./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 7d2af023f2b46f9741f5603972bec3ae96ac7b65fd15f9e50fc1e49148c9ae7b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:47:04,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:47:04,315 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:47:04,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:47:04,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:47:04,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:47:04,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:47:04,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:47:04,350 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:47:04,350 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:47:04,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:47:04,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:47:04,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:47:04,356 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:47:04,356 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:47:04,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:47:04,357 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:47:04,357 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:47:04,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:47:04,357 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:47:04,357 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:47:04,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:47:04,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:47:04,360 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:47:04,360 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:47:04,360 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:47:04,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:47:04,360 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:47:04,361 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:47:04,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:47:04,361 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:47:04,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:47:04,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:47:04,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:47:04,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:47:04,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:47:04,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:47:04,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:47:04,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:47:04,362 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:47:04,362 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:47:04,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:47:04,363 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d2af023f2b46f9741f5603972bec3ae96ac7b65fd15f9e50fc1e49148c9ae7b [2024-11-16 08:47:04,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:47:04,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:47:04,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:47:04,582 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:47:04,582 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:47:04,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2024-11-16 08:47:05,810 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:47:05,984 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:47:05,985 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2024-11-16 08:47:05,998 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a88f3b1e/970da3ab3867479f9ae0ce079eba0bce/FLAG63e001bef [2024-11-16 08:47:06,010 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a88f3b1e/970da3ab3867479f9ae0ce079eba0bce [2024-11-16 08:47:06,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:47:06,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:47:06,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:47:06,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:47:06,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:47:06,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@334b9848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06, skipping insertion in model container [2024-11-16 08:47:06,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:47:06,249 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7804,7817] [2024-11-16 08:47:06,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:47:06,296 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:47:06,338 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7804,7817] [2024-11-16 08:47:06,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:47:06,388 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:47:06,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06 WrapperNode [2024-11-16 08:47:06,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:47:06,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:47:06,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:47:06,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:47:06,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,436 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 687 [2024-11-16 08:47:06,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:47:06,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:47:06,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:47:06,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:47:06,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,449 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,461 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:47:06,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,476 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,477 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:47:06,484 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:47:06,484 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:47:06,484 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:47:06,485 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (1/1) ... [2024-11-16 08:47:06,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:47:06,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:47:06,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:47:06,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:47:06,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:47:06,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:47:06,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:47:06,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:47:06,674 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:47:06,676 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:47:07,205 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L322: havoc main_~node3__newmax~0#1; [2024-11-16 08:47:07,206 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L289: havoc main_~node2__newmax~0#1; [2024-11-16 08:47:07,206 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L256: havoc main_~node1__newmax~0#1;havoc main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r212~0#1, main_~init__tmp___1~0#1, main_~init__r232~0#1, main_~init__tmp___2~0#1, main_~init__r312~0#1, main_~init__tmp___3~0#1, main_~init__r322~0#1, main_~init__tmp___4~0#1, main_~init__tmp___5~0#1; [2024-11-16 08:47:07,206 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L410: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-16 08:47:07,206 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L776: havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-16 08:47:07,206 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L661: havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-16 08:47:07,207 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L546: havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-16 08:47:07,237 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-16 08:47:07,238 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:47:07,255 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:47:07,255 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:47:07,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:47:07 BoogieIcfgContainer [2024-11-16 08:47:07,256 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:47:07,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:47:07,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:47:07,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:47:07,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:47:06" (1/3) ... [2024-11-16 08:47:07,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9834612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:47:07, skipping insertion in model container [2024-11-16 08:47:07,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:47:06" (2/3) ... [2024-11-16 08:47:07,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9834612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:47:07, skipping insertion in model container [2024-11-16 08:47:07,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:47:07" (3/3) ... [2024-11-16 08:47:07,265 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2024-11-16 08:47:07,280 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:47:07,280 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:47:07,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:47:07,342 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;@2ed23cc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:47:07,342 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:47:07,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 171 states have (on average 1.654970760233918) internal successors, (283), 172 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:07,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 08:47:07,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:07,354 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:07,355 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:07,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:07,358 INFO L85 PathProgramCache]: Analyzing trace with hash 522376107, now seen corresponding path program 1 times [2024-11-16 08:47:07,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:07,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677740043] [2024-11-16 08:47:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:07,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:07,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:07,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:07,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677740043] [2024-11-16 08:47:07,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677740043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:07,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:07,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:07,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133832592] [2024-11-16 08:47:07,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:07,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:07,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:07,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:07,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:07,901 INFO L87 Difference]: Start difference. First operand has 173 states, 171 states have (on average 1.654970760233918) internal successors, (283), 172 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:07,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:07,989 INFO L93 Difference]: Finished difference Result 380 states and 604 transitions. [2024-11-16 08:47:07,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:07,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-16 08:47:07,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:08,003 INFO L225 Difference]: With dead ends: 380 [2024-11-16 08:47:08,004 INFO L226 Difference]: Without dead ends: 264 [2024-11-16 08:47:08,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:08,010 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 165 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:08,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 504 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:08,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-16 08:47:08,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2024-11-16 08:47:08,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 261 states have (on average 1.4865900383141764) internal successors, (388), 261 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 388 transitions. [2024-11-16 08:47:08,056 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 388 transitions. Word has length 63 [2024-11-16 08:47:08,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:08,056 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 388 transitions. [2024-11-16 08:47:08,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,058 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 388 