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 10:15:56,122 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:56,122 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:56,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:15:56,122 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:56,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:56,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1093414131, now seen corresponding path program 1 times [2024-12-02 10:15:56,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:56,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253781117] [2024-12-02 10:15:56,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:56,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:56,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:56,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:56,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253781117] [2024-12-02 10:15:56,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253781117] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:56,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:56,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:15:56,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384216859] [2024-12-02 10:15:56,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:56,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:15:56,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:56,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:15:56,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:56,258 INFO L87 Difference]: Start difference. First operand 5471 states and 8481 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:56,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:56,454 INFO L93 Difference]: Finished difference Result 10869 states and 16885 transitions. [2024-12-02 10:15:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:15:56,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-12-02 10:15:56,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:56,466 INFO L225 Difference]: With dead ends: 10869 [2024-12-02 10:15:56,467 INFO L226 Difference]: Without dead ends: 5471 [2024-12-02 10:15:56,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:56,471 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 694 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:56,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 181 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:56,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5471 states. [2024-12-02 10:15:56,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5471 to 5471. [2024-12-02 10:15:56,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 1.5378427787934186) internal successors, (8412), 5470 states have internal predecessors, (8412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:56,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 8412 transitions. [2024-12-02 10:15:56,559 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 8412 transitions. Word has length 112 [2024-12-02 10:15:56,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:56,559 INFO L471 AbstractCegarLoop]: Abstraction has 5471 states and 8412 transitions. [2024-12-02 10:15:56,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:56,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 8412 transitions. [2024-12-02 10:15:56,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 10:15:56,561 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:56,561 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:56,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:15:56,561 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:56,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:56,562 INFO L85 PathProgramCache]: Analyzing trace with hash 596896751, now seen corresponding path program 1 times [2024-12-02 10:15:56,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:56,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691706107] [2024-12-02 10:15:56,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:56,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:56,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:56,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:56,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691706107] [2024-12-02 10:15:56,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691706107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:56,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:56,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:15:56,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671149513] [2024-12-02 10:15:56,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:56,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:15:56,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:56,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:15:56,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:56,694 INFO L87 Difference]: Start difference. First operand 5471 states and 8412 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:56,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:56,869 INFO L93 Difference]: Finished difference Result 10861 states and 16738 transitions. [2024-12-02 10:15:56,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:15:56,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2024-12-02 10:15:56,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:56,880 INFO L225 Difference]: With dead ends: 10861 [2024-12-02 10:15:56,880 INFO L226 Difference]: Without dead ends: 5471 [2024-12-02 10:15:56,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:56,886 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 666 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:56,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 201 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:56,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5471 states. [2024-12-02 10:15:56,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5471 to 5471. [2024-12-02 10:15:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 1.5252285191956125) internal successors, (8343), 5470 states have internal predecessors, (8343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:56,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 8343 transitions. [2024-12-02 10:15:56,959 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 8343 transitions. Word has length 113 [2024-12-02 10:15:56,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:56,959 INFO L471 AbstractCegarLoop]: Abstraction has 5471 states and 8343 transitions. [2024-12-02 10:15:56,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:56,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 8343 transitions. [2024-12-02 10:15:56,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 10:15:56,962 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:56,962 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:56,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:15:56,963 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:56,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:56,963 INFO L85 PathProgramCache]: Analyzing trace with hash 914047091, now seen corresponding path program 1 times [2024-12-02 10:15:56,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:56,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154203676] [2024-12-02 10:15:56,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:56,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:57,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:57,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:57,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154203676] [2024-12-02 10:15:57,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154203676] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:57,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:57,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:15:57,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384922451] [2024-12-02 10:15:57,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:57,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:15:57,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:57,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:15:57,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:57,107 INFO L87 Difference]: Start difference. First operand 5471 states and 8343 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:57,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:57,266 INFO L93 Difference]: Finished difference Result 10873 states and 16614 transitions. [2024-12-02 10:15:57,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:15:57,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-12-02 10:15:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:57,277 INFO L225 Difference]: With dead ends: 10873 [2024-12-02 10:15:57,277 INFO L226 Difference]: Without dead ends: 5471 [2024-12-02 10:15:57,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:57,282 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 693 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:57,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 173 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:57,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5471 states. [2024-12-02 10:15:57,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5471 to 5471. [2024-12-02 10:15:57,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 1.5126142595978063) internal successors, (8274), 5470 states have internal predecessors, (8274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:57,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 8274 transitions. [2024-12-02 10:15:57,354 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 8274 transitions. Word has length 114 [2024-12-02 10:15:57,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:57,354 INFO L471 AbstractCegarLoop]: Abstraction has 5471 states and 8274 transitions. [2024-12-02 10:15:57,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:57,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 8274 transitions. [2024-12-02 10:15:57,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 10:15:57,356 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:57,356 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:57,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:15:57,356 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:57,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:57,357 INFO L85 PathProgramCache]: Analyzing trace with hash -932538653, now seen corresponding path program 1 times [2024-12-02 10:15:57,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:57,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963956082] [2024-12-02 10:15:57,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:57,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:57,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:57,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963956082] [2024-12-02 10:15:57,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963956082] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:57,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:57,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:15:57,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945236915] [2024-12-02 10:15:57,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:57,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:15:57,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:57,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:15:57,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:57,478 INFO L87 Difference]: Start difference. First operand 5471 states and 8274 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:57,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:57,634 INFO L93 Difference]: Finished difference Result 10881 states and 16486 transitions. [2024-12-02 10:15:57,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:15:57,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-12-02 10:15:57,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:57,644 INFO L225 Difference]: With dead ends: 10881 [2024-12-02 10:15:57,644 INFO L226 Difference]: Without dead ends: 5471 [2024-12-02 10:15:57,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:57,648 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 709 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:57,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 157 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:57,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5471 states. [2024-12-02 10:15:57,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5471 to 5471. [2024-12-02 10:15:57,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 1.5) internal successors, (8205), 5470 states have internal predecessors, (8205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:57,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 8205 transitions. [2024-12-02 10:15:57,720 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 8205 transitions. Word has length 115 [2024-12-02 10:15:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:57,720 INFO L471 AbstractCegarLoop]: Abstraction has 5471 states and 8205 transitions. [2024-12-02 10:15:57,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 8205 transitions. [2024-12-02 10:15:57,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 10:15:57,722 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:57,722 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:57,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:15:57,722 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:57,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:57,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1866315149, now seen corresponding path program 1 times [2024-12-02 10:15:57,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:57,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957326093] [2024-12-02 10:15:57,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:57,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:57,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:57,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:57,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957326093] [2024-12-02 10:15:57,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957326093] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:57,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:57,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:15:57,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381679608] [2024-12-02 10:15:57,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:57,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:15:57,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:57,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:15:57,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:57,865 INFO L87 Difference]: Start difference. First operand 5471 states and 8205 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:58,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:58,028 INFO L93 Difference]: Finished difference Result 10877 states and 16344 transitions. [2024-12-02 10:15:58,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:15:58,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-12-02 10:15:58,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:58,036 INFO L225 Difference]: With dead ends: 10877 [2024-12-02 10:15:58,036 INFO L226 Difference]: Without dead ends: 5471 [2024-12-02 10:15:58,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:58,041 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 691 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:58,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 165 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:58,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5471 states. [2024-12-02 10:15:58,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5471 to 5471. [2024-12-02 10:15:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 1.4873857404021937) internal successors, (8136), 5470 states have internal predecessors, (8136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:58,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 8136 transitions. [2024-12-02 