./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.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_lcr-var-start-time.5.2.ufo.UNBOUNDED.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 d07f8866cb9bb11c792ba110404f1fc964b1e4b380540b8d73177141eae78bfc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:36:12,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:36:12,925 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:36:12,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:36:12,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:36:12,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:36:12,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:36:12,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:36:12,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:36:12,962 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:36:12,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:36:12,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:36:12,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:36:12,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:36:12,963 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:36:12,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:36:12,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:36:12,964 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:36:12,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:36:12,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:36:12,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:36:12,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:36:12,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:36:12,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:36:12,965 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:36:12,965 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:36:12,966 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:36:12,966 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:36:12,966 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:36:12,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:36:12,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:36:12,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:36:12,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:36:12,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:36:12,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:36:12,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:36:12,967 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:36:12,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:36:12,967 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:36:12,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:36:12,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:36:12,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:36:12,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d07f8866cb9bb11c792ba110404f1fc964b1e4b380540b8d73177141eae78bfc [2024-11-16 08:36:13,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:36:13,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:36:13,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:36:13,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:36:13,178 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:36:13,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-16 08:36:14,418 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:36:14,593 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:36:14,594 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-16 08:36:14,606 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b5ea0a86/897287002f444bbab226f3e15aa3e93e/FLAG9e7e3021d [2024-11-16 08:36:14,972 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b5ea0a86/897287002f444bbab226f3e15aa3e93e [2024-11-16 08:36:14,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:36:14,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:36:14,976 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:36:14,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:36:14,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:36:14,987 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:36:14" (1/1) ... [2024-11-16 08:36:14,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6841463c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:14, skipping insertion in model container [2024-11-16 08:36:14,988 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:36:14" (1/1) ... [2024-11-16 08:36:15,020 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:36:15,211 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_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2024-11-16 08:36:15,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:36:15,258 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:36:15,290 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_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2024-11-16 08:36:15,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:36:15,332 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:36:15,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15 WrapperNode [2024-11-16 08:36:15,333 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:36:15,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:36:15,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:36:15,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:36:15,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,372 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 559 [2024-11-16 08:36:15,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:36:15,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:36:15,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:36:15,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:36:15,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,384 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,398 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 08:36:15,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,404 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:36:15,414 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:36:15,414 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:36:15,414 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:36:15,415 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (1/1) ... [2024-11-16 08:36:15,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:36:15,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:36:15,448 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 08:36:15,451 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 08:36:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:36:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:36:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:36:15,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:36:15,593 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:36:15,595 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:36:15,975 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1; [2024-11-16 08:36:15,975 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L631: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:15,975 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L252: havoc main_~node4__m4~0#1; [2024-11-16 08:36:15,976 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L401: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:15,976 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1; [2024-11-16 08:36:15,976 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L487: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:15,976 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L373: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:15,976 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-16 08:36:15,976 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L573: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:15,976 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L309: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-16 08:36:15,981 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L722: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:15,981 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L459: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:15,981 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L659: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:15,982 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L545: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:15,982 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L216: havoc main_~node2__m2~0#1; [2024-11-16 08:36:16,034 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-16 08:36:16,034 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:36:16,049 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:36:16,050 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:36:16,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:36:16 BoogieIcfgContainer [2024-11-16 08:36:16,051 