transitions. [2024-11-16 08:47:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-16 08:47:08,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:08,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:08,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:47:08,060 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:08,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:08,060 INFO L85 PathProgramCache]: Analyzing trace with hash 874536069, now seen corresponding path program 1 times [2024-11-16 08:47:08,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:08,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975728378] [2024-11-16 08:47:08,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:08,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:08,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:08,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:08,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975728378] [2024-11-16 08:47:08,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975728378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:08,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:08,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:08,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086928967] [2024-11-16 08:47:08,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:08,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:08,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:08,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:08,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:08,190 INFO L87 Difference]: Start difference. First operand 262 states and 388 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:08,223 INFO L93 Difference]: Finished difference Result 642 states and 972 transitions. [2024-11-16 08:47:08,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:08,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-16 08:47:08,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:08,226 INFO L225 Difference]: With dead ends: 642 [2024-11-16 08:47:08,229 INFO L226 Difference]: Without dead ends: 443 [2024-11-16 08:47:08,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:08,231 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 139 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 461 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 [2024-11-16 08:47:08,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 461 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:08,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-16 08:47:08,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 441. [2024-11-16 08:47:08,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.5045454545454546) internal successors, (662), 440 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 662 transitions. [2024-11-16 08:47:08,257 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 662 transitions. Word has length 66 [2024-11-16 08:47:08,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:08,257 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 662 transitions. [2024-11-16 08:47:08,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,257 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 662 transitions. [2024-11-16 08:47:08,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 08:47:08,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:08,260 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:08,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:47:08,260 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:08,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:08,261 INFO L85 PathProgramCache]: Analyzing trace with hash -829768604, now seen corresponding path program 1 times [2024-11-16 08:47:08,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:08,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917875122] [2024-11-16 08:47:08,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:08,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:08,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:08,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:08,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917875122] [2024-11-16 08:47:08,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917875122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:08,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:08,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:08,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141707253] [2024-11-16 08:47:08,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:08,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:08,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:08,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:08,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:08,379 INFO L87 Difference]: Start difference. First operand 441 states and 662 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:08,407 INFO L93 Difference]: Finished difference Result 1161 states and 1764 transitions. [2024-11-16 08:47:08,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:08,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 08:47:08,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:08,413 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 08:47:08,414 INFO L226 Difference]: Without dead ends: 783 [2024-11-16 08:47:08,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:08,417 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 132 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 462 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 [2024-11-16 08:47:08,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 462 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2024-11-16 08:47:08,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 781. [2024-11-16 08:47:08,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 780 states have (on average 1.5102564102564102) internal successors, (1178), 780 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1178 transitions. [2024-11-16 08:47:08,449 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1178 transitions. Word has length 69 [2024-11-16 08:47:08,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:08,449 INFO L471 AbstractCegarLoop]: Abstraction has 781 states and 1178 transitions. [2024-11-16 08:47:08,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,450 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1178 transitions. [2024-11-16 08:47:08,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 08:47:08,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:08,452 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:08,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:47:08,452 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:08,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:08,453 INFO L85 PathProgramCache]: Analyzing trace with hash -177238114, now seen corresponding path program 1 times [2024-11-16 08:47:08,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:08,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902376010] [2024-11-16 08:47:08,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:08,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:08,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:08,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902376010] [2024-11-16 08:47:08,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902376010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:08,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:08,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:47:08,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459694727] [2024-11-16 08:47:08,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:08,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:47:08,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:08,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:47:08,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:08,570 INFO L87 Difference]: Start difference. First operand 781 states and 1178 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:08,709 INFO L93 Difference]: Finished difference Result 3357 states and 5168 transitions. [2024-11-16 08:47:08,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:47:08,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-16 08:47:08,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:08,717 INFO L225 Difference]: With dead ends: 3357 [2024-11-16 08:47:08,717 INFO L226 Difference]: Without dead ends: 2639 [2024-11-16 08:47:08,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:47:08,719 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 939 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:08,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 1827 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:08,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2024-11-16 08:47:08,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 1392. [2024-11-16 08:47:08,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 1.5240833932422717) internal successors, (2120), 1391 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 2120 transitions. [2024-11-16 08:47:08,750 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 2120 transitions. Word has length 72 [2024-11-16 08:47:08,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:08,750 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 2120 transitions. [2024-11-16 08:47:08,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 2120 transitions. [2024-11-16 08:47:08,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 08:47:08,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:08,753 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:08,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:47:08,753 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:08,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:08,753 INFO L85 PathProgramCache]: Analyzing trace with hash 225657316, now seen corresponding path program 1 times [2024-11-16 08:47:08,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:08,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788665265] [2024-11-16 08:47:08,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:08,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:08,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:08,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:08,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788665265] [2024-11-16 08:47:08,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788665265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:08,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:08,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:08,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576674912] [2024-11-16 08:47:08,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:08,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:08,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:08,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:08,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:08,863 INFO L87 Difference]: Start difference. First operand 1392 states and 2120 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:08,894 INFO L93 Difference]: Finished difference Result 2727 states and 4182 transitions. [2024-11-16 08:47:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:08,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-16 08:47:08,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:08,901 INFO L225 Difference]: With dead ends: 2727 [2024-11-16 08:47:08,901 INFO L226 Difference]: Without dead ends: 1965 [2024-11-16 08:47:08,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:08,904 INFO L432 NwaCegarLoop]: 361 mSDtfsCounter, 147 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:08,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 572 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:08,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-16 08:47:08,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1963. [2024-11-16 08:47:08,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1963 states, 1962 states have (on average 1.5224260958205913) internal successors, (2987), 1962 states have internal predecessors, (2987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2987 transitions. [2024-11-16 08:47:08,937 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2987 transitions. Word has length 74 [2024-11-16 08:47:08,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:08,937 INFO L471 AbstractCegarLoop]: Abstraction has 1963 states and 2987 transitions. [2024-11-16 08:47:08,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:08,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2987 transitions. [2024-11-16 08:47:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 