10:15:58,119 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 8136 transitions. Word has length 116 [2024-12-02 10:15:58,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:58,119 INFO L471 AbstractCegarLoop]: Abstraction has 5471 states and 8136 transitions. [2024-12-02 10:15:58,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:58,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 8136 transitions. [2024-12-02 10:15:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 10:15:58,121 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:58,121 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:58,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:15:58,121 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:58,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:58,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1607436073, now seen corresponding path program 1 times [2024-12-02 10:15:58,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:58,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696597459] [2024-12-02 10:15:58,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:58,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:58,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:58,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696597459] [2024-12-02 10:15:58,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696597459] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:58,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:58,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:15:58,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688515841] [2024-12-02 10:15:58,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:58,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:15:58,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:58,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:15:58,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:58,242 INFO L87 Difference]: Start difference. First operand 5471 states and 8136 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:58,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:58,412 INFO L93 Difference]: Finished difference Result 10865 states and 16194 transitions. [2024-12-02 10:15:58,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:15:58,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-12-02 10:15:58,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:58,422 INFO L225 Difference]: With dead ends: 10865 [2024-12-02 10:15:58,422 INFO L226 Difference]: Without dead ends: 5471 [2024-12-02 10:15:58,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:58,427 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 649 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:58,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 189 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:58,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5471 states. [2024-12-02 10:15:58,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5471 to 5471. [2024-12-02 10:15:58,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 1.4747714808043875) internal successors, (8067), 5470 states have internal predecessors, (8067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:58,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 8067 transitions. [2024-12-02 10:15:58,503 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 8067 transitions. Word has length 117 [2024-12-02 10:15:58,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:58,503 INFO L471 AbstractCegarLoop]: Abstraction has 5471 states and 8067 transitions. [2024-12-02 10:15:58,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:58,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 8067 transitions. [2024-12-02 10:15:58,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 10:15:58,505 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:58,505 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:58,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 10:15:58,505 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:15:58,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:58,506 INFO L85 PathProgramCache]: Analyzing trace with hash 154166167, now seen corresponding path program 1 times [2024-12-02 10:15:58,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:58,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832619793] [2024-12-02 10:15:58,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:58,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:59,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:59,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832619793] [2024-12-02 10:15:59,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832619793] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:59,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:59,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:15:59,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840607951] [2024-12-02 10:15:59,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:59,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:15:59,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:59,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:15:59,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:15:59,190 INFO L87 Difference]: Start difference. First operand 5471 states and 8067 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:00,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:00,074 INFO L93 Difference]: Finished difference Result 16096 states and 23719 transitions. [2024-12-02 10:16:00,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:16:00,075 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-12-02 10:16:00,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:00,091 INFO L225 Difference]: With dead ends: 16096 [2024-12-02 10:16:00,091 INFO L226 Difference]: Without dead ends: 10874 [2024-12-02 10:16:00,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:16:00,098 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1079 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:00,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 933 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:16:00,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10874 states. [2024-12-02 10:16:00,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10874 to 5471. [2024-12-02 10:16:00,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 1.4727605118829983) internal successors, (8056), 5470 states have internal predecessors, (8056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:00,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 8056 transitions. [2024-12-02 10:16:00,228 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 8056 transitions. Word has length 118 [2024-12-02 10:16:00,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:00,228 INFO L471 AbstractCegarLoop]: Abstraction has 5471 states and 8056 transitions. [2024-12-02 10:16:00,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:00,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 8056 transitions. [2024-12-02 10:16:00,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:16:00,230 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:00,230 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:00,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:16:00,230 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:00,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:00,231 INFO L85 PathProgramCache]: Analyzing trace with hash 461834997, now seen corresponding path program 1 times [2024-12-02 10:16:00,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:00,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019186471] [2024-12-02 10:16:00,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:00,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:00,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:00,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:00,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019186471] [2024-12-02 10:16:00,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019186471] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:00,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:00,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:16:00,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064911157] [2024-12-02 10:16:00,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:00,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:16:00,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:00,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:16:00,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:16:00,778 INFO L87 Difference]: Start difference. First operand 5471 states and 8056 transitions. Second operand has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:01,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:01,600 INFO L93 Difference]: Finished difference Result 16493 states and 24162 transitions. [2024-12-02 10:16:01,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 10:16:01,601 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-12-02 10:16:01,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:01,611 INFO L225 Difference]: With dead ends: 16493 [2024-12-02 10:16:01,611 INFO L226 Difference]: Without dead ends: 11339 [2024-12-02 10:16:01,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-12-02 10:16:01,615 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 1200 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:01,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 1032 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:16:01,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11339 states. [2024-12-02 10:16:01,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11339 to 5668. [2024-12-02 10:16:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5668 states, 5667 states have (on average 1.4723839774130933) internal successors, (8344), 5667 states have internal predecessors, (8344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:01,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5668 states to 5668 states and 8344 transitions. [2024-12-02 10:16:01,721 INFO L78 Accepts]: Start accepts. Automaton has 5668 states and 8344 transitions. Word has length 119 [2024-12-02 10:16:01,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:01,721 INFO L471 AbstractCegarLoop]: Abstraction has 5668 states and 8344 transitions. [2024-12-02 10:16:01,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:01,721 INFO L276 IsEmpty]: Start isEmpty. Operand 5668 states and 8344 transitions. [2024-12-02 10:16:01,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:16:01,723 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:01,723 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:01,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 10:16:01,723 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:01,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:01,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1766543503, now seen corresponding path program 1 times [2024-12-02 10:16:01,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:01,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358377096] [2024-12-02 10:16:01,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:01,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:02,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:02,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:02,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358377096] [2024-12-02 10:16:02,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358377096] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:02,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:02,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:16:02,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088976590] [2024-12-02 10:16:02,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:02,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:16:02,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:02,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:16:02,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:16:02,194 INFO L87 Difference]: Start difference. First operand 5668 states and 8344 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:02,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:02,824 INFO L93 Difference]: Finished difference Result 16621 states and 24460 transitions. [2024-12-02 10:16:02,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:16:02,825 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-12-02 10:16:02,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:02,831 INFO L225 Difference]: With dead ends: 16621 [2024-12-02 10:16:02,831 INFO L226 Difference]: Without dead ends: 11235 [2024-12-02 10:16:02,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:16:02,836 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1550 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:02,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 766 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:16:02,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11235 states. [2024-12-02 10:16:02,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11235 to 5668. [2024-12-02 10:16:02,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5668 states, 5667 states have (on average 1.4697370742897478) internal successors, (8329), 5667 states have internal predecessors, (8329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:02,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5668 states to 5668 states and 8329 transitions. [2024-12-02 10:16:02,904 INFO L78 Accepts]: Start accepts. Automaton has 5668 states and 8329 transitions. Word has length 119 [2024-12-02 10:16:02,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:02,904 INFO L471 AbstractCegarLoop]: Abstraction has 5668 states and 8329 transitions. [2024-12-02 10:16:02,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:02,905 INFO L276 IsEmpty]: Start isEmpty. Operand 5668 states and 8329 transitions. [2024-12-02 10:16:02,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 10:16:02,906 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:02,906 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:02,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 10:16:02,906 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:02,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:02,907 INFO L85 PathProgramCache]: Analyzing trace with hash 227012976, now seen corresponding path program 1 times [2024-12-02 10:16:02,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:02,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857868123] [2024-12-02 10:16:02,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:02,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:03,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:03,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:03,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857868123] [2024-12-02 10:16:03,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857868123] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:03,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:03,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:16:03,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001312779] [2024-12-02 10:16:03,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:03,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:16:03,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:03,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:16:03,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:16:03,129 INFO L87 Difference]: Start difference. First operand 5668 states and 8329 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:03,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:03,546 INFO L93 Difference]: Finished difference Result 16157 states and 23833 transitions. [2024-12-02 10:16:03,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:16:03,546 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2024-12-02 10:16:03,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:03,556 INFO L225 Difference]: With dead ends: 16157 [2024-12-02 10:16:03,556 INFO L226 Difference]: Without dead ends: 10822 [2024-12-02 10:16:03,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:16:03,561 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 1220 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:03,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 640 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:16:03,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2024-12-02 10:16:03,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 5668. [2024-12-02 10:16:03,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5668 states, 5667 states have (on average 1.4695606140815247) internal successors, (8328), 5667 states have internal predecessors, (8328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:03,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5668 states to 5668 states and 8328 transitions. [2024-12-02 10:16:03,709 INFO L78 Accepts]: Start accepts. Automaton has 5668 states and 8328 transitions. Word has length 120 [2024-12-02 10:16:03,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:03,710 INFO L471 AbstractCegarLoop]: Abstraction has 5668 states and 8328 transitions. [2024-12-02 10:16:03,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:03,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5668 states and 8328 transitions. [2024-12-02 10:16:03,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:16:03,712 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:03,713 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:03,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 10:16:03,713 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:03,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:03,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1749784172, now seen corresponding path program 1 times [2024-12-02 10:16:03,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:03,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498825065] [2024-12-02 10:16:03,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:03,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:04,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:04,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498825065] [2024-12-02 10:16:04,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498825065] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:04,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:04,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:16:04,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884270865] [2024-12-02 10:16:04,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:04,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:16:04,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:04,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:16:04,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:16:04,078 INFO L87 Difference]: Start difference. First operand 5668 states and 8328 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:04,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:04,583 INFO L93 Difference]: Finished difference Result 16393 states and 24082 transitions. [2024-12-02 10:16:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:16:04,583 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 10:16:04,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:04,589 INFO L225 Difference]: With dead ends: 16393 [2024-12-02 10:16:04,589 INFO L226 Difference]: Without dead ends: 11239 [2024-12-02 10:16:04,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:16:04,594 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1069 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:04,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 685 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:16:04,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11239 states. [2024-12-02 10:16:04,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11239 to 5516. [2024-12-02 10:16:04,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5516 states, 5515 states have (on average 1.4698096101541251) internal successors, (8106), 5515 states have internal predecessors, (8106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5516 states to 5516 states and 8106 transitions. [2024-12-02 10:16:04,705 INFO L78 Accepts]: Start accepts. Automaton has 5516 states and 8106 transitions. Word has length 121 [2024-12-02 10:16:04,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:04,706 INFO L471 AbstractCegarLoop]: Abstraction has 5516 states and 8106 transitions. [2024-12-02 10:16:04,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:04,706 INFO L276 IsEmpty]: Start isEmpty. Operand 5516 states and 8106 transitions. [2024-12-02 10:16:04,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:16:04,707 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:04,707 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:04,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 10:16:04,707 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:04,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:04,707 INFO L85 PathProgramCache]: Analyzing trace with hash 183860838, now seen corresponding path program 1 times [2024-12-02 10:16:04,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:04,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588454810] [2024-12-02 10:16:04,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:04,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:05,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:05,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588454810] [2024-12-02 10:16:05,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588454810] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:05,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:05,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:16:05,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721313132] [2024-12-02 10:16:05,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:05,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:16:05,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:05,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:16:05,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:16:05,067 INFO L87 Difference]: Start difference. First operand 5516 states and 8106 transitions. Second operand has 14 states, 14 states have (on average 8.642857142857142) internal successors, (121), 13 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:05,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:05,967 INFO L93 Difference]: Finished difference Result 16504 states and 24172 transitions. [2024-12-02 10:16:05,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:16:05,968 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.642857142857142) internal successors, (121), 13 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 10:16:05,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:05,975 INFO L225 Difference]: With dead ends: 16504 [2024-12-02 10:16:05,975 INFO L226 Difference]: Without dead ends: 11216 [2024-12-02 10:16:05,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:16:05,979 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 567 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:05,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1594 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:16:05,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11216 states. [2024-12-02 10:16:06,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11216 to 5525. [2024-12-02 10:16:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5525 states, 5524 states have (on average 1.469044170890659) internal successors, (8115), 5524 states have internal predecessors, (8115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 8115 transitions. [2024-12-02 10:16:06,066 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 8115 transitions. Word has length 121 [2024-12-02 10:16:06,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:06,066 INFO L471 AbstractCegarLoop]: Abstraction has 5525 states and 8115 transitions. [2024-12-02 10:16:06,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.642857142857142) internal successors, (121), 13 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:06,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 8115 transitions. [2024-12-02 10:16:06,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 10:16:06,067 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:06,067 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:06,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 10:16:06,067 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:06,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:06,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1664637931, now seen corresponding path program 1 times [2024-12-02 10:16:06,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:06,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660033524] [2024-12-02 10:16:06,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:06,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:06,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:06,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660033524] [2024-12-02 10:16:06,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660033524] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:06,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:06,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:16:06,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962410901] [2024-12-02 10:16:06,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:06,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:16:06,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:06,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:16:06,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:16:06,570 INFO L87 Difference]: Start difference. First operand 5525 states and 8115 transitions. Second operand has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:07,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:07,729 INFO L93 Difference]: Finished difference Result 32776 states and 48111 transitions. [2024-12-02 10:16:07,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 10:16:07,729 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-12-02 10:16:07,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:07,746 INFO L225 Difference]: With dead ends: 32776 [2024-12-02 10:16:07,746 INFO L226 Difference]: Without dead ends: 27440 [2024-12-02 10:16:07,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2024-12-02 10:16:07,753 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 3608 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:07,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3608 Valid, 1231 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:16:07,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27440 states. [2024-12-02 10:16:07,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27440 to 5525. [2024-12-02 10:16:07,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5525 states, 5524 states have (on average 1.4685010861694425) internal successors, (8112), 5524 states have internal predecessors, (8112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 8112 transitions. [2024-12-02 10:16:07,864 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 8112 transitions. Word has length 122 [2024-12-02 10:16:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:07,864 INFO L471 AbstractCegarLoop]: Abstraction has 5525 states and 8112 transitions. [2024-12-02 10:16:07,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 8112 transitions. [2024-12-02 10:16:07,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 10:16:07,865 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:07,865 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:07,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 10:16:07,865 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:07,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:07,865 INFO L85 PathProgramCache]: Analyzing trace with hash -352302304, now seen corresponding path program 1 times [2024-12-02 10:16:07,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:07,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148382142] [2024-12-02 10:16:07,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:07,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:08,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:08,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:08,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148382142] [2024-12-02 10:16:08,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148382142] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:08,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:08,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:16:08,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49976999] [2024-12-02 10:16:08,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:08,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:16:08,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:08,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:16:08,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:16:08,289 INFO L87 Difference]: Start difference. First operand 5525 states and 8112 transitions. Second operand has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 11 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:09,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:09,326 INFO L93 Difference]: Finished difference Result 13817 states and 20274 transitions. [2024-12-02 10:16:09,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:16:09,326 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 11 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-12-02 10:16:09,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:09,331 INFO L225 Difference]: With dead ends: 13817 [2024-12-02 10:16:09,331 INFO L226 Difference]: Without dead ends: 8466 [2024-12-02 10:16:09,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2024-12-02 10:16:09,334 INFO L435 NwaCegarLoop]: 306 mSDtfsCounter, 1065 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:09,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 1716 Invalid, 1545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:16:09,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8466 states. [2024-12-02 10:16:09,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8466 to 5525. [2024-12-02 10:16:09,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5525 states, 5524 states have (on average 1.4679580014482259) internal successors, (8109), 5524 states have internal predecessors, (8109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:09,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 8109 transitions. [2024-12-02 10:16:09,389 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 8109 transitions. Word has length 122 [2024-12-02 10:16:09,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:09,389 INFO L471 AbstractCegarLoop]: Abstraction has 5525 states and 8109 transitions. [2024-12-02 10:16:09,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 11 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:09,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 8109 transitions. [2024-12-02 10:16:09,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:16:09,390 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:09,390 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:09,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 10:16:09,390 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:09,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:09,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1692852677, now seen corresponding path program 1 times [2024-12-02 10:16:09,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:09,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833511408] [2024-12-02 10:16:09,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:09,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:09,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:09,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:09,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833511408] [2024-12-02 