./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-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 0a42ac25ff9e63a0c1036bc9e6198406f6fa05f356e4b6e7ac8346847c92ee58 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 15:03:01,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 15:03:01,870 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 15:03:01,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 15:03:01,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 15:03:01,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 15:03:01,891 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 15:03:01,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 15:03:01,892 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 15:03:01,892 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 15:03:01,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 15:03:01,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 15:03:01,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 15:03:01,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 15:03:01,892 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 15:03:01,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 15:03:01,892 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 15:03:01,892 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 15:03:01,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 15:03:01,892 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 15:03:01,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 15:03:01,892 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 15:03:01,892 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 15:03:01,893 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 15:03:01,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 15:03:01,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 15:03:01,895 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 15:03:01,895 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 15:03:01,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 15:03:01,896 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /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 -> 0a42ac25ff9e63a0c1036bc9e6198406f6fa05f356e4b6e7ac8346847c92ee58 [2025-03-03 15:03:02,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 15:03:02,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 15:03:02,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 15:03:02,146 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 15:03:02,146 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 15:03:02,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-03-03 15:03:03,297 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c9231186/0c263f2fd7104bbab62bba8735b47a53/FLAGdc90caad7 [2025-03-03 15:03:03,639 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 15:03:03,641 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-03-03 15:03:03,658 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c9231186/0c263f2fd7104bbab62bba8735b47a53/FLAGdc90caad7 [2025-03-03 15:03:03,677 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c9231186/0c263f2fd7104bbab62bba8735b47a53 [2025-03-03 15:03:03,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 15:03:03,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 15:03:03,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 15:03:03,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 15:03:03,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 15:03:03,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 03:03:03" (1/1) ... [2025-03-03 15:03:03,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52f53cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:03, skipping insertion in model container [2025-03-03 15:03:03,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 03:03:03" (1/1) ... [2025-03-03 15:03:03,741 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 15:03:04,043 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[31925,31938] [2025-03-03 15:03:04,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 15:03:04,139 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 15:03:04,278 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[31925,31938] [2025-03-03 15:03:04,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 15:03:04,355 INFO L204 MainTranslator]: Completed translation [2025-03-03 15:03:04,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04 WrapperNode [2025-03-03 15:03:04,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 15:03:04,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 15:03:04,357 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 15:03:04,357 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 15:03:04,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,466 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2820 [2025-03-03 15:03:04,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 15:03:04,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 15:03:04,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 15:03:04,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 15:03:04,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,484 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,514 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]. [2025-03-03 15:03:04,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,544 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 15:03:04,580 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 15:03:04,580 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 15:03:04,580 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 15:03:04,581 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (1/1) ... [2025-03-03 15:03:04,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 15:03:04,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 15:03:04,610 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) [2025-03-03 15:03:04,613 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 [2025-03-03 15:03:04,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 15:03:04,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 15:03:04,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 15:03:04,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 15:03:04,759 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 15:03:04,760 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 15:03:06,373 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2085: havoc main_~check__tmp~6#1; [2025-03-03 15:03:06,374 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1889: havoc main_~__tmp_6~0#1, main_~assert__arg~5#1;havoc main_~check__tmp~5#1;havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~4#1;havoc main_~node4____CPAchecker_TMP_2~2#1;havoc main_~node4____CPAchecker_TMP_1~2#1;havoc main_~node4____CPAchecker_TMP_0~2#1;havoc main_~node3____CPAchecker_TMP_2~2#1;havoc main_~node3____CPAchecker_TMP_1~2#1;havoc main_~node3____CPAchecker_TMP_0~2#1;havoc main_~node2____CPAchecker_TMP_2~2#1;havoc main_~node2____CPAchecker_TMP_1~2#1;havoc main_~node2____CPAchecker_TMP_0~2#1;havoc main_~node1____CPAchecker_TMP_2~2#1;havoc main_~node1____CPAchecker_TMP_1~2#1;havoc main_~node1____CPAchecker_TMP_0~2#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1;havoc main_~node4____CPAchecker_TMP_2~1#1;havoc main_~node4____CPAchecker_TMP_1~1#1;havoc main_~node4____CPAchecker_TMP_0~1#1;havoc main_~node3____CPAchecker_TMP_2~1#1;havoc main_~node3____CPAchecker_TMP_1~1#1;havoc main_~node3____CPAchecker_TMP_0~1#1;havoc main_~node2____CPAchecker_TMP_2~1#1;havoc main_~node2____CPAchecker_TMP_1~1#1;havoc main_~node2____CPAchecker_TMP_0~1#1;havoc main_~node1____CPAchecker_TMP_2~1#1;havoc main_~node1____CPAchecker_TMP_1~1#1;havoc main_~node1____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1;havoc main_~node4____CPAchecker_TMP_2~0#1;havoc main_~node4____CPAchecker_TMP_1~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1;havoc main_~node3____CPAchecker_TMP_2~0#1;havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1;havoc main_~node2____CPAchecker_TMP_2~0#1;havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1;havoc main_~node1____CPAchecker_TMP_2~0#1;havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r141~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r241~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r341~0#1, main_~init__r411~0#1, main_~init__r421~0#1, main_~init__r431~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r142~0#1, main_~init__tmp___1~0#1, main_~init__r212~0#1, main_~init__tmp___2~0#1, main_~init__r232~0#1, main_~init__tmp___3~0#1, main_~init__r242~0#1, main_~init__tmp___4~0#1, main_~init__r312~0#1, main_~init__tmp___5~0#1, main_~init__r322~0#1, main_~init__tmp___6~0#1, main_~init__r342~0#1, main_~init__tmp___7~0#1, main_~init__r412~0#1, main_~init__tmp___8~0#1, main_~init__r422~0#1, main_~init__tmp___9~0#1, main_~init__r432~0#1, main_~init__tmp___10~0#1, main_~init__r123~0#1, main_~init__tmp___11~0#1, main_~init__r133~0#1, main_~init__tmp___12~0#1, main_~init__r143~0#1, main_~init__tmp___13~0#1, main_~init__r213~0#1, main_~init__tmp___14~0#1, main_~init__r233~0#1, main_~init__tmp___15~0#1, main_~init__r243~0#1, main_~init__tmp___16~0#1, main_~init__r313~0#1, main_~init__tmp___17~0#1, main_~init__r323~0#1, main_~init__tmp___18~0#1, main_~init__r343~0#1, main_~init__tmp___19~0#1, main_~init__r413~0#1, main_~init__tmp___20~0#1, main_~init__r423~0#1, main_~init__tmp___21~0#1, main_~init__r433~0#1, main_~init__tmp___22~0#1, main_~init__tmp___23~0#1; [2025-03-03 15:03:06,374 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2423: havoc main_~node3____CPAchecker_TMP_2~3#1;havoc main_~node3____CPAchecker_TMP_1~3#1;havoc main_~node3____CPAchecker_TMP_0~3#1; [2025-03-03 15:03:06,374 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2567: havoc main_~node2____CPAchecker_TMP_2~3#1;havoc main_~node2____CPAchecker_TMP_1~3#1;havoc main_~node2____CPAchecker_TMP_0~3#1; [2025-03-03 15:03:06,374 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2711: havoc main_~node1____CPAchecker_TMP_2~3#1;havoc main_~node1____CPAchecker_TMP_1~3#1;havoc main_~node1____CPAchecker_TMP_0~3#1; [2025-03-03 15:03:06,374 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2279: havoc main_~node4____CPAchecker_TMP_2~3#1;havoc main_~node4____CPAchecker_TMP_1~3#1;havoc main_~node4____CPAchecker_TMP_0~3#1; [2025-03-03 15:03:06,570 INFO L? ?]: Removed 181 outVars from TransFormulas that were not future-live. [2025-03-03 15:03:06,570 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 15:03:06,601 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 15:03:06,605 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 15:03:06,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 03:03:06 BoogieIcfgContainer [2025-03-03 15:03:06,605 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 15:03:06,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 15:03:06,607 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 15:03:06,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 15:03:06,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 03:03:03" (1/3) ... [2025-03-03 15:03:06,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411718df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 03:03:06, skipping insertion in model container [2025-03-03 15:03:06,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:03:04" (2/3) ... [2025-03-03 15:03:06,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411718df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 03:03:06, skipping insertion in model container [2025-03-03 15:03:06,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 03:03:06" (3/3) ... [2025-03-03 15:03:06,612 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-03-03 15:03:06,622 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 15:03:06,624 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 732 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-03 15:03:06,689 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 15:03:06,698 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;@17e3f4fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 15:03:06,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 15:03:06,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 732 states, 730 states have (on average 1.7863013698630137) internal successors, (1304), 731 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:06,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2025-03-03 15:03:06,726 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:06,726 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:06,727 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:06,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:06,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1936495814, now seen corresponding path program 1 times [2025-03-03 15:03:06,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:06,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951366532] [2025-03-03 15:03:06,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:06,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:06,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 310 statements into 1 equivalence classes. [2025-03-03 15:03:07,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 310 of 310 statements. [2025-03-03 15:03:07,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:07,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:08,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:08,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:08,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951366532] [2025-03-03 