08:47:08,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:08,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:08,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:47:08,940 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:08,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:08,942 INFO L85 PathProgramCache]: Analyzing trace with hash 510565560, now seen corresponding path program 1 times [2024-11-16 08:47:08,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:08,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604992136] [2024-11-16 08:47:08,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:08,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:09,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:09,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604992136] [2024-11-16 08:47:09,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604992136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:09,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:09,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:09,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397899090] [2024-11-16 08:47:09,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:09,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:09,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:09,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:09,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:09,037 INFO L87 Difference]: Start difference. First operand 1963 states and 2987 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:09,065 INFO L93 Difference]: Finished difference Result 3764 states and 5739 transitions. [2024-11-16 08:47:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:09,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-16 08:47:09,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:09,071 INFO L225 Difference]: With dead ends: 3764 [2024-11-16 08:47:09,072 INFO L226 Difference]: Without dead ends: 2728 [2024-11-16 08:47:09,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:09,076 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 140 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:09,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 556 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:09,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2024-11-16 08:47:09,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 2726. [2024-11-16 08:47:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2726 states, 2725 states have (on average 1.514862385321101) internal successors, (4128), 2725 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:09,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 4128 transitions. [2024-11-16 08:47:09,116 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 4128 transitions. Word has length 74 [2024-11-16 08:47:09,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:09,116 INFO L471 AbstractCegarLoop]: Abstraction has 2726 states and 4128 transitions. [2024-11-16 08:47:09,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:09,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 4128 transitions. [2024-11-16 08:47:09,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 08:47:09,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:09,117 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:09,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:47:09,118 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:09,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:09,118 INFO L85 PathProgramCache]: Analyzing trace with hash 75434084, now seen corresponding path program 1 times [2024-11-16 08:47:09,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:09,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90510880] [2024-11-16 08:47:09,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:09,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:09,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:09,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90510880] [2024-11-16 08:47:09,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90510880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:09,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:09,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:09,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676148036] [2024-11-16 08:47:09,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:09,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:09,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:09,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:09,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:09,180 INFO L87 Difference]: Start difference. First operand 2726 states and 4128 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:09,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:09,208 INFO L93 Difference]: Finished difference Result 5183 states and 7858 transitions. [2024-11-16 08:47:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:09,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-16 08:47:09,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:09,217 INFO L225 Difference]: With dead ends: 5183 [2024-11-16 08:47:09,217 INFO L226 Difference]: Without dead ends: 3747 [2024-11-16 08:47:09,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:09,222 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 133 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:09,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 532 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:09,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2024-11-16 08:47:09,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3745. [2024-11-16 08:47:09,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3745 states, 3744 states have (on average 1.5050747863247864) internal successors, (5635), 3744 states have internal predecessors, (5635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3745 states to 3745 states and 5635 transitions. [2024-11-16 08:47:09,294 INFO L78 Accepts]: Start accepts. Automaton has 3745 states and 5635 transitions. Word has length 74 [2024-11-16 08:47:09,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:09,294 INFO L471 AbstractCegarLoop]: Abstraction has 3745 states and 5635 transitions. [2024-11-16 08:47:09,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3745 states and 5635 transitions. [2024-11-16 08:47:09,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 08:47:09,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:09,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:09,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:47:09,295 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:09,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:09,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1540376902, now seen corresponding path program 1 times [2024-11-16 08:47:09,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:09,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056242735] [2024-11-16 08:47:09,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:09,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:09,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:09,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:09,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056242735] [2024-11-16 08:47:09,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056242735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:09,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:09,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:09,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878331909] [2024-11-16 08:47:09,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:09,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:09,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:09,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:09,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:09,392 INFO L87 Difference]: Start difference. First operand 3745 states and 5635 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:09,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:09,490 INFO L93 Difference]: Finished difference Result 12138 states and 18366 transitions. [2024-11-16 08:47:09,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:09,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-16 08:47:09,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:09,510 INFO L225 Difference]: With dead ends: 12138 [2024-11-16 08:47:09,510 INFO L226 Difference]: Without dead ends: 8493 [2024-11-16 08:47:09,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:09,517 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 478 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:09,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 836 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:09,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2024-11-16 08:47:09,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 6100. [2024-11-16 08:47:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6100 states, 6099 states have (on average 1.5025414002295459) internal successors, (9164), 6099 states have internal predecessors, (9164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:09,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6100 states to 6100 states and 9164 transitions. [2024-11-16 08:47:09,618 INFO L78 Accepts]: Start accepts. Automaton has 6100 states and 9164 transitions. Word has length 74 [2024-11-16 08:47:09,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:09,618 INFO L471 AbstractCegarLoop]: Abstraction has 6100 states and 9164 transitions. [2024-11-16 08:47:09,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:09,618 INFO L276 IsEmpty]: Start isEmpty. Operand 6100 states and 9164 transitions. [2024-11-16 08:47:09,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 08:47:09,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:09,619 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:09,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:47:09,619 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:09,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:09,619 INFO L85 PathProgramCache]: Analyzing trace with hash 515839746, now seen corresponding path program 1 times [2024-11-16 08:47:09,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:09,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311082192] [2024-11-16 08:47:09,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:09,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:09,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:09,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311082192] [2024-11-16 08:47:09,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311082192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:09,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:09,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:09,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077540077] [2024-11-16 08:47:09,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:09,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:09,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:09,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:09,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:09,743 INFO L87 Difference]: Start difference. First operand 6100 states and 9164 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:09,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:09,856 INFO L93 Difference]: Finished difference Result 19452 states and 29272 transitions. [2024-11-16 08:47:09,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:09,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-16 08:47:09,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:09,898 INFO L225 Difference]: With dead ends: 19452 [2024-11-16 08:47:09,899 INFO L226 Difference]: Without dead ends: 13452 [2024-11-16 08:47:09,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:09,912 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 476 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:09,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 767 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:09,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13452 states. [2024-11-16 08:47:10,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13452 to 9747. [2024-11-16 08:47:10,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9747 states, 9746 states have (on average 1.494664477734455) internal successors, (14567), 9746 states have internal predecessors, (14567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:10,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9747 states to 9747 states and 14567 transitions. [2024-11-16 08:47:10,074 INFO L78 Accepts]: Start accepts. Automaton has 9747 states and 14567 transitions. Word has length 76 [2024-11-16 08:47:10,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:10,075 INFO L471 AbstractCegarLoop]: Abstraction has 9747 states and 14567 transitions. [2024-11-16 08:47:10,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:10,075 INFO L276 IsEmpty]: Start isEmpty. Operand 9747 states and 14567 transitions. [2024-11-16 08:47:10,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-16 08:47:10,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:10,076 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:10,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:47:10,076 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:10,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:10,076 INFO L85 PathProgramCache]: Analyzing trace with hash -581845086, now seen corresponding path program 1 times [2024-11-16 08:47:10,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:10,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300928318] [2024-11-16 08:47:10,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:10,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:10,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:10,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:10,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300928318] [2024-11-16 08:47:10,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300928318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:10,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:10,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:10,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768563858] [2024-11-16 08:47:10,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:10,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:10,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:10,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:10,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:10,183 INFO L87 Difference]: Start difference. First operand 9747 states and 14567 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:10,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:10,317 INFO L93 Difference]: Finished difference Result 30526 states and 45674 transitions. [2024-11-16 08:47:10,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:10,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-16 08:47:10,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:10,351 INFO L225 Difference]: With dead ends: 30526 [2024-11-16 08:47:10,352 INFO L226 Difference]: Without dead ends: 20879 [2024-11-16 08:47:10,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:10,368 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 474 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:10,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 835 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20879 states. [2024-11-16 08:47:10,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20879 to 15270. [2024-11-16 08:47:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15270 states, 15269 states have (on average 1.4865413583076823) internal successors, (22698), 15269 states have internal predecessors, (22698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15270 states to 15270 states and 22698 transitions. [2024-11-16 08:47:10,625 INFO L78 Accepts]: Start accepts. Automaton has 15270 states and 22698 transitions. Word has length 78 [2024-11-16 08:47:10,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:10,625 INFO L471 AbstractCegarLoop]: Abstraction has 15270 states and 22698 transitions. [2024-11-16 08:47:10,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:10,626 INFO L276 IsEmpty]: Start isEmpty. Operand 15270 states and 22698 transitions. [2024-11-16 08:47:10,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 08:47:10,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:10,627 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:10,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:47:10,627 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:10,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:10,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2102231720, now seen corresponding path program 1 times [2024-11-16 08:47:10,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:10,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687999761] [2024-11-16 08:47:10,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:10,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:10,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:10,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:10,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687999761] [2024-11-16 08:47:10,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687999761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:10,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:10,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:47:10,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687451787] [2024-11-16 08:47:10,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:10,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:47:10,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:10,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:47:10,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:10,831 INFO L87 Difference]: Start difference. First operand 15270 states and 22698 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:11,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:11,025 INFO L93 Difference]: Finished difference Result 30442 states and 45263 transitions. [2024-11-16 08:47:11,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:11,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-16 08:47:11,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:11,055 INFO L225 Difference]: With dead ends: 30442 [2024-11-16 08:47:11,056 INFO L226 Difference]: Without dead ends: 15272 [2024-11-16 08:47:11,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:47:11,066 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 133 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:11,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 892 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:11,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15272 states. [2024-11-16 08:47:11,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15272 to 15270. [2024-11-16 08:47:11,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15270 states, 15269 states have (on average 1.4783548365970267) internal successors, (22573), 15269 states have internal predecessors, (22573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:11,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15270 states to 15270 states and 22573 transitions. [2024-11-16 08:47:11,216 INFO L78 Accepts]: Start accepts. Automaton has 15270 states and 22573 transitions. Word has length 81 [2024-11-16 08:47:11,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:11,216 INFO L471 AbstractCegarLoop]: Abstraction has 15270 states and 22573 transitions. [2024-11-16 08:47:11,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:11,216 INFO L276 IsEmpty]: Start isEmpty. Operand 15270 states and 22573 transitions. [2024-11-16 08:47:11,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-16 08:47:11,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:11,217 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:11,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:47:11,217 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:11,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:11,217 INFO L85 PathProgramCache]: Analyzing trace with hash 257252914, now seen corresponding path program 1 times [2024-11-16 08:47:11,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:11,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688891150] [2024-11-16 08:47:11,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:11,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:11,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:11,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688891150] [2024-11-16 08:47:11,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688891150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:11,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:11,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:47:11,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892097906] [2024-11-16 08:47:11,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:11,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:47:11,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:11,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:47:11,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:11,425 INFO L87 Difference]: Start difference. First operand 15270 states and 22573 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:11,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:11,574 INFO L93 Difference]: Finished difference Result 43690 states and 64739 transitions. [2024-11-16 08:47:11,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:11,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-16 08:47:11,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:11,620 INFO L225 Difference]: With dead ends: 43690 [2024-11-16 08:47:11,621 INFO L226 Difference]: Without dead ends: 28520 [2024-11-16 08:47:11,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:47:11,642 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 385 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:11,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 682 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:11,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28520 states. [2024-11-16 08:47:11,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28520 to 28518. [2024-11-16 08:47:11,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28518 states, 28517 states have (on average 1.4696496826454395) internal successors, (41910), 28517 states have internal predecessors, (41910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:12,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28518 states to 28518 states and 41910 transitions. [2024-11-16 08:47:12,033 INFO L78 Accepts]: Start accepts. Automaton has 28518 states and 41910 transitions. Word has length 88 [2024-11-16 08:47:12,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:12,033 INFO L471 AbstractCegarLoop]: Abstraction has 28518 states and 41910 transitions. [2024-11-16 08:47:12,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:12,033 INFO L276 IsEmpty]: Start isEmpty. Operand 28518 states and 41910 transitions. [2024-11-16 08:47:12,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 08:47:12,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:12,034 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:12,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:47:12,034 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:12,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:12,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1082846384, now seen corresponding path program 1 times [2024-11-16 08:47:12,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:12,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142726970] [2024-11-16 08:47:12,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:12,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:12,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:12,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:12,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142726970] [2024-11-16 08:47:12,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142726970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:12,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:12,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:47:12,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562305104] [2024-11-16 08:47:12,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:12,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:47:12,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:12,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:47:12,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:12,342 INFO L87 Difference]: Start difference. First operand 28518 states and 41910 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:12,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:12,442 INFO L93 Difference]: Finished difference Result 31708 states and 45461 transitions. [2024-11-16 08:47:12,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:12,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-16 08:47:12,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:12,583 INFO L225 Difference]: With dead ends: 31708 [2024-11-16 08:47:12,583 INFO L226 Difference]: Without dead ends: 31706 [2024-11-16 08:47:12,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:12,588 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:12,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 959 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:12,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31706 states. [2024-11-16 08:47:12,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31706 to 31706. [2024-11-16 08:47:12,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31706 states, 31705 states have (on average 1.4221416180413184) internal successors, (45089), 31705 states have internal predecessors, (45089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:12,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31706 states to 31706 states and 45089 transitions. [2024-11-16 08:47:12,956 INFO L78 Accepts]: Start accepts. Automaton has 31706 states and 45089 transitions. Word has length 91 [2024-11-16 08:47:12,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:12,956 INFO L471 AbstractCegarLoop]: Abstraction has 31706 states and 45089 transitions. [2024-11-16 08:47:12,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:12,957 INFO L276 IsEmpty]: Start isEmpty. Operand 31706 states and 45089 transitions. [2024-11-16 08:47:12,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 08:47:12,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:12,958 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:47:12,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:47:12,959 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:12,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:12,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1880164069, now seen corresponding path program 1 times [2024-11-16 08:47:12,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:12,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161025571] [2024-11-16 08:47:12,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:12,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:13,076 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 08:47:13,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:13,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161025571] [2024-11-16 08:47:13,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161025571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:13,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:13,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:47:13,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615312300] [2024-11-16 08:47:13,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:13,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:47:13,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:13,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:47:13,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:13,078 INFO L87 Difference]: Start difference. First operand 31706 states and 45089 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 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) [2024-11-16 08:47:13,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:13,280 INFO L93 Difference]: Finished difference Result 78096 states and 111119 transitions. [2024-11-16 08:47:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:13,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 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 119 [2024-11-16 08:47:13,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:13,531 INFO L225 Difference]: With dead ends: 78096 [2024-11-16 08:47:13,531 INFO L226 Difference]: Without dead ends: 62534 [2024-11-16 08:47:13,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:47:13,565 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 598 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:13,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1141 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:13,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62534 states. [2024-11-16 08:47:14,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62534 to 48804. [2024-11-16 08:47:14,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48804 states, 48803 states have (on average 1.419236522344938) internal successors, (69263), 48803 states have internal predecessors, (69263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:14,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48804 states to 48804 states and 69263 transitions. [2024-11-16 08:47:14,237 INFO L78 Accepts]: Start accepts. Automaton has 48804 states and 69263 transitions. Word has length 119 [2024-11-16 08:47:14,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:14,237 INFO L471 AbstractCegarLoop]: Abstraction has 48804 states and 69263 transitions. [2024-11-16 08:47:14,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 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) [2024-11-16 08:47:14,237 INFO L276 IsEmpty]: Start isEmpty. Operand 48804 states and 69263 transitions. [2024-11-16 08:47:14,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 08:47:14,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:14,239 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:47:14,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:47:14,240 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:14,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:14,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1595255825, now seen corresponding path program 1 times [2024-11-16 08:47:14,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:14,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119527136] [2024-11-16 08:47:14,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:14,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-16 08:47:14,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:14,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119527136] [2024-11-16 08:47:14,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119527136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:14,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:14,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:47:14,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520353429] [2024-11-16 08:47:14,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:14,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:47:14,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:14,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:47:14,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:14,482 INFO L87 Difference]: Start difference. First operand 48804 states and 69263 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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) [2024-11-16 08:47:14,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:14,685 INFO L93 Difference]: Finished difference Result 87390 states and 124423 transitions. [2024-11-16 08:47:14,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:14,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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 119 [2024-11-16 08:47:14,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:14,776 INFO L225 Difference]: With dead ends: 87390 [2024-11-16 08:47:14,776 INFO L226 Difference]: Without dead ends: 72454 [2024-11-16 08:47:14,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:47:14,811 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 598 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:14,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1112 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:14,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72454 states. [2024-11-16 08:47:15,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72454 to 66256. [2024-11-16 08:47:15,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66256 states, 66255 states have (on average 1.419228737453777) internal successors, (94031), 66255 states have internal predecessors, (94031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:15,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66256 states to 66256 states and 94031 transitions. [2024-11-16 08:47:15,731 INFO L78 Accepts]: Start accepts. Automaton has 66256 states and 94031 transitions. Word has length 119 [2024-11-16 08:47:15,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:15,731 INFO L471 AbstractCegarLoop]: Abstraction has 66256 states and 94031 transitions. [2024-11-16 08:47:15,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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) [2024-11-16 08:47:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 66256 states and 94031 transitions. [2024-11-16 08:47:15,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 08:47:15,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:15,734 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:47:15,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:47:15,734 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:15,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:15,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2030387301, now seen corresponding path program 1 times [2024-11-16 08:47:15,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:15,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530391316] [2024-11-16 08:47:15,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:15,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:16,076 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 08:47:16,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:16,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530391316] [2024-11-16 08:47:16,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530391316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:16,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:16,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:47:16,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067176375] [2024-11-16 08:47:16,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:16,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:47:16,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:16,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:47:16,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:16,077 INFO L87 Difference]: Start difference. First operand 66256 states and 94031 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:16,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:16,316 INFO L93 Difference]: Finished difference Result 93340 states and 132901 transitions. [2024-11-16 08:47:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:16,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-16 08:47:16,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:16,420 INFO L225 Difference]: With dead ends: 93340 [2024-11-16 08:47:16,421 INFO L226 Difference]: Without dead ends: 78398 [2024-11-16 08:47:16,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:47:16,457 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 608 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:16,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 1214 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:16,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78398 states. [2024-11-16 08:47:17,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78398 to 75928. [2024-11-16 08:47:17,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75928 states, 75927 states have (on average 1.4202984445585891) internal successors, (107839), 75927 states have internal predecessors, (107839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:17,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75928 states to 75928 states and 107839 transitions. [2024-11-16 08:47:17,513 INFO L78 Accepts]: Start accepts. Automaton has 75928 states and 107839 transitions. Word has length 119 [2024-11-16 08:47:17,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:17,514 INFO L471 AbstractCegarLoop]: Abstraction has 75928 states and 107839 transitions. [2024-11-16 08:47:17,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:17,514 INFO L276 IsEmpty]: Start isEmpty. Operand 75928 states and 107839 transitions. [2024-11-16 08:47:17,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 08:47:17,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:17,517 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:47:17,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:47:17,517 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:17,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:17,517 INFO L85 PathProgramCache]: Analyzing trace with hash 381262581, now seen corresponding path program 1 times [2024-11-16 08:47:17,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:17,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283784778] [2024-11-16 08:47:17,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:17,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:17,647 