10:16:09,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833511408] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:09,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:09,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:16:09,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657598986] [2024-12-02 10:16:09,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:09,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:16:09,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:09,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:16:09,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:16:09,720 INFO L87 Difference]: Start difference. First operand 5525 states and 8109 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:10,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:10,276 INFO L93 Difference]: Finished difference Result 16128 states and 23705 transitions. [2024-12-02 10:16:10,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:16:10,277 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-12-02 10:16:10,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:10,285 INFO L225 Difference]: With dead ends: 16128 [2024-12-02 10:16:10,285 INFO L226 Difference]: Without dead ends: 10922 [2024-12-02 10:16:10,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:16:10,289 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 1111 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:10,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 914 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:16:10,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10922 states. [2024-12-02 10:16:10,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10922 to 5525. [2024-12-02 10:16:10,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5525 states, 5524 states have (on average 1.4656046343229543) internal successors, (8096), 5524 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:10,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 8096 transitions. [2024-12-02 10:16:10,382 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 8096 transitions. Word has length 123 [2024-12-02 10:16:10,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:10,383 INFO L471 AbstractCegarLoop]: Abstraction has 5525 states and 8096 transitions. [2024-12-02 10:16:10,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:10,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 8096 transitions. [2024-12-02 10:16:10,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 10:16:10,383 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:10,383 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:10,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 10:16:10,384 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:10,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:10,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1094727144, now seen corresponding path program 1 times [2024-12-02 10:16:10,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:10,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125526373] [2024-12-02 10:16:10,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:10,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:14,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:14,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125526373] [2024-12-02 10:16:14,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125526373] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:14,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:14,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2024-12-02 10:16:14,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484767757] [2024-12-02 10:16:14,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:14,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-12-02 10:16:14,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:14,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-12-02 10:16:14,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1861, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 10:16:14,213 INFO L87 Difference]: Start difference. First operand 5525 states and 8096 transitions. Second operand has 45 states, 45 states have (on average 2.7555555555555555) internal successors, (124), 45 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:30,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:30,249 INFO L93 Difference]: Finished difference Result 11190 states and 16426 transitions. [2024-12-02 10:16:30,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-12-02 10:16:30,249 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.7555555555555555) internal successors, (124), 45 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 10:16:30,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:30,255 INFO L225 Difference]: With dead ends: 11190 [2024-12-02 10:16:30,255 INFO L226 Difference]: Without dead ends: 9976 [2024-12-02 10:16:30,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=999, Invalid=6311, Unknown=0, NotChecked=0, Total=7310 [2024-12-02 10:16:30,257 INFO L435 NwaCegarLoop]: 873 mSDtfsCounter, 2342 mSDsluCounter, 21903 mSDsCounter, 0 mSdLazyCounter, 15555 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2342 SdHoareTripleChecker+Valid, 22776 SdHoareTripleChecker+Invalid, 15584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 15555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:30,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2342 Valid, 22776 Invalid, 15584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 15555 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-12-02 10:16:30,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9976 states. [2024-12-02 10:16:30,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9976 to 5558. [2024-12-02 10:16:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5558 states, 5557 states have (on average 1.4648191470217744) internal successors, (8140), 5557 states have internal predecessors, (8140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:30,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5558 states to 5558 states and 8140 transitions. [2024-12-02 10:16:30,312 INFO L78 Accepts]: Start accepts. Automaton has 5558 states and 8140 transitions. Word has length 124 [2024-12-02 10:16:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:30,312 INFO L471 AbstractCegarLoop]: Abstraction has 5558 states and 8140 transitions. [2024-12-02 10:16:30,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.7555555555555555) internal successors, (124), 45 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5558 states and 8140 transitions. [2024-12-02 10:16:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 10:16:30,313 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:30,313 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:30,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 10:16:30,313 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:30,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:30,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1933140568, now seen corresponding path program 1 times [2024-12-02 10:16:30,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:30,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551930917] [2024-12-02 10:16:30,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:30,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:30,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:30,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551930917] [2024-12-02 10:16:30,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551930917] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:30,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:30,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:16:30,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119431348] [2024-12-02 10:16:30,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:30,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:16:30,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:30,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:16:30,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:16:30,398 INFO L87 Difference]: Start difference. First operand 5558 states and 8140 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:30,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:30,430 INFO L93 Difference]: Finished difference Result 15594 states and 23042 transitions. [2024-12-02 10:16:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:16:30,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 10:16:30,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:30,437 INFO L225 Difference]: With dead ends: 15594 [2024-12-02 10:16:30,437 INFO L226 Difference]: Without dead ends: 10440 [2024-12-02 10:16:30,440 INFO L434 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 [2024-12-02 10:16:30,440 INFO L435 NwaCegarLoop]: 360 mSDtfsCounter, 131 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:30,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 555 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:16:30,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10440 states. [2024-12-02 10:16:30,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10440 to 10166. [2024-12-02 10:16:30,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10166 states, 10165 states have (on average 1.4617806197737333) internal successors, (14859), 10165 states have internal predecessors, (14859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:30,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10166 states to 10166 states and 14859 transitions. [2024-12-02 10:16:30,525 INFO L78 Accepts]: Start accepts. Automaton has 10166 states and 14859 transitions. Word has length 124 [2024-12-02 10:16:30,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:30,525 INFO L471 AbstractCegarLoop]: Abstraction has 10166 states and 14859 transitions. [2024-12-02 10:16:30,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:30,525 INFO L276 IsEmpty]: Start isEmpty. Operand 10166 states and 14859 transitions. [2024-12-02 10:16:30,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 10:16:30,526 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:30,526 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:30,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 10:16:30,526 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:30,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:30,526 INFO L85 PathProgramCache]: Analyzing trace with hash -212962745, now seen corresponding path program 1 times [2024-12-02 10:16:30,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:30,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198241298] [2024-12-02 10:16:30,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:30,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:31,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:31,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:31,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198241298] [2024-12-02 10:16:31,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198241298] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:31,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:31,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:16:31,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615315645] [2024-12-02 10:16:31,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:31,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:16:31,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:31,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:16:31,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:16:31,278 INFO L87 Difference]: Start difference. First operand 10166 states and 14859 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:31,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:31,916 INFO L93 Difference]: Finished difference Result 22397 states and 32822 transitions. [2024-12-02 10:16:31,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:16:31,916 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 10:16:31,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:31,927 INFO L225 Difference]: With dead ends: 22397 [2024-12-02 10:16:31,927 INFO L226 Difference]: Without dead ends: 19992 [2024-12-02 10:16:31,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:16:31,932 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 1115 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:31,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 2326 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:16:31,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19992 states. [2024-12-02 10:16:32,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19992 to 10090. [2024-12-02 10:16:32,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10090 states, 10089 states have (on average 1.4623847754980672) internal successors, (14754), 10089 states have internal predecessors, (14754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:32,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10090 states to 10090 states and 14754 transitions. [2024-12-02 10:16:32,080 INFO L78 Accepts]: Start accepts. Automaton has 10090 states and 14754 transitions. Word has length 124 [2024-12-02 10:16:32,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:32,080 INFO L471 AbstractCegarLoop]: Abstraction has 10090 states and 14754 transitions. [2024-12-02 10:16:32,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:32,080 INFO L276 IsEmpty]: Start isEmpty. Operand 10090 states and 14754 transitions. [2024-12-02 10:16:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 10:16:32,081 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:32,081 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:32,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 10:16:32,081 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:32,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:32,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1606632569, now seen corresponding path program 1 times [2024-12-02 10:16:32,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:32,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338841758] [2024-12-02 10:16:32,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:32,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:32,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:32,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:32,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338841758] [2024-12-02 10:16:32,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338841758] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:32,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:32,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 10:16:32,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499933681] [2024-12-02 10:16:32,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:32,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:16:32,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:32,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:16:32,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:16:32,807 INFO L87 Difference]: Start difference. First operand 10090 states and 14754 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:33,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:33,634 INFO L93 Difference]: Finished difference Result 41943 states and 61537 transitions. [2024-12-02 10:16:33,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:16:33,635 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 10:16:33,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:33,663 INFO L225 Difference]: With dead ends: 41943 [2024-12-02 10:16:33,663 INFO L226 Difference]: Without dead ends: 39609 [2024-12-02 10:16:33,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-12-02 10:16:33,672 INFO L435 NwaCegarLoop]: 584 mSDtfsCounter, 887 mSDsluCounter, 5085 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 5669 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:33,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 5669 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:16:33,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39609 states. [2024-12-02 10:16:33,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39609 to 10072. [2024-12-02 10:16:33,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10072 states, 10071 