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:36:16,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:36:16,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:36:16,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:36:16,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:36:14" (1/3) ... [2024-11-16 08:36:16,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d47802c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:36:16, skipping insertion in model container [2024-11-16 08:36:16,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:15" (2/3) ... [2024-11-16 08:36:16,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d47802c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:36:16, skipping insertion in model container [2024-11-16 08:36:16,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:36:16" (3/3) ... [2024-11-16 08:36:16,057 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-16 08:36:16,068 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:36:16,069 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:36:16,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:36:16,132 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;@579da36b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:36:16,132 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:36:16,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 138 states have (on average 1.6594202898550725) internal successors, (229), 139 states have internal predecessors, (229), 0 states have call successors, (0), 0 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 08:36:16,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 08:36:16,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:16,146 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] [2024-11-16 08:36:16,146 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:16,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:16,152 INFO L85 PathProgramCache]: Analyzing trace with hash -546903549, now seen corresponding path program 1 times [2024-11-16 08:36:16,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:16,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875954716] [2024-11-16 08:36:16,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:16,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:16,491 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 08:36:16,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:16,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875954716] [2024-11-16 08:36:16,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875954716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:16,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:16,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:16,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755329217] [2024-11-16 08:36:16,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:16,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:16,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:16,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:16,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:16,518 INFO L87 Difference]: Start difference. First operand has 140 states, 138 states have (on average 1.6594202898550725) internal successors, (229), 139 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 08:36:16,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:16,585 INFO L93 Difference]: Finished difference Result 331 states and 522 transitions. [2024-11-16 08:36:16,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:16,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-16 08:36:16,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:16,595 INFO L225 Difference]: With dead ends: 331 [2024-11-16 08:36:16,595 INFO L226 Difference]: Without dead ends: 220 [2024-11-16 08:36:16,597 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 08:36:16,600 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 165 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:16,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 487 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:16,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-16 08:36:16,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2024-11-16 08:36:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.4746543778801844) internal successors, (320), 217 states have internal predecessors, (320), 0 states have call successors, (0), 0 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 08:36:16,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 320 transitions. [2024-11-16 08:36:16,632 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 320 transitions. Word has length 60 [2024-11-16 08:36:16,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:16,633 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 320 transitions. [2024-11-16 08:36:16,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 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 08:36:16,633 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 320 transitions. [2024-11-16 08:36:16,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-16 08:36:16,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:16,638 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] [2024-11-16 08:36:16,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:36:16,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:16,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash 266823789, now seen corresponding path program 1 times [2024-11-16 08:36:16,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:16,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106915100] [2024-11-16 08:36:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:16,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:16,792 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 08:36:16,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:16,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106915100] [2024-11-16 08:36:16,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106915100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:16,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:16,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:16,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756008501] [2024-11-16 08:36:16,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:16,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:16,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:16,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:16,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:16,798 INFO L87 Difference]: Start difference. First operand 218 states and 320 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 08:36:16,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:16,838 INFO L93 Difference]: Finished difference Result 550 states and 836 transitions. [2024-11-16 08:36:16,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:16,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-16 08:36:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:16,841 INFO L225 Difference]: With dead ends: 550 [2024-11-16 08:36:16,841 INFO L226 Difference]: Without dead ends: 367 [2024-11-16 08:36:16,841 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 08:36:16,842 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 135 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 424 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 08:36:16,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 424 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:16,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-16 08:36:16,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2024-11-16 08:36:16,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.5054945054945055) internal successors, (548), 364 states have internal predecessors, (548), 0 states have call successors, (0), 0 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 08:36:16,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 548 transitions. [2024-11-16 08:36:16,868 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 548 transitions. Word has length 61 [2024-11-16 08:36:16,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:16,869 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 548 transitions. [2024-11-16 08:36:16,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 08:36:16,870 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 548 transitions. [2024-11-16 08:36:16,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 08:36:16,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:16,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:16,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:36:16,872 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:16,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1103739684, now seen corresponding path program 1 times [2024-11-16 08:36:16,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:16,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210320275] [2024-11-16 