15:03:08,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951366532] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:08,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:08,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:03:08,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395088781] [2025-03-03 15:03:08,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:08,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:03:08,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:08,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:03:08,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:08,293 INFO L87 Difference]: Start difference. First operand has 732 states, 730 states have (on average 1.7863013698630137) internal successors, (1304), 731 states have internal predecessors, (1304), 0 states have call successors, (0), 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 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:08,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:08,558 INFO L93 Difference]: Finished difference Result 2811 states and 5016 transitions. [2025-03-03 15:03:08,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:03:08,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 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 310 [2025-03-03 15:03:08,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:08,584 INFO L225 Difference]: With dead ends: 2811 [2025-03-03 15:03:08,584 INFO L226 Difference]: Without dead ends: 2119 [2025-03-03 15:03:08,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:08,594 INFO L435 NwaCegarLoop]: 2174 mSDtfsCounter, 2719 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 4619 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:08,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2719 Valid, 4619 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 15:03:08,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2025-03-03 15:03:08,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1427. [2025-03-03 15:03:08,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1426 states have (on average 1.5448807854137447) internal successors, (2203), 1426 states have internal predecessors, (2203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 2203 transitions. [2025-03-03 15:03:08,728 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 2203 transitions. Word has length 310 [2025-03-03 15:03:08,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:08,730 INFO L471 AbstractCegarLoop]: Abstraction has 1427 states and 2203 transitions. [2025-03-03 15:03:08,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 2203 transitions. [2025-03-03 15:03:08,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2025-03-03 15:03:08,737 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:08,737 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:08,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 15:03:08,738 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:08,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:08,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1480716130, now seen corresponding path program 1 times [2025-03-03 15:03:08,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:08,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883466785] [2025-03-03 15:03:08,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:08,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:08,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 312 statements into 1 equivalence classes. [2025-03-03 15:03:08,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 312 of 312 statements. [2025-03-03 15:03:08,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:08,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:08,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:08,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:08,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883466785] [2025-03-03 15:03:08,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883466785] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:08,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:08,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:08,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601454914] [2025-03-03 15:03:08,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:08,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:08,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:08,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:08,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:08,940 INFO L87 Difference]: Start difference. First operand 1427 states and 2203 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:09,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:09,019 INFO L93 Difference]: Finished difference Result 4106 states and 6302 transitions. [2025-03-03 15:03:09,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:09,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 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 312 [2025-03-03 15:03:09,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:09,029 INFO L225 Difference]: With dead ends: 4106 [2025-03-03 15:03:09,030 INFO L226 Difference]: Without dead ends: 2804 [2025-03-03 15:03:09,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:09,034 INFO L435 NwaCegarLoop]: 2138 mSDtfsCounter, 994 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 3212 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:09,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 3212 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:09,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2025-03-03 15:03:09,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2802. [2025-03-03 15:03:09,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 2801 states have (on average 1.5358800428418422) internal successors, (4302), 2801 states have internal predecessors, (4302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:09,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 4302 transitions. [2025-03-03 15:03:09,138 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 4302 transitions. Word has length 312 [2025-03-03 15:03:09,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:09,139 INFO L471 AbstractCegarLoop]: Abstraction has 2802 states and 4302 transitions. [2025-03-03 15:03:09,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:09,140 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 4302 transitions. [2025-03-03 15:03:09,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2025-03-03 15:03:09,149 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:09,149 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:09,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 15:03:09,150 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:09,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash -459088099, now seen corresponding path program 1 times [2025-03-03 15:03:09,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:09,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795849129] [2025-03-03 15:03:09,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:09,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:09,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 312 statements into 1 equivalence classes. [2025-03-03 15:03:09,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 312 of 312 statements. [2025-03-03 15:03:09,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:09,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:09,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:09,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:09,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795849129] [2025-03-03 15:03:09,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795849129] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:09,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:09,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:09,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261333120] [2025-03-03 15:03:09,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:09,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:09,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:09,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:09,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:09,313 INFO L87 Difference]: Start difference. First operand 2802 states and 4302 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:09,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:09,390 INFO L93 Difference]: Finished difference Result 8339 states and 12785 transitions. [2025-03-03 15:03:09,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:09,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 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 312 [2025-03-03 15:03:09,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:09,411 INFO L225 Difference]: With dead ends: 8339 [2025-03-03 15:03:09,411 INFO L226 Difference]: Without dead ends: 5575 [2025-03-03 15:03:09,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:09,418 INFO L435 NwaCegarLoop]: 2238 mSDtfsCounter, 1116 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:09,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 3355 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:09,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2025-03-03 15:03:09,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 2821. [2025-03-03 15:03:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2820 states have (on average 1.5358156028368795) internal successors, (4331), 2820 states have internal predecessors, (4331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:09,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 4331 transitions. [2025-03-03 15:03:09,503 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 4331 transitions. Word has length 312 [2025-03-03 15:03:09,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:09,503 INFO L471 AbstractCegarLoop]: Abstraction has 2821 states and 4331 transitions. [2025-03-03 15:03:09,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:09,503 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 4331 transitions. [2025-03-03 15:03:09,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2025-03-03 15:03:09,508 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:09,509 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:09,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 15:03:09,509 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:09,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:09,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1017069539, now seen corresponding path program 1 times [2025-03-03 15:03:09,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:09,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970913255] [2025-03-03 15:03:09,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:09,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:09,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 313 statements into 1 equivalence classes. [2025-03-03 15:03:09,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 313 of 313 statements. [2025-03-03 15:03:09,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:09,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:09,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:09,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:09,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970913255] [2025-03-03 15:03:09,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970913255] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:09,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:09,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:09,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583305639] [2025-03-03 15:03:09,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:09,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:09,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:09,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:09,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:09,682 INFO L87 Difference]: Start difference. First operand 2821 states and 4331 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:09,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:09,723 INFO L93 Difference]: Finished difference Result 5604 states and 8592 transitions. [2025-03-03 15:03:09,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:09,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 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 313 [2025-03-03 15:03:09,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:09,733 INFO L225 Difference]: With dead ends: 5604 [2025-03-03 15:03:09,733 INFO L226 Difference]: Without dead ends: 2839 [2025-03-03 15:03:09,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:09,737 INFO L435 NwaCegarLoop]: 1140 mSDtfsCounter, 5 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:09,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2265 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:09,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2025-03-03 15:03:09,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2839. [2025-03-03 15:03:09,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2839 states, 2838 states have (on average 1.533474277660324) internal successors, (4352), 2838 states have internal predecessors, (4352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:09,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2839 states to 2839 states and 4352 transitions. [2025-03-03 15:03:09,789 INFO L78 Accepts]: Start accepts. Automaton has 2839 states and 4352 transitions. Word has length 313 [2025-03-03 15:03:09,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:09,790 INFO L471 AbstractCegarLoop]: Abstraction has 2839 states and 4352 