states have (on average 1.46192036540562) internal successors, (14723), 10071 states have internal predecessors, (14723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:33,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10072 states to 10072 states and 14723 transitions. [2024-12-02 10:16:33,916 INFO L78 Accepts]: Start accepts. Automaton has 10072 states and 14723 transitions. Word has length 124 [2024-12-02 10:16:33,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:33,916 INFO L471 AbstractCegarLoop]: Abstraction has 10072 states and 14723 transitions. [2024-12-02 10:16:33,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:33,916 INFO L276 IsEmpty]: Start isEmpty. Operand 10072 states and 14723 transitions. [2024-12-02 10:16:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 10:16:33,917 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:33,917 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:33,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 10:16:33,917 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:33,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:33,918 INFO L85 PathProgramCache]: Analyzing trace with hash 72988073, now seen corresponding path program 1 times [2024-12-02 10:16:33,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:33,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476683445] [2024-12-02 10:16:33,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:33,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:38,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:38,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:38,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476683445] [2024-12-02 10:16:38,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476683445] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:38,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:38,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2024-12-02 10:16:38,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887699708] [2024-12-02 10:16:38,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:38,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-12-02 10:16:38,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:38,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-12-02 10:16:38,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1922, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 10:16:38,464 INFO L87 Difference]: Start difference. First operand 10072 states and 14723 transitions. Second operand has 46 states, 46 states have (on average 2.6956521739130435) internal successors, (124), 46 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:53,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:53,900 INFO L93 Difference]: Finished difference Result 28089 states and 41145 transitions. [2024-12-02 10:16:53,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-12-02 10:16:53,901 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.6956521739130435) internal successors, (124), 46 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 10:16:53,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:53,915 INFO L225 Difference]: With dead ends: 28089 [2024-12-02 10:16:53,915 INFO L226 Difference]: Without dead ends: 26939 [2024-12-02 10:16:53,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1032, Invalid=6450, Unknown=0, NotChecked=0, Total=7482 [2024-12-02 10:16:53,920 INFO L435 NwaCegarLoop]: 777 mSDtfsCounter, 3239 mSDsluCounter, 18891 mSDsCounter, 0 mSdLazyCounter, 12997 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3239 SdHoareTripleChecker+Valid, 19668 SdHoareTripleChecker+Invalid, 13022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:53,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3239 Valid, 19668 Invalid, 13022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 12997 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-12-02 10:16:53,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26939 states. [2024-12-02 10:16:54,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26939 to 10131. [2024-12-02 10:16:54,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10131 states, 10130 states have (on average 1.4611056268509377) internal successors, (14801), 10130 states have internal predecessors, (14801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:54,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10131 states to 10131 states and 14801 transitions. [2024-12-02 10:16:54,048 INFO L78 Accepts]: Start accepts. Automaton has 10131 states and 14801 transitions. Word has length 124 [2024-12-02 10:16:54,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:54,048 INFO L471 AbstractCegarLoop]: Abstraction has 10131 states and 14801 transitions. [2024-12-02 10:16:54,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.6956521739130435) internal successors, (124), 46 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:54,049 INFO L276 IsEmpty]: Start isEmpty. Operand 10131 states and 14801 transitions. [2024-12-02 10:16:54,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 10:16:54,049 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:54,049 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:54,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 10:16:54,049 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:54,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:54,050 INFO L85 PathProgramCache]: Analyzing trace with hash 804653832, now seen corresponding path program 1 times [2024-12-02 10:16:54,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:54,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147103935] [2024-12-02 10:16:54,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:54,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:54,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:54,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:54,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147103935] [2024-12-02 10:16:54,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147103935] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:54,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:54,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 10:16:54,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542117176] [2024-12-02 10:16:54,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:54,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:16:54,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:54,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:16:54,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:16:54,580 INFO L87 Difference]: Start difference. First operand 10131 states and 14801 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:55,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:55,612 INFO L93 Difference]: Finished difference Result 42048 states and 61657 transitions. [2024-12-02 10:16:55,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:16:55,613 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 10:16:55,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:55,644 INFO L225 Difference]: With dead ends: 42048 [2024-12-02 10:16:55,644 INFO L226 Difference]: Without dead ends: 39670 [2024-12-02 10:16:55,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-12-02 10:16:55,653 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 1309 mSDsluCounter, 4621 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 5223 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:55,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 5223 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:16:55,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39670 states. [2024-12-02 10:16:55,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39670 to 10073. [2024-12-02 10:16:55,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10073 states, 10072 states have (on average 1.4614773629864972) internal successors, (14720), 10072 states have internal predecessors, (14720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10073 states to 10073 states and 14720 transitions. [2024-12-02 10:16:55,905 INFO L78 Accepts]: Start accepts. Automaton has 10073 states and 14720 transitions. Word has length 124 [2024-12-02 10:16:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:55,906 INFO L471 AbstractCegarLoop]: Abstraction has 10073 states and 14720 transitions. [2024-12-02 10:16:55,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:55,906 INFO L276 IsEmpty]: Start isEmpty. Operand 10073 states and 14720 transitions. [2024-12-02 10:16:55,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 10:16:55,906 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:55,906 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:55,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 10:16:55,906 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:55,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:55,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1156698250, now seen corresponding path program 1 times [2024-12-02 10:16:55,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:55,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50031078] [2024-12-02 10:16:55,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:55,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:56,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:56,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50031078] [2024-12-02 10:16:56,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50031078] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:56,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:56,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:16:56,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823779866] [2024-12-02 10:16:56,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:56,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:16:56,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:56,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:16:56,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:16:56,730 INFO L87 Difference]: Start difference. First operand 10073 states and 14720 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:57,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:57,484 INFO L93 Difference]: Finished difference Result 13525 states and 19794 transitions. [2024-12-02 10:16:57,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:16:57,485 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 10:16:57,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:57,494 INFO L225 Difference]: With dead ends: 13525 [2024-12-02 10:16:57,494 INFO L226 Difference]: Without dead ends: 11132 [2024-12-02 10:16:57,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:16:57,498 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 923 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:57,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 2501 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:16:57,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11132 states. [2024-12-02 10:16:57,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11132 to 9982. [2024-12-02 10:16:57,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9982 states, 9981 states have (on average 1.4633804228033263) internal successors, (14606), 9981 states have internal predecessors, (14606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:57,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9982 states to 9982 states and 14606 transitions. [2024-12-02 10:16:57,627 INFO L78 Accepts]: Start accepts. Automaton has 9982 states and 14606 transitions. Word has length 124 [2024-12-02 10:16:57,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:57,627 INFO L471 AbstractCegarLoop]: Abstraction has 9982 states and 14606 transitions. [2024-12-02 10:16:57,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:57,627 INFO L276 IsEmpty]: Start isEmpty. Operand 9982 states and 14606 transitions. [2024-12-02 10:16:57,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 10:16:57,628 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:57,628 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:57,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 10:16:57,628 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:57,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:57,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1683639915, now seen corresponding path program 1 times [2024-12-02 10:16:57,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:57,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703945597] [2024-12-02 10:16:57,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:57,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:57,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:57,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:57,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703945597] [2024-12-02 10:16:57,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703945597] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:57,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:57,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 10:16:57,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413953451] [2024-12-02 10:16:57,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:57,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:16:57,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:57,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:16:57,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:16:57,860 INFO L87 Difference]: Start difference. First operand 9982 states and 14606 transitions. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:58,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:58,412 INFO L93 Difference]: Finished difference Result 29921 states and 43761 transitions. [2024-12-02 10:16:58,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:16:58,412 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 10:16:58,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:58,424 INFO L225 Difference]: With dead ends: 29921 [2024-12-02 10:16:58,424 INFO L226 Difference]: Without dead ends: 20090 [2024-12-02 10:16:58,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:16:58,432 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 1020 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:58,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 1058 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:16:58,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20090 states. [2024-12-02 10:16:58,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20090 to 9976. [2024-12-02 10:16:58,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9976 states, 9975 states have (on average 1.463358395989975) internal successors, (14597), 9975 states have internal predecessors, (14597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:58,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9976 states to 9976 states and 14597 transitions. [2024-12-02 10:16:58,562 INFO L78 Accepts]: Start accepts. Automaton has 9976 states and 14597 transitions. Word has length 124 [2024-12-02 10:16:58,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:58,562 INFO L471 AbstractCegarLoop]: Abstraction has 9976 states and 14597 transitions. [2024-12-02 10:16:58,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:58,562 INFO L276 IsEmpty]: Start isEmpty. Operand 9976 states and 14597 transitions. [2024-12-02 10:16:58,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 10:16:58,563 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:58,563 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:58,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 10:16:58,563 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:58,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:58,563 INFO L85 PathProgramCache]: Analyzing trace with hash 115656331, now seen corresponding path program 1 times [2024-12-02 10:16:58,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:58,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579888858] [2024-12-02 10:16:58,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:58,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:16:58,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:16:58,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:16:58,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579888858] [2024-12-02 