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:17,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:17,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283784778] [2024-11-16 08:47:17,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283784778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:17,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:17,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:17,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113246005] [2024-11-16 08:47:17,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:17,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:17,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:17,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:17,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:17,649 INFO L87 Difference]: Start difference. First operand 75928 states and 107839 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 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) [2024-11-16 08:47:18,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:18,023 INFO L93 Difference]: Finished difference Result 141150 states and 200585 transitions. [2024-11-16 08:47:18,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:18,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 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 [2024-11-16 08:47:18,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:18,107 INFO L225 Difference]: With dead ends: 141150 [2024-11-16 08:47:18,108 INFO L226 Difference]: Without dead ends: 65322 [2024-11-16 08:47:18,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:18,168 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 97 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:18,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 542 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:18,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65322 states. [2024-11-16 08:47:18,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65322 to 65110. [2024-11-16 08:47:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65110 states, 65109 states have (on average 1.4151499792655393) internal successors, (92139), 65109 states have internal predecessors, (92139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:19,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65110 states to 65110 states and 92139 transitions. [2024-11-16 08:47:19,092 INFO L78 Accepts]: Start accepts. Automaton has 65110 states and 92139 transitions. Word has length 121 [2024-11-16 08:47:19,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:19,092 INFO L471 AbstractCegarLoop]: Abstraction has 65110 states and 92139 transitions. [2024-11-16 08:47:19,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 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) [2024-11-16 08:47:19,093 INFO L276 IsEmpty]: Start isEmpty. Operand 65110 states and 92139 transitions. [2024-11-16 08:47:19,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 08:47:19,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:19,094 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:47:19,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:47:19,094 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:19,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:19,094 INFO L85 PathProgramCache]: Analyzing trace with hash -53868895, now seen corresponding path program 1 times [2024-11-16 08:47:19,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:19,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086629347] [2024-11-16 08:47:19,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:19,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:19,548 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:19,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:19,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086629347] [2024-11-16 08:47:19,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086629347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:19,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:19,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:19,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692817510] [2024-11-16 08:47:19,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:19,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:19,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:19,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:19,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:19,550 INFO L87 Difference]: Start difference. First operand 65110 states and 92139 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 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) [2024-11-16 08:47:19,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:19,721 INFO L93 Difference]: Finished difference Result 92898 states and 131501 transitions. [2024-11-16 08:47:19,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:19,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 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 [2024-11-16 08:47:19,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:19,757 INFO L225 Difference]: With dead ends: 92898 [2024-11-16 08:47:19,757 INFO L226 Difference]: Without dead ends: 27889 [2024-11-16 08:47:19,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:19,794 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 83 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:19,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 491 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:19,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27889 states. [2024-11-16 08:47:19,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27889 to 27813. [2024-11-16 08:47:20,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27813 states, 27812 states have (on average 1.4098230979433337) internal successors, (39210), 27812 states have internal predecessors, (39210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:20,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27813 states to 27813 states and 39210 transitions. [2024-11-16 08:47:20,292 INFO L78 Accepts]: Start accepts. Automaton has 27813 states and 39210 transitions. Word has length 121 [2024-11-16 08:47:20,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:20,292 INFO L471 AbstractCegarLoop]: Abstraction has 27813 states and 39210 transitions. [2024-11-16 08:47:20,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 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) [2024-11-16 08:47:20,292 INFO L276 IsEmpty]: Start isEmpty. Operand 27813 states and 39210 transitions. [2024-11-16 08:47:20,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 08:47:20,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:20,297 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:47:20,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:47:20,297 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:20,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:20,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1134953355, now seen corresponding path program 1 times [2024-11-16 08:47:20,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:20,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552431059] [2024-11-16 08:47:20,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:20,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:20,414 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:20,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:20,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552431059] [2024-11-16 08:47:20,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552431059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:20,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:20,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:20,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413835144] [2024-11-16 08:47:20,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:20,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:20,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:20,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:20,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:20,417 INFO L87 Difference]: Start difference. First operand 27813 states and 39210 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 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) [2024-11-16 08:47:20,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:20,502 INFO L93 Difference]: Finished difference Result 39942 states and 56301 transitions. [2024-11-16 08:47:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:20,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 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 [2024-11-16 08:47:20,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:20,515 INFO L225 Difference]: With dead ends: 39942 [2024-11-16 08:47:20,516 INFO L226 Difference]: Without dead ends: 12230 [2024-11-16 08:47:20,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:20,536 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 69 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:20,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 440 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:20,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12230 states. [2024-11-16 08:47:20,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12230 to 12216. [2024-11-16 08:47:20,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12216 states, 12215 states have (on average 1.4026197298403602) internal successors, (17133), 12215 states have internal predecessors, (17133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:20,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12216 states to 12216 states and 17133 transitions. [2024-11-16 08:47:20,649 INFO L78 Accepts]: Start accepts. Automaton has 12216 states and 17133 transitions. Word has length 121 [2024-11-16 08:47:20,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:20,649 INFO L471 AbstractCegarLoop]: Abstraction has 12216 states and 17133 transitions. [2024-11-16 08:47:20,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 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) [2024-11-16 08:47:20,650 INFO L276 IsEmpty]: Start isEmpty. Operand 12216 states and 17133 transitions. [2024-11-16 08:47:20,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 08:47:20,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:20,651 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:20,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:47:20,651 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:20,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:20,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1825188036, now seen corresponding path program 1 times [2024-11-16 08:47:20,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:20,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388381485] [2024-11-16 08:47:20,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:20,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:20,875 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 08:47:20,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:20,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388381485] [2024-11-16 08:47:20,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388381485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:20,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:20,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:20,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807989357] [2024-11-16 08:47:20,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:20,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:20,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:20,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:20,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:20,877 INFO L87 Difference]: Start difference. First operand 12216 states and 17133 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 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) [2024-11-16 08:47:21,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:21,176 INFO L93 Difference]: Finished difference Result 30137 states and 42173 transitions. [2024-11-16 08:47:21,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:21,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 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 122 [2024-11-16 08:47:21,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:21,196 INFO L225 Difference]: With dead ends: 30137 [2024-11-16 08:47:21,196 INFO L226 Difference]: Without dead ends: 22167 [2024-11-16 08:47:21,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:21,201 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 430 