08:36:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:16,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:16,982 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 08:36:16,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:16,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210320275] [2024-11-16 08:36:16,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210320275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:16,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:16,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:16,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13130796] [2024-11-16 08:36:16,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:16,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:16,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:16,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:16,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:16,986 INFO L87 Difference]: Start difference. First operand 365 states and 548 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:17,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:17,012 INFO L93 Difference]: Finished difference Result 957 states and 1466 transitions. [2024-11-16 08:36:17,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:17,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-16 08:36:17,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:17,017 INFO L225 Difference]: With dead ends: 957 [2024-11-16 08:36:17,017 INFO L226 Difference]: Without dead ends: 627 [2024-11-16 08:36:17,018 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 08:36:17,019 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 130 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 409 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 08:36:17,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 409 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:17,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-16 08:36:17,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 625. [2024-11-16 08:36:17,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 624 states have (on average 1.5192307692307692) internal successors, (948), 624 states have internal predecessors, (948), 0 states have call successors, (0), 0 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 08:36:17,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 948 transitions. [2024-11-16 08:36:17,040 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 948 transitions. Word has length 62 [2024-11-16 08:36:17,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:17,040 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 948 transitions. [2024-11-16 08:36:17,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:17,041 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 948 transitions. [2024-11-16 08:36:17,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 08:36:17,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:17,042 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 08:36:17,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:36:17,042 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:17,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:17,043 INFO L85 PathProgramCache]: Analyzing trace with hash 756234342, now seen corresponding path program 1 times [2024-11-16 08:36:17,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:17,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204529954] [2024-11-16 08:36:17,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:17,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:17,117 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 08:36:17,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:17,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204529954] [2024-11-16 08:36:17,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204529954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:17,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:17,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:17,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863217121] [2024-11-16 08:36:17,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:17,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:17,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:17,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:17,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:17,120 INFO L87 Difference]: Start difference. First operand 625 states and 948 transitions. 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 08:36:17,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:17,139 INFO L93 Difference]: Finished difference Result 1669 states and 2558 transitions. [2024-11-16 08:36:17,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:17,140 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 08:36:17,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:17,142 INFO L225 Difference]: With dead ends: 1669 [2024-11-16 08:36:17,143 INFO L226 Difference]: Without dead ends: 1079 [2024-11-16 08:36:17,143 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 08:36:17,146 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 125 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 394 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 08:36:17,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 394 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:17,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-11-16 08:36:17,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1077. [2024-11-16 08:36:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1076 states have (on average 1.520446096654275) internal successors, (1636), 1076 states have internal predecessors, (1636), 0 states have call successors, (0), 0 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 08:36:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1636 transitions. [2024-11-16 08:36:17,170 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1636 transitions. Word has length 63 [2024-11-16 08:36:17,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:17,171 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1636 transitions. [2024-11-16 08:36:17,171 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 08:36:17,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1636 transitions. [2024-11-16 08:36:17,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-16 08:36:17,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:17,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:17,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:36:17,175 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:17,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:17,175 INFO L85 PathProgramCache]: Analyzing trace with hash 994307253, now seen corresponding path program 1 times [2024-11-16 08:36:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:17,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897428204] [2024-11-16 08:36:17,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:17,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:17,319 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 08:36:17,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:17,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897428204] [2024-11-16 08:36:17,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897428204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:17,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:17,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:36:17,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517096667] [2024-11-16 08:36:17,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:17,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:36:17,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:17,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:36:17,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:17,324 INFO L87 Difference]: Start difference. First operand 1077 states and 1636 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:17,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:17,474 INFO L93 Difference]: Finished difference Result 7329 states and 11242 transitions. [2024-11-16 08:36:17,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:36:17,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-16 08:36:17,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:17,492 INFO L225 Difference]: With dead ends: 7329 [2024-11-16 08:36:17,492 INFO L226 Difference]: Without dead ends: 6287 [2024-11-16 08:36:17,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:36:17,496 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 1590 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:17,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 2187 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:36:17,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6287 states. [2024-11-16 08:36:17,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6287 to 