10:16:58,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579888858] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:16:58,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:16:58,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:16:58,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282165405] [2024-12-02 10:16:58,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:16:58,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:16:58,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:16:58,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:16:58,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:16:58,997 INFO L87 Difference]: Start difference. First operand 9976 states and 14597 transitions. Second operand has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:59,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:16:59,398 INFO L93 Difference]: Finished difference Result 22036 states and 32339 transitions. [2024-12-02 10:16:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:16:59,398 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 10:16:59,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:16:59,411 INFO L225 Difference]: With dead ends: 22036 [2024-12-02 10:16:59,411 INFO L226 Difference]: Without dead ends: 19705 [2024-12-02 10:16:59,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:16:59,416 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 792 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:16:59,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1304 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:16:59,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19705 states. [2024-12-02 10:16:59,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19705 to 9943. [2024-12-02 10:16:59,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9943 states, 9942 states have (on average 1.4641923154294911) internal successors, (14557), 9942 states have internal predecessors, (14557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:59,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9943 states to 9943 states and 14557 transitions. [2024-12-02 10:16:59,544 INFO L78 Accepts]: Start accepts. Automaton has 9943 states and 14557 transitions. Word has length 124 [2024-12-02 10:16:59,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:16:59,544 INFO L471 AbstractCegarLoop]: Abstraction has 9943 states and 14557 transitions. [2024-12-02 10:16:59,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:16:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 9943 states and 14557 transitions. [2024-12-02 10:16:59,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:16:59,545 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:16:59,545 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:16:59,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 10:16:59,545 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:16:59,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:16:59,545 INFO L85 PathProgramCache]: Analyzing trace with hash -270513254, now seen corresponding path program 1 times [2024-12-02 10:16:59,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:16:59,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042373774] [2024-12-02 10:16:59,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:16:59,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:16:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:00,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:00,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:00,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042373774] [2024-12-02 10:17:00,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042373774] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:17:00,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:17:00,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 10:17:00,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115559043] [2024-12-02 10:17:00,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:17:00,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:17:00,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:00,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:17:00,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:17:00,041 INFO L87 Difference]: Start difference. First operand 9943 states and 14557 transitions. Second operand has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:00,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:17:00,549 INFO L93 Difference]: Finished difference Result 22021 states and 32321 transitions. [2024-12-02 10:17:00,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:17:00,549 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-12-02 10:17:00,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:17:00,561 INFO L225 Difference]: With dead ends: 22021 [2024-12-02 10:17:00,561 INFO L226 Difference]: Without dead ends: 19709 [2024-12-02 10:17:00,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:17:00,566 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 1037 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:17:00,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1858 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:17:00,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19709 states. [2024-12-02 10:17:00,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19709 to 9912. [2024-12-02 10:17:00,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9912 states, 9911 states have (on average 1.4648370497427101) internal successors, (14518), 9911 states have internal predecessors, (14518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:00,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9912 states to 9912 states and 14518 transitions. [2024-12-02 10:17:00,696 INFO L78 Accepts]: Start accepts. Automaton has 9912 states and 14518 transitions. Word has length 125 [2024-12-02 10:17:00,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:17:00,696 INFO L471 AbstractCegarLoop]: Abstraction has 9912 states and 14518 transitions. [2024-12-02 10:17:00,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:00,696 INFO L276 IsEmpty]: Start isEmpty. Operand 9912 states and 14518 transitions. [2024-12-02 10:17:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:17:00,696 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:17:00,696 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:17:00,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 10:17:00,696 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:17:00,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:17:00,697 INFO L85 PathProgramCache]: Analyzing trace with hash -524465052, now seen corresponding path program 1 times [2024-12-02 10:17:00,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:17:00,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397510206] [2024-12-02 10:17:00,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:00,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:17:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:00,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:00,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397510206] [2024-12-02 10:17:00,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397510206] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:17:00,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:17:00,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:17:00,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36943733] [2024-12-02 10:17:00,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:17:00,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:17:00,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:00,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:17:00,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:17:00,877 INFO L87 Difference]: Start difference. First operand 9912 states and 14518 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:00,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:17:00,920 INFO L93 Difference]: Finished difference Result 9978 states and 14615 transitions. [2024-12-02 10:17:00,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:17:00,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-12-02 10:17:00,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:17:00,928 INFO L225 Difference]: With dead ends: 9978 [2024-12-02 10:17:00,928 INFO L226 Difference]: Without dead ends: 9976 [2024-12-02 10:17:00,930 INFO L434 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 [2024-12-02 10:17:00,930 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:17:00,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 957 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:17:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9976 states. [2024-12-02 10:17:00,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9976 to 9976. [2024-12-02 10:17:01,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9976 states, 9975 states have (on average 1.4582456140350877) internal successors, (14546), 9975 states have internal predecessors, (14546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9976 states to 9976 states and 14546 transitions. [2024-12-02 10:17:01,055 INFO L78 Accepts]: Start accepts. Automaton has 9976 states and 14546 transitions. Word has length 125 [2024-12-02 10:17:01,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:17:01,055 INFO L471 AbstractCegarLoop]: Abstraction has 9976 states and 14546 transitions. [2024-12-02 10:17:01,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:01,055 INFO L276 IsEmpty]: Start isEmpty. Operand 9976 states and 14546 transitions. [2024-12-02 10:17:01,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:17:01,055 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:17:01,056 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:17:01,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 10:17:01,056 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:17:01,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:17:01,056 INFO L85 PathProgramCache]: Analyzing trace with hash 763218784, now seen corresponding path program 1 times [2024-12-02 10:17:01,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:17:01,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862142395] [2024-12-02 10:17:01,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:01,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:17:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:01,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:01,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862142395] [2024-12-02 10:17:01,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862142395] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:17:01,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:17:01,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:17:01,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554990706] [2024-12-02 10:17:01,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:17:01,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:17:01,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:01,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:17:01,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:17:01,188 INFO L87 Difference]: Start difference. First operand 9976 states and 14546 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:01,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:17:01,264 INFO L93 Difference]: Finished difference Result 23976 states and 35056 transitions. [2024-12-02 10:17:01,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:17:01,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-12-02 10:17:01,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:17:01,277 INFO L225 Difference]: With dead ends: 23976 [2024-12-02 10:17:01,277 INFO L226 Difference]: Without dead ends: 14150 [2024-12-02 10:17:01,282 INFO L434 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 [2024-12-02 10:17:01,283 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 115 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:17:01,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 584 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:17:01,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14150 states. [2024-12-02 10:17:01,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14150 to 14148. [2024-12-02 10:17:01,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14148 states, 14147 states have (on average 1.4545840107443275) internal successors, (20578), 14147 states have internal predecessors, (20578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:01,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14148 states to 14148 states and 20578 transitions. [2024-12-02 10:17:01,409 INFO L78 Accepts]: Start accepts. Automaton has 14148 states and 20578 transitions. Word has length 125 [2024-12-02 10:17:01,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:17:01,409 INFO L471 AbstractCegarLoop]: Abstraction has 14148 states and 20578 transitions. [2024-12-02 10:17:01,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 14148 states and 20578 transitions. [2024-12-02 10:17:01,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 10:17:01,409 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:17:01,409 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:17:01,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 10:17:01,409 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:17:01,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:17:01,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1986943587, now seen corresponding path program 1 times [2024-12-02 10:17:01,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:17:01,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805524558] [2024-12-02 10:17:01,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:01,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:17:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:01,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:01,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805524558] [2024-12-02 10:17:01,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805524558] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:17:01,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:17:01,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 10:17:01,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057166883] [2024-12-02 10:17:01,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:17:01,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:17:01,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:01,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:17:01,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:17:01,888 INFO L87 Difference]: Start difference. First operand 14148 states and 20578 transitions. Second operand has 14 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:02,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:17:02,909 INFO L93 Difference]: Finished difference Result 59584 states and 86858 transitions. [2024-12-02 10:17:02,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:17:02,910 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-12-02 10:17:02,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:17:02,957 INFO L225 Difference]: With dead ends: 59584 [2024-12-02 10:17:02,957 INFO L226 Difference]: Without dead ends: 56158 [2024-12-02 10:17:02,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-12-02 10:17:02,969 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 860 mSDsluCounter, 4245 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 4790 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:17:02,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 4790 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:17:02,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56158 states. [2024-12-02 10:17:03,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56158 to 14152. [2024-12-02 10:17:03,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14152 states, 14151 states have (on average 1.4545968482792735) internal successors, (20584), 14151 states have internal