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:21,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 678 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:47:21,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22167 states. [2024-11-16 08:47:21,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22167 to 19523. [2024-11-16 08:47:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19523 states, 19522 states have (on average 1.3978076016801557) internal successors, (27288), 19522 states have internal predecessors, (27288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:21,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19523 states to 19523 states and 27288 transitions. [2024-11-16 08:47:21,414 INFO L78 Accepts]: Start accepts. Automaton has 19523 states and 27288 transitions. Word has length 122 [2024-11-16 08:47:21,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:21,414 INFO L471 AbstractCegarLoop]: Abstraction has 19523 states and 27288 transitions. [2024-11-16 08:47:21,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 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) [2024-11-16 08:47:21,414 INFO L276 IsEmpty]: Start isEmpty. Operand 19523 states and 27288 transitions. [2024-11-16 08:47:21,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 08:47:21,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:21,415 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:21,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:47:21,415 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:21,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:21,416 INFO L85 PathProgramCache]: Analyzing trace with hash -999264988, now seen corresponding path program 1 times [2024-11-16 08:47:21,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:21,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938145341] [2024-11-16 08:47:21,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:21,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 08:47:21,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:21,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938145341] [2024-11-16 08:47:21,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938145341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:21,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:21,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:21,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716218207] [2024-11-16 08:47:21,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:21,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:21,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:21,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:21,671 INFO L87 Difference]: Start difference. First operand 19523 states and 27288 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 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) [2024-11-16 08:47:21,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:21,799 INFO L93 Difference]: Finished difference Result 48919 states and 68176 transitions. [2024-11-16 08:47:21,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:47:21,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 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 122 [2024-11-16 08:47:21,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:21,840 INFO L225 Difference]: With dead ends: 48919 [2024-11-16 08:47:21,841 INFO L226 Difference]: Without dead ends: 36470 [2024-11-16 08:47:21,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:47:21,862 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 452 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:21,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 694 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:21,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36470 states. [2024-11-16 08:47:22,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36470 to 31675. [2024-11-16 08:47:22,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31675 states, 31674 states have (on average 1.3963187472374818) internal successors, (44227), 31674 states have internal predecessors, (44227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:22,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31675 states to 31675 states and 44227 transitions. [2024-11-16 08:47:22,419 INFO L78 Accepts]: Start accepts. Automaton has 31675 states and 44227 transitions. Word has length 122 [2024-11-16 08:47:22,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:22,420 INFO L471 AbstractCegarLoop]: Abstraction has 31675 states and 44227 transitions. [2024-11-16 08:47:22,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 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) [2024-11-16 08:47:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 31675 states and 44227 transitions. [2024-11-16 08:47:22,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 08:47:22,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:22,420 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:22,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:47:22,421 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:22,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:22,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2012061471, now seen corresponding path program 1 times [2024-11-16 08:47:22,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:22,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265377691] [2024-11-16 08:47:22,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:22,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 08:47:22,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:22,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265377691] [2024-11-16 08:47:22,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265377691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:22,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:22,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:22,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690528431] [2024-11-16 08:47:22,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:22,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:22,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:22,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:22,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:22,473 INFO L87 Difference]: Start difference. First operand 31675 states and 44227 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 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) [2024-11-16 08:47:22,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:22,608 INFO L93 Difference]: Finished difference Result 73256 states and 102415 transitions. [2024-11-16 08:47:22,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:22,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 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 125 [2024-11-16 08:47:22,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:22,673 INFO L225 Difference]: With dead ends: 73256 [2024-11-16 08:47:22,674 INFO L226 Difference]: Without dead ends: 53576 [2024-11-16 08:47:22,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:22,699 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 105 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:22,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 453 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:22,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53576 states. [2024-11-16 08:47:23,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53576 to 53491. [2024-11-16 08:47:23,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53491 states, 53490 states have (on average 1.3950644980370162) internal successors, (74622), 53490 states have internal predecessors, (74622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:23,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53491 states to 53491 states and 74622 transitions. [2024-11-16 08:47:23,493 INFO L78 Accepts]: Start accepts. Automaton has 53491 states and 74622 transitions. Word has length 125 [2024-11-16 08:47:23,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:23,493 INFO L471 AbstractCegarLoop]: Abstraction has 53491 states and 74622 transitions. [2024-11-16 08:47:23,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 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) [2024-11-16 08:47:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 53491 states and 74622 transitions. [2024-11-16 08:47:23,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 08:47:23,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:23,494 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:23,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:47:23,495 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:23,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:23,495 INFO L85 PathProgramCache]: Analyzing trace with hash -323117729, now seen corresponding path program 1 times [2024-11-16 08:47:23,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:23,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542134065] [2024-11-16 08:47:23,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:23,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:23,579 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 08:47:23,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:23,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542134065] [2024-11-16 08:47:23,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542134065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:23,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:23,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:47:23,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094726711] [2024-11-16 08:47:23,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:23,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:47:23,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:23,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:47:23,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:23,581 INFO L87 Difference]: Start difference. First operand 53491 states and 74622 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 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) [2024-11-16 08:47:23,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:23,785 INFO L93 Difference]: Finished difference Result 92981 states and 130030 transitions. [2024-11-16 08:47:23,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:47:23,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 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 125 [2024-11-16 08:47:23,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:23,875 INFO L225 Difference]: With dead ends: 92981 [2024-11-16 08:47:23,876 INFO L226 Difference]: Without dead ends: 72983 [2024-11-16 08:47:23,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:47:23,911 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 274 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:23,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 785 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:23,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72983 states. [2024-11-16 08:47:24,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72983 to 68201. [2024-11-16 08:47:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68201 states, 68200 states have (on average 1.3939002932551319) internal successors, (95064), 68200 states have internal predecessors, (95064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:24,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68201 states to 68201 states and 95064 transitions. [2024-11-16 08:47:24,768 INFO L78 Accepts]: Start accepts. Automaton has 68201 states and 95064 transitions. Word has length 125 [2024-11-16 08:47:24,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:24,769 INFO L471 AbstractCegarLoop]: Abstraction has 68201 states and 95064 transitions. [2024-11-16 08:47:24,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 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) [2024-11-16 08:47:24,769 INFO L276 IsEmpty]: Start isEmpty. Operand 68201 states and 95064 transitions. [2024-11-16 08:47:24,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 08:47:24,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:24,770 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:24,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:47:24,770 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:24,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:24,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1593122316, now seen corresponding path program 1 times [2024-11-16 08:47:24,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:24,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970676569] [2024-11-16 