2117. [2024-11-16 08:36:17,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2116 states have (on average 1.5141776937618148) internal successors, (3204), 2116 states have internal predecessors, (3204), 0 states have call successors, (0), 0 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 08:36:17,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3204 transitions. [2024-11-16 08:36:17,547 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3204 transitions. Word has length 64 [2024-11-16 08:36:17,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:17,548 INFO L471 AbstractCegarLoop]: Abstraction has 2117 states and 3204 transitions. [2024-11-16 08:36:17,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:17,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3204 transitions. [2024-11-16 08:36:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-16 08:36:17,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:17,550 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 08:36:17,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:36:17,550 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:17,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:17,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2077100277, now seen corresponding path program 1 times [2024-11-16 08:36:17,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:17,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977746298] [2024-11-16 08:36:17,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:17,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:17,744 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 08:36:17,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:17,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977746298] [2024-11-16 08:36:17,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977746298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:17,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:17,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:36:17,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491117037] [2024-11-16 08:36:17,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:17,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:36:17,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:17,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:36:17,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:17,749 INFO L87 Difference]: Start difference. First operand 2117 states and 3204 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 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 08:36:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:17,867 INFO L93 Difference]: Finished difference Result 11087 states and 16777 transitions. [2024-11-16 08:36:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:36:17,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 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 08:36:17,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:17,890 INFO L225 Difference]: With dead ends: 11087 [2024-11-16 08:36:17,891 INFO L226 Difference]: Without dead ends: 9005 [2024-11-16 08:36:17,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:17,897 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 889 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:17,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 836 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:36:17,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9005 states. [2024-11-16 08:36:17,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9005 to 8997. [2024-11-16 08:36:18,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8997 states, 8996 states have (on average 1.5086705202312138) internal successors, (13572), 8996 states have internal predecessors, (13572), 0 states have call successors, (0), 0 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 08:36:18,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 13572 transitions. [2024-11-16 08:36:18,060 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 13572 transitions. Word has length 66 [2024-11-16 08:36:18,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:18,061 INFO L471 AbstractCegarLoop]: Abstraction has 8997 states and 13572 transitions. [2024-11-16 08:36:18,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 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 08:36:18,062 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 13572 transitions. [2024-11-16 08:36:18,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:36:18,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:18,063 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:18,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:36:18,063 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:18,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:18,063 INFO L85 PathProgramCache]: Analyzing trace with hash -74467015, now seen corresponding path program 1 times [2024-11-16 08:36:18,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:18,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157208132] [2024-11-16 08:36:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:18,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:18,115 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 08:36:18,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:18,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157208132] [2024-11-16 08:36:18,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157208132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:18,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:18,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:18,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285099575] [2024-11-16 08:36:18,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:18,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:18,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:18,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:18,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:18,117 INFO L87 Difference]: Start difference. First operand 8997 states and 13572 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:18,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:18,192 INFO L93 Difference]: Finished difference Result 24681 states and 37126 transitions. [2024-11-16 08:36:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:18,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-16 08:36:18,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:18,225 INFO L225 Difference]: With dead ends: 24681 [2024-11-16 08:36:18,225 INFO L226 Difference]: Without dead ends: 15719 [2024-11-16 08:36:18,237 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 08:36:18,238 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 141 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 473 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 08:36:18,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 473 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:18,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15719 states. [2024-11-16 08:36:18,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15719 to 15717. [2024-11-16 08:36:18,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15717 states, 15716 states have (on average 1.4907101043522524) internal successors, (23428), 15716 states have internal predecessors, (23428), 0 states have call successors, (0), 0 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 08:36:18,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15717 states to 15717 states and 23428 transitions. [2024-11-16 08:36:18,582 INFO L78 Accepts]: Start accepts. Automaton has 15717 states and 23428 transitions. Word has length 68 [2024-11-16 08:36:18,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:18,583 INFO L471 AbstractCegarLoop]: Abstraction has 15717 states and 23428 transitions. [2024-11-16 08:36:18,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:18,583 INFO L276 IsEmpty]: Start isEmpty. Operand 15717 states and 23428 transitions. [2024-11-16 08:36:18,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:36:18,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:18,584 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:18,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:36:18,584 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:18,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:18,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1022867725, now seen corresponding path program 1 times [2024-11-16 08:36:18,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:18,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132205426] [2024-11-16 08:36:18,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:18,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:18,836 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 08:36:18,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:18,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132205426] [2024-11-16 