predecessors, (20584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:03,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14152 states to 14152 states and 20584 transitions. [2024-12-02 10:17:03,312 INFO L78 Accepts]: Start accepts. Automaton has 14152 states and 20584 transitions. Word has length 125 [2024-12-02 10:17:03,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:17:03,312 INFO L471 AbstractCegarLoop]: Abstraction has 14152 states and 20584 transitions. [2024-12-02 10:17:03,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:03,312 INFO L276 IsEmpty]: Start isEmpty. Operand 14152 states and 20584 transitions. [2024-12-02 10:17:03,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 10:17:03,314 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:17:03,315 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:17:03,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 10:17:03,315 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:17:03,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:17:03,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1992589041, now seen corresponding path program 1 times [2024-12-02 10:17:03,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:17:03,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967744331] [2024-12-02 10:17:03,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:03,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:17:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:03,460 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:03,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:03,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967744331] [2024-12-02 10:17:03,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967744331] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:17:03,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:17:03,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:17:03,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724013550] [2024-12-02 10:17:03,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:17:03,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:17:03,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:03,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:17:03,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:17:03,462 INFO L87 Difference]: Start difference. First operand 14152 states and 20584 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:03,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:17:03,533 INFO L93 Difference]: Finished difference Result 29480 states and 42957 transitions. [2024-12-02 10:17:03,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:17:03,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2024-12-02 10:17:03,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:17:03,551 INFO L225 Difference]: With dead ends: 29480 [2024-12-02 10:17:03,551 INFO L226 Difference]: Without dead ends: 19654 [2024-12-02 10:17:03,560 INFO L434 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 [2024-12-02 10:17:03,560 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 110 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:17:03,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 538 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:17:03,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19654 states. [2024-12-02 10:17:03,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19654 to 19100. [2024-12-02 10:17:03,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19100 states, 19099 states have (on average 1.4489763861982303) internal successors, (27674), 19099 states have internal predecessors, (27674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:03,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19100 states to 19100 states and 27674 transitions. [2024-12-02 10:17:03,763 INFO L78 Accepts]: Start accepts. Automaton has 19100 states and 27674 transitions. Word has length 161 [2024-12-02 10:17:03,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:17:03,763 INFO L471 AbstractCegarLoop]: Abstraction has 19100 states and 27674 transitions. [2024-12-02 10:17:03,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:03,764 INFO L276 IsEmpty]: Start isEmpty. Operand 19100 states and 27674 transitions. [2024-12-02 10:17:03,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 10:17:03,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:17:03,765 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:17:03,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 10:17:03,765 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:17:03,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:17:03,765 INFO L85 PathProgramCache]: Analyzing trace with hash -577623344, now seen corresponding path program 1 times [2024-12-02 10:17:03,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:17:03,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600881103] [2024-12-02 10:17:03,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:03,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:17:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:03,991 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:03,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:03,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600881103] [2024-12-02 10:17:03,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600881103] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:17:03,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:17:03,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:17:03,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150681714] [2024-12-02 10:17:03,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:17:03,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:17:03,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:03,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:17:03,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:17:03,993 INFO L87 Difference]: Start difference. First operand 19100 states and 27674 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:04,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:17:04,558 INFO L93 Difference]: Finished difference Result 81768 states and 119344 transitions. [2024-12-02 10:17:04,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:17:04,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 10:17:04,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:17:04,624 INFO L225 Difference]: With dead ends: 81768 [2024-12-02 10:17:04,624 INFO L226 Difference]: Without dead ends: 62842 [2024-12-02 10:17:04,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:17:04,645 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1424 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:17:04,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 486 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:17:04,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62842 states. [2024-12-02 10:17:05,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62842 to 40664. [2024-12-02 10:17:05,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40664 states, 40663 states have (on average 1.4474091926321226) internal successors, (58856), 40663 states have internal predecessors, (58856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:05,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40664 states to 40664 states and 58856 transitions. [2024-12-02 10:17:05,139 INFO L78 Accepts]: Start accepts. Automaton has 40664 states and 58856 transitions. Word has length 163 [2024-12-02 10:17:05,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:17:05,139 INFO L471 AbstractCegarLoop]: Abstraction has 40664 states and 58856 transitions. [2024-12-02 10:17:05,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:05,139 INFO L276 IsEmpty]: Start isEmpty. Operand 40664 states and 58856 transitions. [2024-12-02 10:17:05,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 10:17:05,140 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:17:05,140 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:17:05,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 10:17:05,140 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:17:05,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:17:05,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1124611644, now seen corresponding path program 1 times [2024-12-02 10:17:05,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:17:05,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396199242] [2024-12-02 10:17:05,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:05,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:17:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:05,275 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:05,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:05,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396199242] [2024-12-02 10:17:05,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396199242] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:17:05,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:17:05,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:17:05,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018281234] [2024-12-02 10:17:05,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:17:05,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:17:05,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:05,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:17:05,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:17:05,277 INFO L87 Difference]: Start difference. First operand 40664 states and 58856 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:05,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:17:05,943 INFO L93 Difference]: Finished difference Result 160716 states and 233746 transitions. [2024-12-02 10:17:05,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:17:05,944 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 10:17:05,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:17:06,065 INFO L225 Difference]: With dead ends: 160716 [2024-12-02 10:17:06,066 INFO L226 Difference]: Without dead ends: 120226 [2024-12-02 10:17:06,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:17:06,091 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1339 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:17:06,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 484 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:17:06,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120226 states. [2024-12-02 10:17:07,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120226 to 86432. [2024-12-02 10:17:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86432 states, 86431 states have (on average 1.445268480059238) internal successors, (124916), 86431 states have internal predecessors, (124916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86432 states to 86432 states and 124916 transitions. [2024-12-02 10:17:07,172 INFO L78 Accepts]: Start accepts. Automaton has 86432 states and 124916 transitions. Word has length 163 [2024-12-02 10:17:07,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:17:07,172 INFO L471 AbstractCegarLoop]: Abstraction has 86432 states and 124916 transitions. [2024-12-02 10:17:07,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:07,172 INFO L276 IsEmpty]: Start isEmpty. Operand 86432 states and 124916 transitions. [2024-12-02 10:17:07,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 10:17:07,174 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:17:07,174 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:17:07,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 10:17:07,174 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:17:07,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:17:07,174 INFO L85 PathProgramCache]: Analyzing trace with hash -960554568, now seen corresponding path program 1 times [2024-12-02 10:17:07,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:17:07,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501692806] [2024-12-02 10:17:07,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:07,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:17:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:07,337 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:07,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:07,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501692806] [2024-12-02 10:17:07,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501692806] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:17:07,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:17:07,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:17:07,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679447088] [2024-12-02 10:17:07,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:17:07,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:17:07,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:07,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:17:07,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:17:07,338 INFO L87 Difference]: Start difference. First operand 86432 states and 124916 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:08,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:17:08,193 INFO L93 Difference]: Finished difference Result 315972 states and 457798 transitions. [2024-12-02 10:17:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:17:08,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 10:17:08,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:17:08,421 INFO L225 Difference]: With dead ends: 315972 [2024-12-02 10:17:08,422 INFO L226 Difference]: Without dead ends: 229714 [2024-12-02 10:17:08,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:17:08,489 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1254 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:17:08,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:17:08,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229714 states. [2024-12-02 10:17:10,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229714 to 183248. [2024-12-02 10:17:10,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183248 states, 183247 states have (on average 1.4430140739002548) internal successors, (264428), 183247 states have internal predecessors, (264428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:11,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183248 states to 183248 states and 264428 transitions. [2024-12-02 10:17:11,164 INFO L78 Accepts]: Start accepts. Automaton has 183248 states and 264428 transitions. Word has length 163 [2024-12-02 10:17:11,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:17:11,164 INFO L471 AbstractCegarLoop]: Abstraction has 183248 states and 264428 transitions. [2024-12-02 10:17:11,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:11,165 INFO L276 IsEmpty]: Start isEmpty. Operand 183248 states and 264428 transitions. [2024-12-02 10:17:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 10:17:11,167 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:17:11,167 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:17:11,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 10:17:11,167 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:17:11,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:17:11,168 INFO L85 PathProgramCache]: Analyzing trace with hash 821175401, now seen corresponding path program 1 times [2024-12-02 10:17:11,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:17:11,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477356126] [2024-12-02 10:17:11,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:11,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:17:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:11,560 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:11,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:11,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477356126] [2024-12-02 10:17:11,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477356126] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:17:11,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:17:11,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:17:11,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652751025] [2024-12-02 