transitions. [2025-03-03 15:03:09,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:09,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2839 states and 4352 transitions. [2025-03-03 15:03:09,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2025-03-03 15:03:09,796 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:09,796 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:09,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 15:03:09,797 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:09,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:09,797 INFO L85 PathProgramCache]: Analyzing trace with hash -957015169, now seen corresponding path program 1 times [2025-03-03 15:03:09,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:09,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910837506] [2025-03-03 15:03:09,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:09,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:09,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 314 statements into 1 equivalence classes. [2025-03-03 15:03:09,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 314 of 314 statements. [2025-03-03 15:03:09,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:09,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:10,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:10,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:10,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910837506] [2025-03-03 15:03:10,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910837506] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:10,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:10,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:10,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206754729] [2025-03-03 15:03:10,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:10,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:10,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:10,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:10,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:10,028 INFO L87 Difference]: Start difference. First operand 2839 states and 4352 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:10,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:10,113 INFO L93 Difference]: Finished difference Result 8082 states and 12314 transitions. [2025-03-03 15:03:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:10,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 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 314 [2025-03-03 15:03:10,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:10,129 INFO L225 Difference]: With dead ends: 8082 [2025-03-03 15:03:10,130 INFO L226 Difference]: Without dead ends: 5484 [2025-03-03 15:03:10,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:10,135 INFO L435 NwaCegarLoop]: 2198 mSDtfsCounter, 987 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 3272 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:10,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 3272 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:10,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5484 states. [2025-03-03 15:03:10,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5484 to 5482. [2025-03-03 15:03:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5482 states, 5481 states have (on average 1.5210727969348659) internal successors, (8337), 5481 states have internal predecessors, (8337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:10,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5482 states to 5482 states and 8337 transitions. [2025-03-03 15:03:10,237 INFO L78 Accepts]: Start accepts. Automaton has 5482 states and 8337 transitions. Word has length 314 [2025-03-03 15:03:10,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:10,238 INFO L471 AbstractCegarLoop]: Abstraction has 5482 states and 8337 transitions. [2025-03-03 15:03:10,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 5482 states and 8337 transitions. [2025-03-03 15:03:10,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2025-03-03 15:03:10,246 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:10,247 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:10,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 15:03:10,247 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:10,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash 563253309, now seen corresponding path program 1 times [2025-03-03 15:03:10,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:10,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440828791] [2025-03-03 15:03:10,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:10,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:10,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 314 statements into 1 equivalence classes. [2025-03-03 15:03:10,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 314 of 314 statements. [2025-03-03 15:03:10,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:10,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:11,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:11,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:11,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440828791] [2025-03-03 15:03:11,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440828791] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:11,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:11,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:03:11,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519342118] [2025-03-03 15:03:11,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:11,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:03:11,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:11,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:03:11,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:11,025 INFO L87 Difference]: Start difference. First operand 5482 states and 8337 transitions. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:11,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:11,142 INFO L93 Difference]: Finished difference Result 15513 states and 23376 transitions. [2025-03-03 15:03:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:03:11,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 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 314 [2025-03-03 15:03:11,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:11,186 INFO L225 Difference]: With dead ends: 15513 [2025-03-03 15:03:11,186 INFO L226 Difference]: Without dead ends: 10567 [2025-03-03 15:03:11,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:11,197 INFO L435 NwaCegarLoop]: 1615 mSDtfsCounter, 1085 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 4347 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:11,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 4347 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:11,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10567 states. [2025-03-03 15:03:11,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10567 to 5717. [2025-03-03 15:03:11,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5717 states, 5716 states have (on average 1.526592022393282) internal successors, (8726), 5716 states have internal predecessors, (8726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:11,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5717 states to 5717 states and 8726 transitions. [2025-03-03 15:03:11,376 INFO L78 Accepts]: Start accepts. Automaton has 5717 states and 8726 transitions. Word has length 314 [2025-03-03 15:03:11,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:11,378 INFO L471 AbstractCegarLoop]: Abstraction has 5717 states and 8726 transitions. [2025-03-03 15:03:11,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:11,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5717 states and 8726 transitions. [2025-03-03 15:03:11,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2025-03-03 15:03:11,392 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:11,392 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:11,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 15:03:11,393 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:11,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:11,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1169778900, now seen corresponding path program 1 times [2025-03-03 15:03:11,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:11,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814157345] [2025-03-03 15:03:11,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:11,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:11,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 316 statements into 1 equivalence classes. [2025-03-03 15:03:11,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 316 of 316 statements. [2025-03-03 15:03:11,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:11,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:11,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:11,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:11,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814157345] [2025-03-03 15:03:11,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814157345] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:11,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:11,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:11,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389236918] [2025-03-03 15:03:11,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:11,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:11,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:11,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:11,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:11,520 INFO L87 Difference]: Start difference. First operand 5717 states and 8726 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:11,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:11,597 INFO L93 Difference]: Finished difference Result 15589 states and 23455 transitions. [2025-03-03 15:03:11,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:11,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 316 [2025-03-03 15:03:11,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:11,617 INFO L225 Difference]: With dead ends: 15589 [2025-03-03 15:03:11,618 INFO L226 Difference]: Without dead ends: 10671 [2025-03-03 15:03:11,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:11,628 INFO L435 NwaCegarLoop]: 2106 mSDtfsCounter, 984 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 3222 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 [2025-03-03 15:03:11,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 3222 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:11,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10671 states. [2025-03-03 15:03:11,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10671 to 5821. [2025-03-03 15:03:11,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5821 states, 5820 states have (on average 1.5238831615120274) internal successors, (8869), 5820 states have internal predecessors, (8869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:11,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5821 states to 5821 states and 8869 transitions. [2025-03-03 15:03:11,789 INFO L78 Accepts]: Start accepts. Automaton has 5821 states and 8869 transitions. Word has length 316 [2025-03-03 15:03:11,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:11,789 INFO L471 AbstractCegarLoop]: Abstraction has 5821 states and 8869 transitions. [2025-03-03 15:03:11,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5821 states and 8869 transitions. [2025-03-03 15:03:11,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2025-03-03 15:03:11,799 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:11,799 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:11,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 15:03:11,799 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:11,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:11,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1938202908, now seen corresponding path program 1 times [2025-03-03 15:03:11,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:11,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388321396] [2025-03-03 15:03:11,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:11,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:11,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 317 statements into 1 equivalence classes. [2025-03-03 15:03:11,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 317 of 317 statements. [2025-03-03 15:03:11,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:11,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:11,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:11,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:11,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388321396] [2025-03-03 15:03:11,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388321396] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:11,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:11,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:11,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312773508] [2025-03-03 15:03:11,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:11,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:11,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:11,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:11,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:11,906 INFO L87 Difference]: Start difference. First operand 5821 states and 8869 