08:36:18,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132205426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:18,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:18,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:36:18,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866240277] [2024-11-16 08:36:18,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:18,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:36:18,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:18,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:36:18,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:36:18,838 INFO L87 Difference]: Start difference. First operand 15717 states and 23428 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:18,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:18,890 INFO L93 Difference]: Finished difference Result 16679 states and 24709 transitions. [2024-11-16 08:36:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:36:18,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-16 08:36:18,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:18,914 INFO L225 Difference]: With dead ends: 16679 [2024-11-16 08:36:18,914 INFO L226 Difference]: Without dead ends: 16677 [2024-11-16 08:36:18,921 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 08:36:18,922 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:18,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 746 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:18,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16677 states. [2024-11-16 08:36:19,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16677 to 16677. [2024-11-16 08:36:19,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16677 states, 16676 states have (on average 1.4624610218277765) internal successors, (24388), 16676 states have internal predecessors, (24388), 0 states have call successors, (0), 0 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 08:36:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16677 states to 16677 states and 24388 transitions. [2024-11-16 08:36:19,169 INFO L78 Accepts]: Start accepts. Automaton has 16677 states and 24388 transitions. Word has length 68 [2024-11-16 08:36:19,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:19,170 INFO L471 AbstractCegarLoop]: Abstraction has 16677 states and 24388 transitions. [2024-11-16 08:36:19,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:19,170 INFO L276 IsEmpty]: Start isEmpty. Operand 16677 states and 24388 transitions. [2024-11-16 08:36:19,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 08:36:19,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:19,171 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 08:36:19,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:36:19,171 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:19,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:19,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1496333256, now seen corresponding path program 1 times [2024-11-16 08:36:19,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:19,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611933373] [2024-11-16 08:36:19,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:19,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:19,249 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 08:36:19,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:19,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611933373] [2024-11-16 08:36:19,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611933373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:19,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:19,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:19,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453553808] [2024-11-16 08:36:19,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:19,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:19,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:19,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:19,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:19,251 INFO L87 Difference]: Start difference. First operand 16677 states and 24388 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 08:36:19,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:19,352 INFO L93 Difference]: Finished difference Result 40587 states and 59432 transitions. [2024-11-16 08:36:19,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:19,353 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 08:36:19,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:19,391 INFO L225 Difference]: With dead ends: 40587 [2024-11-16 08:36:19,391 INFO L226 Difference]: Without dead ends: 23945 [2024-11-16 08:36:19,493 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 08:36:19,497 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 114 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:19,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:19,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23945 states. [2024-11-16 08:36:19,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23945 to 23799. [2024-11-16 08:36:19,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23799 states, 23798 states have (on average 1.4558366249264645) internal successors, (34646), 23798 states have internal predecessors, (34646), 0 states have call successors, (0), 0 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 08:36:19,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23799 states to 23799 states and 34646 transitions. [2024-11-16 08:36:19,763 INFO L78 Accepts]: Start accepts. Automaton has 23799 states and 34646 transitions. Word has length 69 [2024-11-16 08:36:19,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:19,763 INFO L471 AbstractCegarLoop]: Abstraction has 23799 states and 34646 transitions. [2024-11-16 08:36:19,763 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 08:36:19,763 INFO L276 IsEmpty]: Start isEmpty. Operand 23799 states and 34646 transitions. [2024-11-16 08:36:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 08:36:19,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:19,770 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] [2024-11-16 08:36:19,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:36:19,771 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:19,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:19,771 INFO L85 PathProgramCache]: Analyzing trace with hash -329177088, now seen corresponding path program 1 times [2024-11-16 08:36:19,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:19,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470731820] [2024-11-16 08:36:19,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:19,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:19,821 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 08:36:19,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:19,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470731820] [2024-11-16 08:36:19,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470731820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:19,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:19,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:19,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116307737] [2024-11-16 08:36:19,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:19,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:19,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:19,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:19,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:19,822 INFO L87 Difference]: Start difference. First operand 23799 states and 34646 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 08:36:20,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:20,026 INFO L93 Difference]: Finished difference Result 59628 states and 86657 transitions. [2024-11-16 08:36:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:20,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-16 08:36:20,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:20,088 INFO L225 Difference]: With dead ends: 59628 [2024-11-16 08:36:20,088 INFO L226 Difference]: Without dead ends: 39562 [2024-11-16 08:36:20,108 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 08:36:20,109 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 111 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:20,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 381 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:20,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39562 states. [2024-11-16 08:36:20,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39562 to 38072. [2024-11-16 08:36:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38072 states, 38071 states have (on average 1.4425415670720496) internal successors, (54919), 38071 states have internal predecessors, (54919), 0 states have call successors, (0), 0 