08:47:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:24,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 08:47:24,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:24,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970676569] [2024-11-16 08:47:24,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970676569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:24,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:24,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:24,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822047218] [2024-11-16 08:47:24,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:24,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:24,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:24,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:24,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:24,823 INFO L87 Difference]: Start difference. First operand 68201 states and 95064 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 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) [2024-11-16 08:47:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:25,142 INFO L93 Difference]: Finished difference Result 201778 states and 280534 transitions. [2024-11-16 08:47:25,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:25,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 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 126 [2024-11-16 08:47:25,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:25,701 INFO L225 Difference]: With dead ends: 201778 [2024-11-16 08:47:25,701 INFO L226 Difference]: Without dead ends: 133645 [2024-11-16 08:47:25,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:25,750 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 136 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:25,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 522 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:25,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133645 states. [2024-11-16 08:47:27,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133645 to 133643. [2024-11-16 08:47:27,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133643 states, 133642 states have (on average 1.3819906915490638) internal successors, (184692), 133642 states have internal predecessors, (184692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:27,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133643 states to 133643 states and 184692 transitions. [2024-11-16 08:47:27,397 INFO L78 Accepts]: Start accepts. Automaton has 133643 states and 184692 transitions. Word has length 126 [2024-11-16 08:47:27,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:27,397 INFO L471 AbstractCegarLoop]: Abstraction has 133643 states and 184692 transitions. [2024-11-16 08:47:27,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 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) [2024-11-16 08:47:27,398 INFO L276 IsEmpty]: Start isEmpty. Operand 133643 states and 184692 transitions. [2024-11-16 08:47:27,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 08:47:27,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:27,399 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:27,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:47:27,399 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:27,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:27,399 INFO L85 PathProgramCache]: Analyzing trace with hash 775453753, now seen corresponding path program 1 times [2024-11-16 08:47:27,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:27,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165041294] [2024-11-16 08:47:27,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:27,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:27,457 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:47:27,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:27,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165041294] [2024-11-16 08:47:27,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165041294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:27,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:27,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:27,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749304433] [2024-11-16 08:47:27,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:27,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:27,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:27,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:27,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:27,458 INFO L87 Difference]: Start difference. First operand 133643 states and 184692 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:28,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:28,694 INFO L93 Difference]: Finished difference Result 395269 states and 544758 transitions. [2024-11-16 08:47:28,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:28,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-16 08:47:28,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:29,070 INFO L225 Difference]: With dead ends: 395269 [2024-11-16 08:47:29,070 INFO L226 Difference]: Without dead ends: 261809 [2024-11-16 08:47:29,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:29,167 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 189 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:29,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 623 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:29,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261809 states. [2024-11-16 08:47:32,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261809 to 261807. [2024-11-16 08:47:32,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261807 states, 261806 states have (on average 1.3696210170889895) internal successors, (358575), 261806 states have internal predecessors, (358575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261807 states to 261807 states and 358575 transitions. [2024-11-16 08:47:32,818 INFO L78 Accepts]: Start accepts. Automaton has 261807 states and 358575 transitions. Word has length 126 [2024-11-16 08:47:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:32,819 INFO L471 AbstractCegarLoop]: Abstraction has 261807 states and 358575 transitions. [2024-11-16 08:47:32,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:32,819 INFO L276 IsEmpty]: Start isEmpty. Operand 261807 states and 358575 transitions. [2024-11-16 08:47:32,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:47:32,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:32,820 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:32,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 08:47:32,820 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:32,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:32,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1184149142, now seen corresponding path program 1 times [2024-11-16 08:47:32,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:32,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901582330] [2024-11-16 08:47:32,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:32,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:32,862 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:47:32,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:32,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901582330] [2024-11-16 08:47:32,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901582330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:32,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:32,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:32,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542374394] [2024-11-16 08:47:32,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:32,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:32,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:32,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:32,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:32,864 INFO L87 Difference]: Start difference. First operand 261807 states and 358575 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2024-11-16 08:47:34,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:34,776 INFO L93 Difference]: Finished difference Result 666297 states and 915367 transitions. [2024-11-16 08:47:34,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:34,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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 127 [2024-11-16 08:47:34,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:36,088 INFO L225 Difference]: With dead ends: 666297 [2024-11-16 08:47:36,088 INFO L226 Difference]: Without dead ends: 404721 [2024-11-16 08:47:36,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:36,199 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 120 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:36,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 487 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:36,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404721 states. [2024-11-16 08:47:39,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404721 to 264591. [2024-11-16 08:47:39,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264591 states, 264590 states have (on average 1.3692165236781435) internal successors, (362281), 264590 states have internal predecessors, (362281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:47:40,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264591 states to 264591 states and 362281 transitions. [2024-11-16 08:47:40,574 INFO L78 Accepts]: Start accepts. Automaton has 264591 states and 362281 transitions. Word has length 127 [2024-11-16 08:47:40,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:47:40,574 INFO L471 AbstractCegarLoop]: Abstraction has 264591 states and 362281 transitions. [2024-11-16 08:47:40,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2024-11-16 08:47:40,575 INFO L276 IsEmpty]: Start isEmpty. Operand 264591 states and 362281 transitions. [2024-11-16 08:47:40,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:47:40,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:47:40,576 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:47:40,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 08:47:40,576 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:47:40,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:47:40,576 INFO L85 PathProgramCache]: Analyzing trace with hash -970093555, now seen corresponding path program 1 times [2024-11-16 08:47:40,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:47:40,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167114324] [2024-11-16 08:47:40,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:47:40,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:47:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:47:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 08:47:40,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:47:40,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167114324] [2024-11-16 08:47:40,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167114324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:47:40,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:47:40,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:47:40,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928013446] [2024-11-16 08:47:40,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:47:40,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:47:40,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:47:40,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:47:40,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:40,705 INFO L87 Difference]: Start difference. First operand 264591 states and 362281 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 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) [2024-11-16 08:47:42,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:47:42,677 INFO L93 Difference]: Finished difference Result 647495 states and 882571 transitions. [2024-11-16 08:47:42,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:47:42,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 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 127 [2024-11-16 08:47:42,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:47:43,220 INFO L225 Difference]: With dead ends: 647495 [2024-11-16 08:47:43,221 INFO L226 Difference]: Without dead ends: 383257 [2024-11-16 08:47:43,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:47:43,309 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 132 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:47:43,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 490 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:47:43,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383257 states.