10:17:11,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:17:11,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:17:11,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:11,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:17:11,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:17:11,561 INFO L87 Difference]: Start difference. First operand 183248 states and 264428 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:13,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:17:13,279 INFO L93 Difference]: Finished difference Result 621204 states and 896398 transitions. [2024-12-02 10:17:13,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:17:13,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 10:17:13,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:17:13,750 INFO L225 Difference]: With dead ends: 621204 [2024-12-02 10:17:13,751 INFO L226 Difference]: Without dead ends: 438130 [2024-12-02 10:17:14,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:17:14,052 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1169 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:17:14,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 480 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:17:14,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438130 states. [2024-12-02 10:17:18,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438130 to 387440. [2024-12-02 10:17:18,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387440 states, 387439 states have (on average 1.440835847707639) internal successors, (558236), 387439 states have internal predecessors, (558236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:19,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387440 states to 387440 states and 558236 transitions. [2024-12-02 10:17:19,412 INFO L78 Accepts]: Start accepts. Automaton has 387440 states and 558236 transitions. Word has length 163 [2024-12-02 10:17:19,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:17:19,412 INFO L471 AbstractCegarLoop]: Abstraction has 387440 states and 558236 transitions. [2024-12-02 10:17:19,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:19,412 INFO L276 IsEmpty]: Start isEmpty. Operand 387440 states and 558236 transitions. [2024-12-02 10:17:19,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 10:17:19,414 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:17:19,415 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:17:19,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 10:17:19,415 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:17:19,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:17:19,415 INFO L85 PathProgramCache]: Analyzing trace with hash 482784995, now seen corresponding path program 1 times [2024-12-02 10:17:19,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:17:19,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828603226] [2024-12-02 10:17:19,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:19,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:17:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:19,594 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:19,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:19,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828603226] [2024-12-02 10:17:19,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828603226] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:17:19,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601617408] [2024-12-02 10:17:19,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:19,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:17:19,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:17:19,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:17:19,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:17:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:19,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:17:19,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:17:20,264 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:20,264 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:17:20,497 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:20,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601617408] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:17:20,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:17:20,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-12-02 10:17:20,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822124539] [2024-12-02 10:17:20,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:17:20,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:17:20,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:20,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:17:20,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:17:20,498 INFO L87 Difference]: Start difference. First operand 387440 states and 558236 transitions. Second operand has 11 states, 11 states have (on average 26.454545454545453) internal successors, (291), 10 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:23,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:17:23,931 INFO L93 Difference]: Finished difference Result 1221108 states and 1754590 transitions. [2024-12-02 10:17:23,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:17:23,932 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 26.454545454545453) internal successors, (291), 10 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 10:17:23,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:17:25,306 INFO L225 Difference]: With dead ends: 1221108 [2024-12-02 10:17:25,306 INFO L226 Difference]: Without dead ends: 833842 [2024-12-02 10:17:25,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 316 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:17:25,425 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 1589 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:17:25,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 616 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:17:25,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833842 states. [2024-12-02 10:17:34,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833842 to 812720. [2024-12-02 10:17:34,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812720 states, 812719 states have (on average 1.4306888358707006) internal successors, (1162748), 812719 states have internal predecessors, (1162748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:36,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812720 states to 812720 states and 1162748 transitions. [2024-12-02 10:17:36,600 INFO L78 Accepts]: Start accepts. Automaton has 812720 states and 1162748 transitions. Word has length 163 [2024-12-02 10:17:36,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:17:36,601 INFO L471 AbstractCegarLoop]: Abstraction has 812720 states and 1162748 transitions. [2024-12-02 10:17:36,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 26.454545454545453) internal successors, (291), 10 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:36,601 INFO L276 IsEmpty]: Start isEmpty. Operand 812720 states and 1162748 transitions. [2024-12-02 10:17:36,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 10:17:36,605 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:17:36,605 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:17:36,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:17:36,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d65ea6-6fcf-41df-98b3-abb9f29ea8b4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-12-02 10:17:36,806 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:17:36,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:17:36,806 INFO L85 PathProgramCache]: Analyzing trace with hash 882545537, now seen corresponding path program 1 times [2024-12-02 10:17:36,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:17:36,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540175528] [2024-12-02 10:17:36,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:36,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:17:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:17:37,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:37,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540175528] [2024-12-02 10:17:37,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540175528] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:17:37,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:17:37,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:17:37,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207629808] [2024-12-02 10:17:37,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:17:37,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:17:37,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:37,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:17:37,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:17:37,389 INFO L87 Difference]: Start difference. First operand 812720 states and 1162748 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:43,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:17:43,192 INFO L93 Difference]: Finished difference Result 1840346 states and 2637419 transitions. [2024-12-02 10:17:43,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:17:43,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-12-02 10:17:43,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:17:44,376 INFO L225 Difference]: With dead ends: 1840346 [2024-12-02 10:17:44,376 INFO L226 Difference]: Without dead ends: 1027800 [2024-12-02 10:17:44,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:17:44,630 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1248 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:17:44,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 552 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:17:45,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027800 states. [2024-12-02 10:17:53,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027800 to 851906. [2024-12-02 10:17:53,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851906 states, 851905 states have (on average 1.4287661182878373) internal successors, (1217173), 851905 states have internal predecessors, (1217173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:56,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851906 states to 851906 states and 1217173 transitions. [2024-12-02 10:17:56,688 INFO L78 Accepts]: Start accepts. Automaton has 851906 states and 1217173 transitions. Word has length 163 [2024-12-02 10:17:56,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:17:56,688 INFO L471 AbstractCegarLoop]: Abstraction has 851906 states and 1217173 transitions. [2024-12-02 10:17:56,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:17:56,689 INFO L276 IsEmpty]: Start isEmpty. Operand 851906 states and 1217173 transitions. [2024-12-02 10:17:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 10:17:56,759 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:17:56,760 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:17:56,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 10:17:56,760 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:17:56,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:17:56,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1160282109, now seen corresponding path program 1 times [2024-12-02 10:17:56,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:17:56,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058035640] [2024-12-02 10:17:56,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:17:56,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:17:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:17:56,920 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 10:17:56,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:17:56,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058035640] [2024-12-02 10:17:56,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058035640] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:17:56,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:17:56,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:17:56,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010852727] [2024-12-02 10:17:56,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:17:56,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:17:56,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:17:56,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:17:56,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:17:56,921 INFO L87 Difference]: Start difference. First operand 851906 states and 1217173 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:01,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:01,623 INFO L93 Difference]: Finished difference Result 1659078 states and 2366295 transitions. [2024-12-02 10:18:01,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:18:01,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 198 [2024-12-02 10:18:01,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:02,675 INFO L225 Difference]: With dead ends: 1659078 [2024-12-02 10:18:02,675 INFO L226 Difference]: Without dead ends: 807358 [2024-12-02 10:18:02,923 INFO L434 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 [2024-12-02 10:18:02,924 INFO L435 NwaCegarLoop]: 313 mSDtfsCounter, 103 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:02,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 524 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:03,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807358 states. [2024-12-02 10:18:09,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807358 to 794288. [2024-12-02 10:18:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794288 states, 794287 states have (on average 1.4183638911375862) internal successors, (1126588), 794287 states have internal predecessors, (1126588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:12,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794288 states to 794288 states and 1126588 transitions. [2024-12-02 10:18:12,260 INFO L78 Accepts]: Start accepts. Automaton has 794288 states and 1126588 transitions. Word has length 198 [2024-12-02 10:18:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:12,260 INFO L471 AbstractCegarLoop]: Abstraction has 794288 states and 1126588 transitions. [2024-12-02 10:18:12,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand 794288 states and 1126588 transitions. [2024-12-02 10:18:12,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 10:18:12,354 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:12,354 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:12,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 10:18:12,355 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:12,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:12,355 INFO L85 PathProgramCache]: Analyzing trace with hash -2080587765, now seen corresponding path program 1 times [2024-12-02 10:18:12,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:12,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661823252] [2024-12-02 10:18:12,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:12,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 10:18:12,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:12,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661823252] [2024-12-02 10:18:12,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661823252] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:12,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:12,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:18:12,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063161211] [2024-12-02 10:18:12,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:12,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:18:12,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:12,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:18:12,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:12,469 INFO L87 Difference]: Start difference. First operand 794288 states and 1126588 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:16,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:16,115 INFO L93 Difference]: Finished difference Result 1544052 states and 2185406 transitions.