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 08:36:20,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38072 states to 38072 states and 54919 transitions. [2024-11-16 08:36:20,858 INFO L78 Accepts]: Start accepts. Automaton has 38072 states and 54919 transitions. Word has length 96 [2024-11-16 08:36:20,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:20,858 INFO L471 AbstractCegarLoop]: Abstraction has 38072 states and 54919 transitions. [2024-11-16 08:36:20,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 08:36:20,858 INFO L276 IsEmpty]: Start isEmpty. Operand 38072 states and 54919 transitions. [2024-11-16 08:36:20,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 08:36:20,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:20,872 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] [2024-11-16 08:36:20,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:36:20,872 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:20,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:20,872 INFO L85 PathProgramCache]: Analyzing trace with hash -441856640, now seen corresponding path program 1 times [2024-11-16 08:36:20,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:20,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372170700] [2024-11-16 08:36:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:20,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:20,921 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 08:36:20,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:20,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372170700] [2024-11-16 08:36:20,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372170700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:20,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:20,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:20,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771223441] [2024-11-16 08:36:20,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:20,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:20,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:20,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:20,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:20,923 INFO L87 Difference]: Start difference. First operand 38072 states and 54919 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 08:36:21,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:21,072 INFO L93 Difference]: Finished difference Result 72940 states and 105067 transitions. [2024-11-16 08:36:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:21,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-16 08:36:21,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:21,274 INFO L225 Difference]: With dead ends: 72940 [2024-11-16 08:36:21,274 INFO L226 Difference]: Without dead ends: 52682 [2024-11-16 08:36:21,297 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 08:36:21,302 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 113 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:21,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 429 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:21,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52682 states. [2024-11-16 08:36:21,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52682 to 48744. [2024-11-16 08:36:21,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48744 states, 48743 states have (on average 1.4289026116570585) internal successors, (69649), 48743 states have internal predecessors, (69649), 0 states have call successors, (0), 0 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 08:36:21,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48744 states to 48744 states and 69649 transitions. [2024-11-16 08:36:21,741 INFO L78 Accepts]: Start accepts. Automaton has 48744 states and 69649 transitions. Word has length 96 [2024-11-16 08:36:21,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:21,741 INFO L471 AbstractCegarLoop]: Abstraction has 48744 states and 69649 transitions. [2024-11-16 08:36:21,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 08:36:21,741 INFO L276 IsEmpty]: Start isEmpty. Operand 48744 states and 69649 transitions. [2024-11-16 08:36:21,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 08:36:21,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:21,755 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] [2024-11-16 08:36:21,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:36:21,755 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:21,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:21,755 INFO L85 PathProgramCache]: Analyzing trace with hash 299708480, now seen corresponding path program 1 times [2024-11-16 08:36:21,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:21,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723291133] [2024-11-16 08:36:21,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:21,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:22,019 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:36:22,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:22,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723291133] [2024-11-16 08:36:22,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723291133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:22,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:22,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:36:22,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602957724] [2024-11-16 08:36:22,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:22,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:36:22,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:22,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:36:22,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:22,022 INFO L87 Difference]: Start difference. First operand 48744 states and 69649 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 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 08:36:22,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:22,545 INFO L93 Difference]: Finished difference Result 118652 states and 170743 transitions. [2024-11-16 08:36:22,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:36:22,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 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 96 [2024-11-16 08:36:22,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:22,671 INFO L225 Difference]: With dead ends: 118652 [2024-11-16 08:36:22,671 INFO L226 Difference]: Without dead ends: 108698 [2024-11-16 08:36:22,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:36:22,679 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 1382 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:22,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 1440 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:36:22,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108698 states. [2024-11-16 08:36:23,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108698 to 58568. [2024-11-16 08:36:23,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58568 states, 58567 states have (on average 1.426895692113306) internal successors, (83569), 58567 states have internal predecessors, (83569), 0 states have call successors, (0), 0 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 08:36:23,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58568 states to 58568 states and 83569 transitions. [2024-11-16 08:36:23,709 INFO L78 Accepts]: Start accepts. Automaton has 58568 states and 83569 transitions. Word has length 96 [2024-11-16 08:36:23,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:23,709 INFO L471 AbstractCegarLoop]: Abstraction has 58568 states and 83569 transitions. [2024-11-16 08:36:23,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 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 08:36:23,710 INFO L276 IsEmpty]: Start isEmpty. Operand 58568 states and 83569 transitions. [2024-11-16 08:36:23,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 08:36:23,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:23,728 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] [2024-11-16 08:36:23,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:36:23,728 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:23,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:23,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1687827776, now seen corresponding path program 1 times [2024-11-16 08:36:23,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:23,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324834134] [2024-11-16 08:36:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:23,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:23,791 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 08:36:23,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:23,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324834134] [2024-11-16 