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:11,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:11,959 INFO L93 Difference]: Finished difference Result 10871 states and 16396 transitions. [2025-03-03 15:03:11,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:11,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 317 [2025-03-03 15:03:11,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:11,970 INFO L225 Difference]: With dead ends: 10871 [2025-03-03 15:03:11,970 INFO L226 Difference]: Without dead ends: 5946 [2025-03-03 15:03:11,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:11,978 INFO L435 NwaCegarLoop]: 1140 mSDtfsCounter, 5 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2264 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 [2025-03-03 15:03:11,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2264 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:11,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5946 states. [2025-03-03 15:03:12,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5946 to 5946. [2025-03-03 15:03:12,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5945 states have (on average 1.5164003364171572) internal successors, (9015), 5945 states have internal predecessors, (9015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:12,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 9015 transitions. [2025-03-03 15:03:12,071 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 9015 transitions. Word has length 317 [2025-03-03 15:03:12,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:12,071 INFO L471 AbstractCegarLoop]: Abstraction has 5946 states and 9015 transitions. [2025-03-03 15:03:12,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:12,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 9015 transitions. [2025-03-03 15:03:12,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2025-03-03 15:03:12,081 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:12,081 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:12,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 15:03:12,082 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:12,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:12,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2074534708, now seen corresponding path program 1 times [2025-03-03 15:03:12,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:12,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960050415] [2025-03-03 15:03:12,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:12,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:12,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 318 statements into 1 equivalence classes. [2025-03-03 15:03:12,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 318 of 318 statements. [2025-03-03 15:03:12,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:12,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:12,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:12,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960050415] [2025-03-03 15:03:12,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960050415] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:12,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:12,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:03:12,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932219320] [2025-03-03 15:03:12,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:12,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:03:12,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:12,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:03:12,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:12,687 INFO L87 Difference]: Start difference. First operand 5946 states and 9015 transitions. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:12,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:12,729 INFO L93 Difference]: Finished difference Result 10319 states and 15519 transitions. [2025-03-03 15:03:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:03:12,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 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 318 [2025-03-03 15:03:12,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:12,739 INFO L225 Difference]: With dead ends: 10319 [2025-03-03 15:03:12,739 INFO L226 Difference]: Without dead ends: 5232 [2025-03-03 15:03:12,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:12,748 INFO L435 NwaCegarLoop]: 1267 mSDtfsCounter, 99 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:12,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 3656 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:12,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5232 states. [2025-03-03 15:03:12,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5232 to 5212. [2025-03-03 15:03:12,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5212 states, 5211 states have (on average 1.5204375359815774) internal successors, (7923), 5211 states have internal predecessors, (7923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:12,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 5212 states and 7923 transitions. [2025-03-03 15:03:12,824 INFO L78 Accepts]: Start accepts. Automaton has 5212 states and 7923 transitions. Word has length 318 [2025-03-03 15:03:12,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:12,824 INFO L471 AbstractCegarLoop]: Abstraction has 5212 states and 7923 transitions. [2025-03-03 15:03:12,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:12,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states and 7923 transitions. [2025-03-03 15:03:12,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2025-03-03 15:03:12,832 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:12,832 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:12,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 15:03:12,832 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:12,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:12,834 INFO L85 PathProgramCache]: Analyzing trace with hash 569171270, now seen corresponding path program 1 times [2025-03-03 15:03:12,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:12,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470032381] [2025-03-03 15:03:12,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:12,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:12,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 322 statements into 1 equivalence classes. [2025-03-03 15:03:12,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 322 of 322 statements. [2025-03-03 15:03:12,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:12,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:14,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:14,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:14,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470032381] [2025-03-03 15:03:14,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470032381] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:14,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:14,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-03 15:03:14,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296865309] [2025-03-03 15:03:14,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:14,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-03 15:03:14,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:14,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-03 15:03:14,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-03 15:03:14,066 INFO L87 Difference]: Start difference. First operand 5212 states and 7923 transitions. Second operand has 10 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:14,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:14,581 INFO L93 Difference]: Finished difference Result 14391 states and 22016 transitions. [2025-03-03 15:03:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 15:03:14,582 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 0 states have call successors, (0), 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 322 [2025-03-03 15:03:14,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:14,603 INFO L225 Difference]: With dead ends: 14391 [2025-03-03 15:03:14,603 INFO L226 Difference]: Without dead ends: 13251 [2025-03-03 15:03:14,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-03 15:03:14,610 INFO L435 NwaCegarLoop]: 1241 mSDtfsCounter, 5508 mSDsluCounter, 8094 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5508 SdHoareTripleChecker+Valid, 9335 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:14,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5508 Valid, 9335 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 15:03:14,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13251 states. [2025-03-03 15:03:14,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13251 to 8151. [2025-03-03 15:03:14,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8151 states, 8150 states have (on average 1.516196319018405) internal successors, (12357), 8150 states have internal predecessors, (12357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8151 states to 8151 states and 12357 transitions. [2025-03-03 15:03:14,774 INFO L78 Accepts]: Start accepts. Automaton has 8151 states and 12357 transitions. Word has length 322 [2025-03-03 15:03:14,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:14,774 INFO L471 AbstractCegarLoop]: Abstraction has 8151 states and 12357 transitions. [2025-03-03 15:03:14,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:14,775 INFO L276 IsEmpty]: Start isEmpty. Operand 8151 states and 12357 transitions. [2025-03-03 15:03:14,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2025-03-03 15:03:14,786 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:14,786 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:14,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 15:03:14,786 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:14,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:14,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1236267064, now seen corresponding path program 1 times [2025-03-03 15:03:14,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:14,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72922823] [2025-03-03 15:03:14,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:14,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:14,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 322 statements into 1 equivalence classes. [2025-03-03 15:03:14,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 322 of 322 statements. [2025-03-03 15:03:14,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:14,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:16,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:16,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:16,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72922823] [2025-03-03 15:03:16,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72922823] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:16,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:16,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-03 15:03:16,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847914552] [2025-03-03 15:03:16,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:16,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-03 15:03:16,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:16,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-03 15:03:16,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2025-03-03 15:03:16,566 INFO L87 Difference]: Start difference. First operand 8151 states and 12357 transitions. Second operand has 17 states, 17 states have (on average 18.941176470588236) internal successors, (322), 17 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:18,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:18,278 INFO L93 Difference]: Finished difference Result 17974 states and 27621 transitions. [2025-03-03 15:03:18,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-03 15:03:18,279 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 18.941176470588236) internal successors, (322), 17 states have internal predecessors, (322), 0 states have call successors, (0), 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 322 [2025-03-03 15:03:18,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:18,307 INFO L225 Difference]: With dead ends: 17974 [2025-03-03 15:03:18,307 INFO L226 Difference]: Without dead ends: 17296 [2025-03-03 15:03:18,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=394, Invalid=1012, Unknown=0, NotChecked=0, Total=1406 [2025-03-03 15:03:18,315 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 10517 mSDsluCounter, 14503 mSDsCounter, 0 mSdLazyCounter, 2173 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10517 SdHoareTripleChecker+Valid, 16172 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:18,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10517 Valid, 16172 Invalid, 2297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2173 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-03 15:03:18,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17296 states. [2025-03-03 15:03:18,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17296 to 10755. [2025-03-03 15:03:18,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10755 states, 10754 states have (on average 1.5180397991445043) internal successors, (16325), 10754 states have internal predecessors, (16325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:18,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10755 states to 10755 states and 16325 transitions. [2025-03-03 