08:36:23,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324834134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:23,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:23,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:23,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912863380] [2024-11-16 08:36:23,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:23,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:23,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:23,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:23,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:23,793 INFO L87 Difference]: Start difference. First operand 58568 states and 83569 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 08:36:24,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:24,139 INFO L93 Difference]: Finished difference Result 146332 states and 208019 transitions. [2024-11-16 08:36:24,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:24,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-16 08:36:24,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:24,260 INFO L225 Difference]: With dead ends: 146332 [2024-11-16 08:36:24,260 INFO L226 Difference]: Without dead ends: 96522 [2024-11-16 08:36:24,313 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 08:36:24,314 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 112 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:24,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 400 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:24,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96522 states. [2024-11-16 08:36:25,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96522 to 95632. [2024-11-16 08:36:25,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95632 states, 95631 states have (on average 1.4077548075414876) internal successors, (134625), 95631 states have internal predecessors, (134625), 0 states have call successors, (0), 0 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 08:36:25,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95632 states to 95632 states and 134625 transitions. [2024-11-16 08:36:25,586 INFO L78 Accepts]: Start accepts. Automaton has 95632 states and 134625 transitions. Word has length 96 [2024-11-16 08:36:25,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:25,586 INFO L471 AbstractCegarLoop]: Abstraction has 95632 states and 134625 transitions. [2024-11-16 08:36:25,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 08:36:25,587 INFO L276 IsEmpty]: Start isEmpty. Operand 95632 states and 134625 transitions. [2024-11-16 08:36:25,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 08:36:25,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:25,603 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] [2024-11-16 08:36:25,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:36:25,603 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:25,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:25,603 INFO L85 PathProgramCache]: Analyzing trace with hash 795388324, now seen corresponding path program 1 times [2024-11-16 08:36:25,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:25,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314061830] [2024-11-16 08:36:25,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:25,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-16 08:36:25,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:25,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314061830] [2024-11-16 08:36:25,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314061830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:25,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:25,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:36:25,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346332085] [2024-11-16 08:36:25,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:25,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:36:25,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:25,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:36:25,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:25,715 INFO L87 Difference]: Start difference. First operand 95632 states and 134625 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 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 08:36:26,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:26,542 INFO L93 Difference]: Finished difference Result 227884 states and 323683 transitions. [2024-11-16 08:36:26,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:36:26,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 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 96 [2024-11-16 08:36:26,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:26,795 INFO L225 Difference]: With dead ends: 227884 [2024-11-16 08:36:26,795 INFO L226 Difference]: Without dead ends: 199850 [2024-11-16 08:36:26,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:36:26,853 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 1388 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:26,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 1494 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:36:26,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199850 states. [2024-11-16 08:36:28,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199850 to 123280. [2024-11-16 08:36:28,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123280 states, 123279 states have (on average 1.4074173216849586) internal successors, (173505), 123279 states have internal predecessors, (173505), 0 states have call successors, (0), 0 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 08:36:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123280 states to 123280 states and 173505 transitions. [2024-11-16 08:36:28,949 INFO L78 Accepts]: Start accepts. Automaton has 123280 states and 173505 transitions. Word has length 96 [2024-11-16 08:36:28,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:28,949 INFO L471 AbstractCegarLoop]: Abstraction has 123280 states and 173505 transitions. [2024-11-16 08:36:28,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 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 08:36:28,949 INFO L276 IsEmpty]: Start isEmpty. Operand 123280 states and 173505 transitions. [2024-11-16 08:36:28,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 08:36:28,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:28,966 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] [2024-11-16 08:36:28,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:36:28,966 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:28,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:28,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1447182016, now seen corresponding path program 1 times [2024-11-16 08:36:28,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:28,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425418379] [2024-11-16 08:36:28,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:28,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 08:36:29,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:29,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425418379] [2024-11-16 08:36:29,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425418379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:29,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:29,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:36:29,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45107343] [2024-11-16 08:36:29,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:29,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:36:29,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:29,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:36:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:29,083 INFO L87 Difference]: Start difference. First operand 123280 states and 173505 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 08:36:30,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:30,048 INFO L93 Difference]: Finished difference Result 260708 states and 370051 transitions. [2024-11-16 08:36:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:36:30,049 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 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 96 [2024-11-16 08:36:30,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:30,341 INFO L225 Difference]: With dead ends: 260708 [2024-11-16 08:36:30,341 INFO L226 Difference]: Without dead ends: 227434 [2024-11-16 08:36:30,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:36:30,423 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 1402 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:30,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 1554 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:36:30,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227434 states. [2024-11-16 08:36:32,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227434 to 151576. [2024-11-16 08:36:32,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151576 