15:03:18,506 INFO L78 Accepts]: Start accepts. Automaton has 10755 states and 16325 transitions. Word has length 322 [2025-03-03 15:03:18,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:18,508 INFO L471 AbstractCegarLoop]: Abstraction has 10755 states and 16325 transitions. [2025-03-03 15:03:18,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 18.941176470588236) internal successors, (322), 17 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:18,508 INFO L276 IsEmpty]: Start isEmpty. Operand 10755 states and 16325 transitions. [2025-03-03 15:03:18,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2025-03-03 15:03:18,520 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:18,520 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:18,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 15:03:18,520 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:18,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:18,521 INFO L85 PathProgramCache]: Analyzing trace with hash 686960970, now seen corresponding path program 1 times [2025-03-03 15:03:18,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:18,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983789991] [2025-03-03 15:03:18,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:18,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:18,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 322 statements into 1 equivalence classes. [2025-03-03 15:03:18,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 322 of 322 statements. [2025-03-03 15:03:18,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:18,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:19,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:19,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983789991] [2025-03-03 15:03:19,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983789991] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:19,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:19,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-03 15:03:19,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824707731] [2025-03-03 15:03:19,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:19,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-03 15:03:19,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:19,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-03 15:03:19,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-03 15:03:19,581 INFO L87 Difference]: Start difference. First operand 10755 states and 16325 transitions. Second operand has 13 states, 13 states have (on average 24.76923076923077) internal successors, (322), 13 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:20,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:20,657 INFO L93 Difference]: Finished difference Result 12580 states and 19056 transitions. [2025-03-03 15:03:20,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-03 15:03:20,657 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 24.76923076923077) internal successors, (322), 13 states have internal predecessors, (322), 0 states have call successors, (0), 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 322 [2025-03-03 15:03:20,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:20,676 INFO L225 Difference]: With dead ends: 12580 [2025-03-03 15:03:20,676 INFO L226 Difference]: Without dead ends: 10826 [2025-03-03 15:03:20,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2025-03-03 15:03:20,683 INFO L435 NwaCegarLoop]: 1170 mSDtfsCounter, 5978 mSDsluCounter, 9413 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5978 SdHoareTripleChecker+Valid, 10583 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:20,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5978 Valid, 10583 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-03 15:03:20,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10826 states. [2025-03-03 15:03:20,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10826 to 9003. [2025-03-03 15:03:20,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9003 states, 9002 states have (on average 1.506887358364808) internal successors, (13565), 9002 states have internal predecessors, (13565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:20,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9003 states to 9003 states and 13565 transitions. [2025-03-03 15:03:20,799 INFO L78 Accepts]: Start accepts. Automaton has 9003 states and 13565 transitions. Word has length 322 [2025-03-03 15:03:20,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:20,799 INFO L471 AbstractCegarLoop]: Abstraction has 9003 states and 13565 transitions. [2025-03-03 15:03:20,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 24.76923076923077) internal successors, (322), 13 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:20,800 INFO L276 IsEmpty]: Start isEmpty. Operand 9003 states and 13565 transitions. [2025-03-03 15:03:20,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2025-03-03 15:03:20,811 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:20,811 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:20,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 15:03:20,811 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:20,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:20,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1117825590, now seen corresponding path program 1 times [2025-03-03 15:03:20,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:20,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111797598] [2025-03-03 15:03:20,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:20,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:20,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 322 statements into 1 equivalence classes. [2025-03-03 15:03:20,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 322 of 322 statements. [2025-03-03 15:03:20,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:20,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:21,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:21,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:21,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111797598] [2025-03-03 15:03:21,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111797598] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:21,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:21,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-03 15:03:21,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493733907] [2025-03-03 15:03:21,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:21,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-03 15:03:21,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:21,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-03 15:03:21,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-03 15:03:21,841 INFO L87 Difference]: Start difference. First operand 9003 states and 13565 transitions. Second operand has 13 states, 13 states have (on average 24.76923076923077) internal successors, (322), 13 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:23,000 INFO L93 Difference]: Finished difference Result 11904 states and 17976 transitions. [2025-03-03 15:03:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-03 15:03:23,001 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 24.76923076923077) internal successors, (322), 13 states have internal predecessors, (322), 0 states have call successors, (0), 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 322 [2025-03-03 15:03:23,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:23,019 INFO L225 Difference]: With dead ends: 11904 [2025-03-03 15:03:23,019 INFO L226 Difference]: Without dead ends: 11226 [2025-03-03 15:03:23,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2025-03-03 15:03:23,025 INFO L435 NwaCegarLoop]: 1170 mSDtfsCounter, 5919 mSDsluCounter, 9993 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5919 SdHoareTripleChecker+Valid, 11163 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:23,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5919 Valid, 11163 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-03 15:03:23,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2025-03-03 15:03:23,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 9903. [2025-03-03 15:03:23,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9903 states, 9902 states have (on average 1.4987881236113916) internal successors, (14841), 9902 states have internal predecessors, (14841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:23,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9903 states to 9903 states and 14841 transitions. [2025-03-03 15:03:23,134 INFO L78 Accepts]: Start accepts. Automaton has 9903 states and 14841 transitions. Word has length 322 [2025-03-03 15:03:23,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:23,134 INFO L471 AbstractCegarLoop]: Abstraction has 9903 states and 14841 transitions. [2025-03-03 15:03:23,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 24.76923076923077) internal successors, (322), 13 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:23,135 INFO L276 IsEmpty]: Start isEmpty. Operand 9903 states and 14841 transitions. [2025-03-03 15:03:23,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2025-03-03 15:03:23,149 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:23,150 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:23,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 15:03:23,150 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:23,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:23,151 INFO L85 PathProgramCache]: Analyzing trace with hash 805402444, now seen corresponding path program 1 times [2025-03-03 15:03:23,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:23,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488329791] [2025-03-03 15:03:23,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:23,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:23,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 322 statements into 1 equivalence classes. [2025-03-03 15:03:23,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 322 of 322 statements. [2025-03-03 15:03:23,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:23,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:23,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:23,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488329791] [2025-03-03 15:03:23,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488329791] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:23,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:23,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:03:23,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240461922] [2025-03-03 15:03:23,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:23,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:03:23,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:23,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:03:23,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:23,509 INFO L87 Difference]: Start difference. First operand 9903 states and 14841 transitions. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:23,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:23,699 INFO L93 Difference]: Finished difference Result 38233 states and 57083 transitions. [2025-03-03 15:03:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:03:23,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 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 322 [2025-03-03 15:03:23,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:23,734 INFO L225 Difference]: With dead ends: 38233 [2025-03-03 15:03:23,734 INFO L226 Difference]: Without dead ends: 28529 [2025-03-03 15:03:23,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:23,751 INFO L435 NwaCegarLoop]: 1827 mSDtfsCounter, 2084 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 3931 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:23,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2084 Valid, 3931 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:03:23,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28529 states. [2025-03-03 15:03:23,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28529 to 19235. [2025-03-03 15:03:23,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19235 states, 19234 states have (on average 1.4857024019964646) internal successors, (28576), 19234 states have internal predecessors, (28576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:23,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19235 states to 19235 states and 28576 transitions. [2025-03-03 15:03:23,988 INFO L78 Accepts]: Start accepts. Automaton has 19235 states and 28576 transitions. Word has length 322 [2025-03-03 15:03:23,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:23,988 INFO L471 AbstractCegarLoop]: Abstraction has 19235 states and 28576 transitions. [2025-03-03 15:03:23,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:23,989 INFO L276 IsEmpty]: Start isEmpty. Operand 19235 states and 28576 transitions. [2025-03-03 15:03:24,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2025-03-03 15:03:24,005 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:24,005 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:24,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 15:03:24,006 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:24,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:24,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1362656984, now seen corresponding path program 1 times [2025-03-03 15:03:24,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:24,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780262695] [2025-03-03 15:03:24,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:24,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:24,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 324 statements into 1 equivalence classes. [2025-03-03 15:03:24,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 324 of 324 statements. [2025-03-03 15:03:24,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:24,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:24,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:24,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:24,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780262695] [2025-03-03 15:03:24,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780262695] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:24,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:24,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:24,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168856164] [2025-03-03 15:03:24,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:24,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:24,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:24,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:24,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:24,112 INFO L87 Difference]: Start difference. First operand 19235 states and 28576 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:24,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:24,256 INFO L93 Difference]: Finished difference Result 55230 states and 81562 transitions. [2025-03-03 15:03:24,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:24,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 324 [2025-03-03 15:03:24,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:24,309 INFO L225 Difference]: With dead ends: 55230 [2025-03-03 15:03:24,309 INFO L226 Difference]: Without dead ends: 37301 [2025-03-03 15:03:24,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:24,338 INFO L435 NwaCegarLoop]: 2173 mSDtfsCounter, 980 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:24,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 3245 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:24,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37301 states. [2025-03-03 15:03:24,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37301 to 37299. [2025-03-03 15:03:24,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37299 states, 37298 states have (on average 1.4719824119255724) internal successors, (54902), 37298 states have internal predecessors, (54902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:24,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37299 states to 37299 states and 54902 transitions. [2025-03-03 15:03:24,890 INFO L78 Accepts]: Start accepts. Automaton has 37299 states and 54902 transitions. Word has length 324 [2025-03-03 15:03:24,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:24,890 INFO L471 AbstractCegarLoop]: Abstraction has 37299 states and 54902 transitions. [2025-03-03 15:03:24,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:24,890 INFO L276 IsEmpty]: Start isEmpty. Operand 37299 states and 54902 transitions. [2025-03-03 15:03:24,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2025-03-03 15:03:24,916 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:24,916 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:24,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-03 15:03:24,916 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:24,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:24,917 INFO L85 PathProgramCache]: Analyzing trace with hash 602802973, now seen corresponding path program 1 times [2025-03-03 15:03:24,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:24,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346893099] [2025-03-03 15:03:24,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:24,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:24,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 325 statements into 1 equivalence classes. [2025-03-03 15:03:24,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 325 of 325 statements. [2025-03-03 15:03:24,940 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:24,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:24,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:24,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346893099] [2025-03-03 15:03:24,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346893099] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:24,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:24,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:24,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662141365] [2025-03-03 15:03:24,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:24,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:24,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:24,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:24,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:24,997 INFO L87 Difference]: Start difference. First operand 37299 states and 54902 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:25,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:25,138 INFO L93 Difference]: Finished difference Result 86181 states and 126403 transitions. [2025-03-03 15:03:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:25,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 325 [2025-03-03 15:03:25,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:25,213 INFO L225 Difference]: With dead ends: 86181 [2025-03-03 15:03:25,214 INFO L226 Difference]: Without dead ends: 61729 [2025-03-03 15:03:25,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:25,252 INFO L435 NwaCegarLoop]: 1407 mSDtfsCounter, 1095 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:25,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 2528 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:25,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61729 states. [2025-03-03 15:03:25,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61729 to 37299. [2025-03-03 15:03:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37299 states, 37298 states have (on average 1.4716070566786423) internal successors, (54888), 37298 states have internal predecessors, (54888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:25,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37299 states to 37299 states and 54888 transitions. [2025-03-03 15:03:25,775 INFO L78 Accepts]: Start accepts. Automaton has 37299 states and 54888 transitions. Word has length 325 [2025-03-03 15:03:25,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:25,775 INFO L471 AbstractCegarLoop]: Abstraction has 37299 states and 54888 transitions. [2025-03-03 15:03:25,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:25,775 INFO L276 IsEmpty]: Start isEmpty. Operand 37299 states and 54888 transitions. [2025-03-03 15:03:25,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2025-03-03 15:03:25,953 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:25,953 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:25,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-03 15:03:25,953 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:25,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:25,954 INFO L85 PathProgramCache]: Analyzing trace with hash -162488507, now seen corresponding path program 1 times [2025-03-03 15:03:25,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:25,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909407431] [2025-03-03 15:03:25,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:25,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:25,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 326 statements into 1 equivalence classes. [2025-03-03 15:03:25,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 326 of 326 statements. [2025-03-03 15:03:25,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:25,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:26,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:26,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:26,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909407431] [2025-03-03 15:03:26,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909407431] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:26,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:26,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:26,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172254902] [2025-03-03 15:03:26,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:26,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:26,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:26,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:26,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:26,061 INFO L87 Difference]: Start difference. First operand 37299 states and 54888 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:26,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:26,268 INFO L93 Difference]: Finished difference Result 109437 states and 160633 transitions. [2025-03-03 15:03:26,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:26,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 326 [2025-03-03 15:03:26,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:26,348 INFO L225 Difference]: With dead ends: 109437 [2025-03-03 15:03:26,349 INFO L226 Difference]: Without dead ends: 73021 [2025-03-03 15:03:26,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:26,394 INFO L435 NwaCegarLoop]: 2153 mSDtfsCounter, 969 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:26,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 3225 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:26,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73021 states. [2025-03-03 15:03:27,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73021 to 73019. [2025-03-03 15:03:27,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73019 states, 73018 states have (on average 1.4603796324194034) internal successors, (106634), 73018 states have internal predecessors, (106634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:27,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73019 states to 73019 states and 106634 transitions. [2025-03-03 15:03:27,716 INFO L78 Accepts]: Start accepts. Automaton has 73019 states and 106634 transitions. Word has length 326 [2025-03-03 15:03:27,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:27,717 INFO L471 AbstractCegarLoop]: Abstraction has 73019 states and 106634 transitions. [2025-03-03 15:03:27,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:27,717 INFO L276 IsEmpty]: Start isEmpty. Operand 73019 states and 106634 transitions. [2025-03-03 15:03:27,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2025-03-03 15:03:27,777 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:27,777 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:27,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-03 15:03:27,778 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:27,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:27,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1821786493, now seen corresponding path program 1 times [2025-03-03 15:03:27,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:27,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641095781] [2025-03-03 15:03:27,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:27,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:27,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 326 statements into 1 equivalence classes. [2025-03-03 15:03:27,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 326 of 326 statements. [2025-03-03 15:03:27,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:27,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:28,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:28,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641095781] [2025-03-03 15:03:28,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641095781] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:28,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:28,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:03:28,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658084263] [2025-03-03 15:03:28,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:28,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:03:28,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:28,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:03:28,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:28,301 INFO L87 Difference]: Start difference. First operand 73019 states and 106634 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:28,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:28,610 INFO L93 Difference]: Finished difference Result 207048 states and 301112 transitions. [2025-03-03 15:03:28,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:03:28,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 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 326 [2025-03-03 15:03:28,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:28,759 INFO L225 Difference]: With dead ends: 207048 [2025-03-03 15:03:28,759 INFO L226 Difference]: Without dead ends: 137549 [2025-03-03 15:03:28,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:28,841 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 1073 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 4441 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:28,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 4441 