states, 151575 states have (on average 1.40894606630381) internal successors, (213561), 151575 states have internal predecessors, (213561), 0 states have call successors, (0), 0 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 08:36:33,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151576 states to 151576 states and 213561 transitions. [2024-11-16 08:36:33,420 INFO L78 Accepts]: Start accepts. Automaton has 151576 states and 213561 transitions. Word has length 96 [2024-11-16 08:36:33,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:33,421 INFO L471 AbstractCegarLoop]: Abstraction has 151576 states and 213561 transitions. [2024-11-16 08:36:33,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 08:36:33,421 INFO L276 IsEmpty]: Start isEmpty. Operand 151576 states and 213561 transitions. [2024-11-16 08:36:33,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 08:36:33,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:33,440 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] [2024-11-16 08:36:33,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:36:33,440 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:33,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:33,441 INFO L85 PathProgramCache]: Analyzing trace with hash 683548068, now seen corresponding path program 1 times [2024-11-16 08:36:33,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:33,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716750093] [2024-11-16 08:36:33,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:33,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:33,603 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 08:36:33,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:33,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716750093] [2024-11-16 08:36:33,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716750093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:33,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:33,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:36:33,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397266859] [2024-11-16 08:36:33,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:33,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:36:33,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:33,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:36:33,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:33,605 INFO L87 Difference]: Start difference. First operand 151576 states and 213561 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 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 08:36:34,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:34,316 INFO L93 Difference]: Finished difference Result 296536 states and 420583 transitions. [2024-11-16 08:36:34,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:36:34,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 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 96 [2024-11-16 08:36:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:34,643 INFO L225 Difference]: With dead ends: 296536 [2024-11-16 08:36:34,643 INFO L226 Difference]: Without dead ends: 260218 [2024-11-16 08:36:34,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:36:34,738 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 1543 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:34,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 1522 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:36:34,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260218 states. [2024-11-16 08:36:37,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260218 to 177036. [2024-11-16 08:36:37,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177036 states, 177035 states have (on average 1.4100771033976331) internal successors, (249633), 177035 states have internal predecessors, (249633), 0 states have call successors, (0), 0 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 08:36:37,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177036 states to 177036 states and 249633 transitions. [2024-11-16 08:36:37,839 INFO L78 Accepts]: Start accepts. Automaton has 177036 states and 249633 transitions. Word has length 96 [2024-11-16 08:36:37,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:37,839 INFO L471 AbstractCegarLoop]: Abstraction has 177036 states and 249633 transitions. [2024-11-16 08:36:37,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 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 08:36:37,839 INFO L276 IsEmpty]: Start isEmpty. Operand 177036 states and 249633 transitions. [2024-11-16 08:36:37,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-16 08:36:37,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:37,859 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:36:37,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:36:37,859 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:37,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:37,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1447616926, now seen corresponding path program 1 times [2024-11-16 08:36:37,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:37,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570804725] [2024-11-16 08:36:37,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:37,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:38,171 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:38,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:38,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570804725] [2024-11-16 08:36:38,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570804725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:36:38,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235006061] [2024-11-16 08:36:38,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:38,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:36:38,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:36:38,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:36:38,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:36:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:38,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-16 08:36:38,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:36:38,936 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:38,936 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:36:39,440 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:39,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235006061] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:36:39,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:36:39,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 23 [2024-11-16 08:36:39,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49349567] [2024-11-16 08:36:39,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:36:39,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 08:36:39,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:39,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 08:36:39,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-16 08:36:39,443 INFO L87 Difference]: Start difference. First operand 177036 states and 249633 transitions. Second operand has 23 states, 23 states have (on average 12.173913043478262) internal successors, (280), 23 states have internal predecessors, (280), 0 states have call successors, (0), 0 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 08:36:49,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:49,261 INFO L93 Difference]: Finished difference Result 1330811 states and 1869893 transitions. [2024-11-16 08:36:49,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2024-11-16 08:36:49,261 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.173913043478262) internal successors, (280), 23 states have internal predecessors, (280), 0 states have call successors, (0), 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 97 [2024-11-16 08:36:49,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:51,631 INFO L225 Difference]: With dead ends: 1330811 [2024-11-16 08:36:51,631 INFO L226 Difference]: Without dead ends: 1153885 [2024-11-16 08:36:51,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8094 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=3569, Invalid=17023, Unknown=0, NotChecked=0, Total=20592 [2024-11-16 08:36:51,876 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 16682 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 2459 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16682 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 2675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 2459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:51,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16682 Valid, 2645 Invalid, 2675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 2459 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 08:36:52,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153885 states.