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:28,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137549 states. [2025-03-03 15:03:30,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137549 to 72146. [2025-03-03 15:03:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72146 states, 72145 states have (on average 1.4624714117402453) internal successors, (105510), 72145 states have internal predecessors, (105510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72146 states to 72146 states and 105510 transitions. [2025-03-03 15:03:30,462 INFO L78 Accepts]: Start accepts. Automaton has 72146 states and 105510 transitions. Word has length 326 [2025-03-03 15:03:30,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:30,462 INFO L471 AbstractCegarLoop]: Abstraction has 72146 states and 105510 transitions. [2025-03-03 15:03:30,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 72146 states and 105510 transitions. [2025-03-03 15:03:30,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2025-03-03 15:03:30,532 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:30,532 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:30,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-03 15:03:30,533 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:30,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:30,533 INFO L85 PathProgramCache]: Analyzing trace with hash 256055196, now seen corresponding path program 1 times [2025-03-03 15:03:30,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:30,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434993348] [2025-03-03 15:03:30,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:30,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:30,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 329 statements into 1 equivalence classes. [2025-03-03 15:03:30,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 329 of 329 statements. [2025-03-03 15:03:30,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:30,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:30,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:30,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434993348] [2025-03-03 15:03:30,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434993348] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:30,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:30,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:30,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153880250] [2025-03-03 15:03:30,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:30,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:30,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:30,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:30,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:30,648 INFO L87 Difference]: Start difference. First operand 72146 states and 105510 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:31,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:31,148 INFO L93 Difference]: Finished difference Result 201371 states and 292728 transitions. [2025-03-03 15:03:31,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:31,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 329 [2025-03-03 15:03:31,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:31,292 INFO L225 Difference]: With dead ends: 201371 [2025-03-03 15:03:31,292 INFO L226 Difference]: Without dead ends: 136725 [2025-03-03 15:03:31,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:31,363 INFO L435 NwaCegarLoop]: 1128 mSDtfsCounter, 977 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:31,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 2248 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:31,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136725 states. [2025-03-03 15:03:32,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136725 to 72635. [2025-03-03 15:03:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72635 states, 72634 states have (on average 1.4609686923479361) internal successors, (106116), 72634 states have internal predecessors, (106116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:32,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72635 states to 72635 states and 106116 transitions. [2025-03-03 15:03:32,947 INFO L78 Accepts]: Start accepts. Automaton has 72635 states and 106116 transitions. Word has length 329 [2025-03-03 15:03:32,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:32,947 INFO L471 AbstractCegarLoop]: Abstraction has 72635 states and 106116 transitions. [2025-03-03 15:03:32,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:32,947 INFO L276 IsEmpty]: Start isEmpty. Operand 72635 states and 106116 transitions. [2025-03-03 15:03:33,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2025-03-03 15:03:33,001 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:33,001 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:33,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-03 15:03:33,001 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:33,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:33,002 INFO L85 PathProgramCache]: Analyzing trace with hash 969588026, now seen corresponding path program 1 times [2025-03-03 15:03:33,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:33,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622694024] [2025-03-03 15:03:33,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:33,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:33,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 330 statements into 1 equivalence classes. [2025-03-03 15:03:33,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 330 of 330 statements. [2025-03-03 15:03:33,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:33,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:33,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:33,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622694024] [2025-03-03 15:03:33,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622694024] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:33,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:33,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:03:33,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709096840] [2025-03-03 15:03:33,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:33,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:03:33,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:33,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:03:33,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:33,647 INFO L87 Difference]: Start difference. First operand 72635 states and 106116 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:34,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:34,023 INFO L93 Difference]: Finished difference Result 131445 states and 191137 transitions. [2025-03-03 15:03:34,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:03:34,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 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 330 [2025-03-03 15:03:34,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:34,097 INFO L225 Difference]: With dead ends: 131445 [2025-03-03 15:03:34,097 INFO L226 Difference]: Without dead ends: 65121 [2025-03-03 15:03:34,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:34,137 INFO L435 NwaCegarLoop]: 1252 mSDtfsCounter, 87 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:34,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 3624 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:03:34,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65121 states. [2025-03-03 15:03:34,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65121 to 64686. [2025-03-03 15:03:34,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64686 states, 64685 states have (on average 1.4604622400865734) internal successors, (94470), 64685 states have internal predecessors, (94470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:34,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64686 states to 64686 states and 94470 transitions. [2025-03-03 15:03:34,905 INFO L78 Accepts]: Start accepts. Automaton has 64686 states and 94470 transitions. Word has length 330 [2025-03-03 15:03:34,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:34,905 INFO L471 AbstractCegarLoop]: Abstraction has 64686 states and 94470 transitions. [2025-03-03 15:03:34,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:34,905 INFO L276 IsEmpty]: Start isEmpty. Operand 64686 states and 94470 transitions. [2025-03-03 15:03:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2025-03-03 15:03:34,956 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:34,956 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:34,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-03 15:03:34,956 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:34,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:34,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1685382917, now seen corresponding path program 1 times [2025-03-03 15:03:34,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:34,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887705998] [2025-03-03 15:03:34,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:34,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:34,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 334 statements into 1 equivalence classes. [2025-03-03 15:03:35,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 334 of 334 statements. [2025-03-03 15:03:35,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:35,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:35,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:35,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887705998] [2025-03-03 15:03:35,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887705998] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:35,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:35,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 15:03:35,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420226681] [2025-03-03 15:03:35,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:35,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 15:03:35,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:35,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 15:03:35,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-03 15:03:35,787 INFO L87 Difference]: Start difference. First operand 64686 states and 94470 transitions. Second operand has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:36,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:36,282 INFO L93 Difference]: Finished difference Result 164828 states and 243385 transitions. [2025-03-03 15:03:36,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 15:03:36,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 0 states have call successors, (0), 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 334 [2025-03-03 15:03:36,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:36,449 INFO L225 Difference]: With dead ends: 164828 [2025-03-03 15:03:36,449 INFO L226 Difference]: Without dead ends: 150878 [2025-03-03 15:03:36,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-03 15:03:36,505 INFO L435 NwaCegarLoop]: 1311 mSDtfsCounter, 2419 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2419 SdHoareTripleChecker+Valid, 3473 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:36,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2419 Valid, 3473 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 15:03:36,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150878 states. [2025-03-03 15:03:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150878 to 111406. [2025-03-03 15:03:38,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111406 states, 111405 states have (on average 1.4576724563529464) internal successors, (162392), 111405 states have internal predecessors, (162392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:38,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111406 states to 111406 states and 162392 transitions. [2025-03-03 15:03:38,633 INFO L78 Accepts]: Start accepts. Automaton has 111406 states and 162392 transitions. Word has length 334 [2025-03-03 15:03:38,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:38,633 INFO L471 AbstractCegarLoop]: Abstraction has 111406 states and 162392 transitions. [2025-03-03 15:03:38,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:38,633 INFO L276 IsEmpty]: Start isEmpty. Operand 111406 states and 162392 transitions. [2025-03-03 15:03:38,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2025-03-03 15:03:38,714 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:38,714 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:38,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-03 15:03:38,714 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:38,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:38,715 INFO L85 PathProgramCache]: Analyzing trace with hash 405519239, now seen corresponding path program 1 times [2025-03-03 15:03:38,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:38,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298836865] [2025-03-03 15:03:38,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:38,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:38,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 334 statements into 1 equivalence classes. [2025-03-03 15:03:38,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 334 of 334 statements. [2025-03-03 15:03:38,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:38,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:39,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:39,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298836865] [2025-03-03 15:03:39,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298836865] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:39,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:39,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 15:03:39,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725918305] [2025-03-03 15:03:39,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:39,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 15:03:39,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:39,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 15:03:39,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-03 15:03:39,150 INFO L87 Difference]: Start difference. First operand 111406 states and 162392 transitions. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:39,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:39,909 INFO L93 Difference]: Finished difference Result 172918 states and 261729 transitions. [2025-03-03 15:03:39,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 15:03:39,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 0 states have call successors, (0), 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 334 [2025-03-03 15:03:39,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:40,123 INFO L225 Difference]: With dead ends: 172918 [2025-03-03 15:03:40,124 INFO L226 Difference]: Without dead ends: 167094 [2025-03-03 15:03:40,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-03 15:03:40,206 INFO L435 NwaCegarLoop]: 1296 mSDtfsCounter, 3347 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3347 SdHoareTripleChecker+Valid, 4314 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:40,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3347 Valid, 4314 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 15:03:40,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167094 states. [2025-03-03 15:03:42,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167094 to 127908. [2025-03-03 15:03:42,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127908 states, 127907 states have (on average 1.471021914359652) internal successors, (188154), 127907 states have internal predecessors, (188154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:42,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127908 states to 127908 states and 188154 transitions. [2025-03-03 15:03:42,447 INFO L78 Accepts]: Start accepts. Automaton has 127908 states and 188154 transitions. Word has length 334 [2025-03-03 15:03:42,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:42,447 INFO L471 AbstractCegarLoop]: Abstraction has 127908 states and 188154 transitions. [2025-03-03 15:03:42,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:42,447 INFO L276 IsEmpty]: Start isEmpty. Operand 127908 states and 188154 transitions. [2025-03-03 15:03:42,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2025-03-03 15:03:42,540 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:42,540 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:42,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-03 15:03:42,540 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:42,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:42,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2114440695, now seen corresponding path program 1 times [2025-03-03 15:03:42,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:42,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133382468] [2025-03-03 15:03:42,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:42,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:42,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 334 statements into 1 equivalence classes. [2025-03-03 15:03:42,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 334 of 334 statements. [2025-03-03 15:03:42,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:42,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:42,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:42,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133382468] [2025-03-03 15:03:42,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133382468] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:42,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:42,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:42,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166426331] [2025-03-03 15:03:42,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:42,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:42,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:42,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:42,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:42,700 INFO L87 Difference]: Start difference. First operand 127908 states and 188154 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:43,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:43,642 INFO L93 Difference]: Finished difference Result 266964 states and 397858 transitions. [2025-03-03 15:03:43,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:43,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 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 334 [2025-03-03 15:03:43,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:44,159 INFO L225 Difference]: With dead ends: 266964 [2025-03-03 15:03:44,160 INFO L226 Difference]: Without dead ends: 228958 [2025-03-03 15:03:44,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:44,219 INFO L435 NwaCegarLoop]: 1066 mSDtfsCounter, 575 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:44,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1950 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 15:03:44,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228958 states. [2025-03-03 15:03:46,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228958 to 228956. [2025-03-03 15:03:47,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228956 states, 228955 states have (on average 1.4652661003253915) internal successors, (335480), 228955 states have internal predecessors, (335480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:47,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228956 states to 228956 states and 335480 transitions. [2025-03-03 15:03:47,464 INFO L78 Accepts]: Start accepts. Automaton has 228956 states and 335480 transitions. Word has length 334 [2025-03-03 15:03:47,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:47,465 INFO L471 AbstractCegarLoop]: Abstraction has 228956 states and 335480 transitions. [2025-03-03 15:03:47,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:47,465 INFO L276 IsEmpty]: Start isEmpty. Operand 228956 states and 335480 transitions. [2025-03-03 15:03:47,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2025-03-03 15:03:47,889 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:47,890 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:47,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-03 15:03:47,890 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:47,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:47,891 INFO L85 PathProgramCache]: Analyzing trace with hash 333132681, now seen corresponding path program 1 times [2025-03-03 15:03:47,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:47,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435652861] [2025-03-03 15:03:47,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:47,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:47,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 334 statements into 1 equivalence classes. [2025-03-03 15:03:47,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 334 of 334 statements. [2025-03-03 15:03:47,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:47,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:48,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:48,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435652861] [2025-03-03 15:03:48,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435652861] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:48,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:48,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:03:48,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290711096] [2025-03-03 15:03:48,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:48,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:03:48,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:48,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:03:48,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:48,049 INFO L87 Difference]: Start difference. First operand 228956 states and 335480 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:49,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:03:49,174 INFO L93 Difference]: Finished difference Result 453143 states and 676306 transitions. [2025-03-03 15:03:49,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:03:49,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 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 334 [2025-03-03 15:03:49,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:03:49,691 INFO L225 Difference]: With dead ends: 453143 [2025-03-03 15:03:49,691 INFO L226 Difference]: Without dead ends: 389317 [2025-03-03 15:03:49,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:03:49,831 INFO L435 NwaCegarLoop]: 1066 mSDtfsCounter, 601 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:03:49,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1992 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:03:50,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389317 states. [2025-03-03 15:03:54,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389317 to 389315. [2025-03-03 15:03:55,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389315 states, 389314 states have (on average 1.4744704788422713) internal successors, (574032), 389314 states have internal predecessors, (574032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:56,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389315 states to 389315 states and 574032 transitions. [2025-03-03 15:03:56,235 INFO L78 Accepts]: Start accepts. Automaton has 389315 states and 574032 transitions. Word has length 334 [2025-03-03 15:03:56,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:03:56,236 INFO L471 AbstractCegarLoop]: Abstraction has 389315 states and 574032 transitions. [2025-03-03 15:03:56,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:03:56,236 INFO L276 IsEmpty]: Start isEmpty. Operand 389315 states and 574032 transitions. [2025-03-03 15:03:56,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2025-03-03 15:03:56,508 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:03:56,508 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:03:56,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-03 15:03:56,508 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:03:56,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:03:56,509 INFO L85 PathProgramCache]: Analyzing trace with hash 809521161, now seen corresponding path program 1 times [2025-03-03 15:03:56,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:03:56,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461508332] [2025-03-03 15:03:56,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:03:56,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:03:56,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 334 statements into 1 equivalence classes. [2025-03-03 15:03:56,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 334 of 334 statements. [2025-03-03 15:03:56,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:03:56,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:03:57,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:03:57,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:03:57,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461508332] [2025-03-03 15:03:57,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461508332] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:03:57,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:03:57,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:03:57,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104798323] [2025-03-03 15:03:57,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:03:57,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:03:57,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:03:57,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:03:57,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:03:57,200 INFO L87 Difference]: Start difference. First operand 389315 states and 574032 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:04:00,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:04:00,320 INFO L93 Difference]: Finished difference Result 1123309 states and 1653167 transitions. [2025-03-03 15:04:00,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 15:04:00,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 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 334 [2025-03-03 15:04:00,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:04:01,372 INFO L225 Difference]: With dead ends: 1123309 [2025-03-03 15:04:01,372 INFO L226 Difference]: Without dead ends: 734263 [2025-03-03 15:04:01,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 15:04:01,575 INFO L435 NwaCegarLoop]: 1882 mSDtfsCounter, 1009 mSDsluCounter, 2895 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 4777 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:04:01,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 4777 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:04:02,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734263 states.